8v55

Human mitochondrial DNA polymerase gamma bound to a replication fork in an open conformation

Method: ELECTRON MICROSCOPY D_max: 139.7 Å Quality: GOOD

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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA polymerase subunit gamma-1

Homo sapiens

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 3 DNA 2 PDB declaration: pentameric（5） Consistent with all polymer counts	Chain A； UniProt 26–1239	Mutation：D198A, E200A	DNA polymerase subunit gamma-2, mitochondrial × 2 （Q9UHN1） DNA primer chain × 1 DNA template chain × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 4.20 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 8V55	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
3IKM Crystal structure of human mitochondrial DNA polymerase holoenzyme Deposited 2009-08-06	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 70–1239（1170 aa） Fragment：UNP residues 70-1239	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；VAPOR DIFFUSION	Resolution 3.24 Å R-free 0.303
3IKM Crystal structure of human mitochondrial DNA polymerase holoenzyme Deposited 2009-08-06	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain D 70–1239（1170 aa） Fragment：UNP residues 70-1239	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；VAPOR DIFFUSION	Resolution 3.24 Å R-free 0.303
4ZTU Structural basis for processivity and antiviral drug toxicity in human mitochondrial DNA replicase Deposited 2015-05-15	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 30–1239（1210 aa） Fragment：UNP residues 30-1239	Mutation：D198A, E200A	MG MAGNESIUM ION × 2 DCT 2',3'-DIDEOXYCYTIDINE 5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；297 K；PEG8000, KCl, CaCl2	Resolution 3.30 Å R-free 0.316
4ZTZ Structural basis for processivity and antiviral drug toxicity in human mitochondrial DNA replicase Deposited 2015-05-15	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 30–1239（1210 aa） Fragment：UNP residues 30-1239	Not recorded	MG MAGNESIUM ION × 2 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；297 K；PEG8000, KCl, CaCl2	Resolution 3.44 Å R-free 0.320
5C51 Probing the Structural and Molecular Basis of Nucleotide Selectivity by Human Mitochondrial DNA Polymerase gamma Deposited 2015-06-19	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 25–1239（1215 aa）	Not recorded	MG MAGNESIUM ION × 2 1RY [[(2R,5S)-5-(4-azanyl-5-fluoranyl-2-oxidanylidene-pyrimidin-1-yl)-1,3-oxathiolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；300 K；PEG4000, KCl, HEPES	Resolution 3.43 Å R-free 0.345
5C52 Probing the Structural and Molecular Basis of Nucleotide Selectivity by Human Mitochondrial DNA Polymerase gamma Deposited 2015-06-19	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 25–1239（1215 aa）	Not recorded	1RY [[(2R,5S)-5-(4-azanyl-5-fluoranyl-2-oxidanylidene-pyrimidin-1-yl)-1,3-oxathiolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；300 K；PEG4000, KCl, HEPES	Resolution 3.64 Å R-free 0.314
5C53 Probing the Structural and Molecular Basis of Nucleotide Selectivity by Human Mitochondrial DNA Polymerase gamma Deposited 2015-06-19	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 25–1239（1215 aa）	Not recorded	MG MAGNESIUM ION × 2 4Y3 [[(2~{S},5~{R})-5-(4-azanyl-5-fluoranyl-2-oxidanylidene-pyrimidin-1-yl)-1,3$l^{4}-oxathiolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 DOC 2',3'-DIDEOXYCYTIDINE-5'-MONOPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；300 K；PEG4000, KCl, HEPES	Resolution 3.57 Å R-free 0.338
8D33 Human mitochondrial DNA polymerase gamma ternary complex with GC basepair Deposited 2022-05-31	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.46 Å
8D37 Human mitochondrial DNA polymerase gamma ternary complex with GT basepair in replication conformer Deposited 2022-05-31	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.65 Å
8D3R Human mitochondrial DNA polymerase gamma ternary complex with GT basepair in intermediate conformer Deposited 2022-06-01	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 CA CALCIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8D42 Human mitochondrial DNA polymerase gamma ternary complex with GT basepair in editing conformer (composite) Deposited 2022-06-01	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	CA CALCIUM ION × 3 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.91 Å
8G5I Cryo-EM structure of the Mismatch Sensing Complex (I) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris, pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.75 Å
8G5J Cryo-EM structure of the Mismatch Uncoupling Complex (II) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris-Hcl pH 7.9, 100 mM Nacl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.63 Å
8G5K Cryo-EM structure of the Wedge Alignment Complex (VIII) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8G5L Cryo-EM structure of the Primer Separation Complex (IX) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8G5M Cryo-EM structure of the Mismatch Locking Complex (III) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.58 Å
8G5N Cryo-EM structure of the Guide loop Engagement Complex (VI) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.73 Å
8G5O Cryo-EM structure of the Guide loop Engagement Complex (IV) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris-Hcl pH 7.9, 100 mM Nacl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.61 Å
8G5P Cryo-EM structure of the Guide loop Engagement Complex (V) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris-Hcl pH 7.9, 100 mM Nacl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
8T7E Cryo-EM structure of the Backtracking Initiation Complex (VII) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-06-20	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris, pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.08 Å
8UDK Human Mitochondrial DNA Polymerase gamma R853A Ternary Complex Deposited 2023-09-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: heptameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A, R853A	DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293.15 K；100 mM MES (pH 6.0), 150 mM NaCl, 10 mM CaCl2, 50 mM BME, 3% PEG 8000, 1-8% sucrose, 2% Jeffamine, 0.8 M NDSB	Resolution 3.43 Å R-free 0.234
8UDL Human Mitochondrial DNA Polymerase Gamma Binary Complex Deposited 2023-09-28	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 1–1239（1239 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.37 Å
8V54 Engaged conformation of the human mitochondrial DNA polymerase gamma bound to DNA Deposited 2023-11-30	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Mutation：D198A, E200A	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8V5D Human mitochondrial DNA polymerase catalytic subunit, PolG, in an APO conformation Deposited 2023-11-30	Different oligomeric state Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 26–1239（1214 aa）	Mutation：D198A, E200A	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8V5R Active conformation of DNA polymerase gamma bound to DNA Deposited 2023-11-30	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Mutation：D198A, E200A	MG MAGNESIUM ION × 1 D3T 2',3'-DIDEOXY-THYMIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
9GGB Structure of the G848S mutant of human mitochondrial DNA polymerase gamma in complex with PZL-A Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Mutation：G848S	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 A1IK1 1-[(4S)-8-chloranyl-3,4-dihydro-2H-chromen-4-yl]-3-(1-phenylpyrazol-3-yl)urea × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.63 Å
9GGC Structure of the G848S mutant of human mitochondrial DNA polymerase gamma Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Mutation：G848S	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.39 Å
9GGD Structure of the A467T mutant of human mitochondrial DNA polymerase gamma in complex with PZL-A Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Mutation：A467T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 A1IK1 1-[(4S)-8-chloranyl-3,4-dihydro-2H-chromen-4-yl]-3-(1-phenylpyrazol-3-yl)urea × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.67 Å
9GGE Structure of the A467T mutant of human mitochondrial DNA polymerase gamma Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Mutation：A467T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.69 Å
9GGF Structure of WT human mitochondrial DNA polymerase gamma Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Not recorded	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.65 Å
9IC1 Chimeric mitochondrial DNA polymerase gamma ternary complex (hAmB) in replication conformer Deposited 2025-02-14	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Not recorded	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.73 Å
9IC3 Chimeric mitochondrial DNA polymerase gamma ternary complex (hAmB) in mouse-like error-editing conformer (composite) Deposited 2025-02-14	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain A 26–1239（1214 aa）	Not recorded	CA CALCIUM ION × 3 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.96 Å
9Y4C Strand displacement state I of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
9Y4D Strand displacement state II of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.94 Å
9Y4E Strand displacement state III of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
9Y4F Strand displacement state IV of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain A 1–1239（1239 aa）	Mutation：D198A, E200A	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.62 Å

35 other PDB entries and 36 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	DPOG1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 16–1229； UniProt 26–1239

DNA polymerase subunit gamma-2, mitochondrial

Homo sapiens

UniProt Q9UHN1

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein–DNA Heteromer Protein × 3 DNA 2 PDB declaration: pentameric（5） Consistent with all polymer counts	Chain B； UniProt 26–485 Chain C； UniProt 26–485	Not recorded	DNA polymerase subunit gamma-1 × 1 （P54098） DNA primer chain × 1 DNA template chain × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 4.20 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 8V55	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
2G4C Crystal Structure of human DNA polymerase gamma accessory subunit Deposited 2006-02-22	Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 26–485（460 aa） Chain C 26–485（460 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8；298 K；10%PEG 8000, 100 mM Tris-Cl, pH 8.0, VAPOR DIFFUSION, temperature 298.0K	Resolution 3.15 Å R-free 0.285
2G4C Crystal Structure of human DNA polymerase gamma accessory subunit Deposited 2006-02-22	Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain B 26–485（460 aa） Chain D 26–485（460 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8；298 K；10%PEG 8000, 100 mM Tris-Cl, pH 8.0, VAPOR DIFFUSION, temperature 298.0K	Resolution 3.15 Å R-free 0.285
3IKL Crystal structure of Pol gB delta-I4. Deposited 2009-08-06	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–146（146 aa） Chain A 181–485（305 aa） Chain B 1–146（146 aa） Chain B 181–485（305 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；VAPOR DIFFUSION	Resolution 3.10 Å R-free 0.294
3IKM Crystal structure of human mitochondrial DNA polymerase holoenzyme Deposited 2009-08-06	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 59–485（427 aa） Fragment：UNP residues 59-485 Chain C 59–485（427 aa） Fragment：UNP residues 59-485	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；VAPOR DIFFUSION	Resolution 3.24 Å R-free 0.303
3IKM Crystal structure of human mitochondrial DNA polymerase holoenzyme Deposited 2009-08-06	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain E 59–485（427 aa） Fragment：UNP residues 59-485 Chain F 59–485（427 aa） Fragment：UNP residues 59-485	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；VAPOR DIFFUSION	Resolution 3.24 Å R-free 0.303
4ZTU Structural basis for processivity and antiviral drug toxicity in human mitochondrial DNA replicase Deposited 2015-05-15	Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Not recorded	MG MAGNESIUM ION × 2 DCT 2',3'-DIDEOXYCYTIDINE 5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；297 K；PEG8000, KCl, CaCl2	Resolution 3.30 Å R-free 0.316
4ZTZ Structural basis for processivity and antiviral drug toxicity in human mitochondrial DNA replicase Deposited 2015-05-15	Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Not recorded	MG MAGNESIUM ION × 2 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；297 K；PEG8000, KCl, CaCl2	Resolution 3.44 Å R-free 0.320
5C51 Probing the Structural and Molecular Basis of Nucleotide Selectivity by Human Mitochondrial DNA Polymerase gamma Deposited 2015-06-19	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	MG MAGNESIUM ION × 2 1RY [[(2R,5S)-5-(4-azanyl-5-fluoranyl-2-oxidanylidene-pyrimidin-1-yl)-1,3-oxathiolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；300 K；PEG4000, KCl, HEPES	Resolution 3.43 Å R-free 0.345
5C52 Probing the Structural and Molecular Basis of Nucleotide Selectivity by Human Mitochondrial DNA Polymerase gamma Deposited 2015-06-19	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	1RY [[(2R,5S)-5-(4-azanyl-5-fluoranyl-2-oxidanylidene-pyrimidin-1-yl)-1,3-oxathiolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 MG MAGNESIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；300 K；PEG4000, KCl, HEPES	Resolution 3.64 Å R-free 0.314
8D33 Human mitochondrial DNA polymerase gamma ternary complex with GC basepair Deposited 2022-05-31	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.46 Å
8D37 Human mitochondrial DNA polymerase gamma ternary complex with GT basepair in replication conformer Deposited 2022-05-31	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.65 Å
8D3R Human mitochondrial DNA polymerase gamma ternary complex with GT basepair in intermediate conformer Deposited 2022-06-01	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 CA CALCIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.04 Å
8D42 Human mitochondrial DNA polymerase gamma ternary complex with GT basepair in editing conformer (composite) Deposited 2022-06-01	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	CA CALCIUM ION × 3 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.91 Å
8G5I Cryo-EM structure of the Mismatch Sensing Complex (I) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris, pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.75 Å
8G5J Cryo-EM structure of the Mismatch Uncoupling Complex (II) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris-Hcl pH 7.9, 100 mM Nacl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.63 Å
8G5K Cryo-EM structure of the Wedge Alignment Complex (VIII) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8G5L Cryo-EM structure of the Primer Separation Complex (IX) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8G5M Cryo-EM structure of the Mismatch Locking Complex (III) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.58 Å
8G5N Cryo-EM structure of the Guide loop Engagement Complex (VI) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.73 Å
8G5O Cryo-EM structure of the Guide loop Engagement Complex (IV) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris-Hcl pH 7.9, 100 mM Nacl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.61 Å
8G5P Cryo-EM structure of the Guide loop Engagement Complex (V) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-02-13	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris-Hcl pH 7.9, 100 mM Nacl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.78 Å
8T7E Cryo-EM structure of the Backtracking Initiation Complex (VII) of Human Mitochondrial DNA Polymerase Gamma Deposited 2023-06-20	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.9；10 mM Tris, pH 7.9, 100 mM NaCl, 10 mM DTT, and 2 mM MgCl2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.08 Å
8UDK Human Mitochondrial DNA Polymerase gamma R853A Ternary Complex Deposited 2023-09-28	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: heptameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293.15 K；100 mM MES (pH 6.0), 150 mM NaCl, 10 mM CaCl2, 50 mM BME, 3% PEG 8000, 1-8% sucrose, 2% Jeffamine, 0.8 M NDSB	Resolution 3.43 Å R-free 0.234
8UDL Human Mitochondrial DNA Polymerase Gamma Binary Complex Deposited 2023-09-28	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.37 Å
8V54 Engaged conformation of the human mitochondrial DNA polymerase gamma bound to DNA Deposited 2023-11-30	Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8V5R Active conformation of DNA polymerase gamma bound to DNA Deposited 2023-11-30	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Not recorded	MG MAGNESIUM ION × 1 D3T 2',3'-DIDEOXY-THYMIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
9GGB Structure of the G848S mutant of human mitochondrial DNA polymerase gamma in complex with PZL-A Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 A1IK1 1-[(4S)-8-chloranyl-3,4-dihydro-2H-chromen-4-yl]-3-(1-phenylpyrazol-3-yl)urea × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.63 Å
9GGC Structure of the G848S mutant of human mitochondrial DNA polymerase gamma Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.39 Å
9GGD Structure of the A467T mutant of human mitochondrial DNA polymerase gamma in complex with PZL-A Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 A1IK1 1-[(4S)-8-chloranyl-3,4-dihydro-2H-chromen-4-yl]-3-(1-phenylpyrazol-3-yl)urea × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.67 Å
9GGE Structure of the A467T mutant of human mitochondrial DNA polymerase gamma Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.69 Å
9GGF Structure of WT human mitochondrial DNA polymerase gamma Deposited 2024-08-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.65 Å
9IBX Chimeric mitochondrial DNA polymerase gamma ternary complex (mAhB) in replication conformer Deposited 2025-02-14	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 1 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.54 Å
9IBZ Chimeric mitochondrial DNA polymerase gamma ternary complex (mAhB) in human-like error-editing conformer (composite) Deposited 2025-02-14	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 2 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.08 Å
9IC0 Chimeric mitochondrial DNA polymerase gamma ternary complex (mAhB) in mouse-like error-editing conformer (composite) Deposited 2025-02-14	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: pentameric	Chain B 26–485（460 aa） Chain C 26–485（460 aa）	Mutation：A169T Mutation：A169T	CA CALCIUM ION × 2 DCP 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.24 Å
9Y4C Strand displacement state I of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
9Y4D Strand displacement state II of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.94 Å
9Y4E Strand displacement state III of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
9Y4F Strand displacement state IV of Human mitochondrial DNA polymerase gamma ternary complex Deposited 2025-09-03	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric	Chain B 1–485（485 aa） Chain C 1–485（485 aa）	Not recorded	CA CALCIUM ION × 1 DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.62 Å

36 other PDB entries and 38 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	DPOG2_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 15–474； UniProt 26–485 Author chain C； PDBConstruct 15–474； UniProt 26–485

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	8v55
Deposition date deposition_date	2023-11-30
Structure title title	Human mitochondrial DNA polymerase gamma bound to a replication fork in an open conformation
Keywords keywords	DNA BINDING PROTEIN, DNA polymerase, mitochondrial DNA replication, DNA polymerase gamma, DNA BINDING PROTEIN-DNA complex; DNA BINDING PROTEIN/DNA
Experimental Method method	ELECTRON MICROSCOPY

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	43.30 Å
Radius of gyration Rg (electron density) rg_electron	42.66 Å
Forward intensity I(0) i0	691788000.00
Molecular weight molecular_weight	207900.0 kDa
Excluded volume excluded_volume	256610 Å³
Envelope volume envelope_volume	369780 Å³
Hydration-shell volume shell_volume	70851 Å³
Envelope diameter envelope_diameter	136.5 Å
Shell Rg shell_rg	48.90 Å
Envelope Rg envelope_rg	41.90 Å
Shape Rg shape_rg	42.64 Å
Total Rg total_rg	43.01 Å
Total atoms total_atoms	14582
Residues n_residues	1754
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	139.7 Å
Rg (real space) rg_real	43.19 Å
Rg uncertainty (real space) rg_real_error	1.37 Å
I(0) (real space) i0_real	6.9180e+08
I(0) uncertainty (real space) i0_real_error	1.2530e+07
Rg (reciprocal space) rg_reciprocal	43.30 Å
I(0) (reciprocal space) i0_reciprocal	691900000.0000
Solution quality estimate total_estimate	0.8296
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	50.4 Å
Skewness Skewness skewness	0.220
Kurtosis Kurtosis kurtosis	-0.562
Angular range angular_range	— – 0.1800 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	80560000.0000
Real-space data points n_real_points	37
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.927; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.000

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	DNA polymerase subunit gamma-1
Molecular weight formula_weight	138723.4 kDa
Mutation mutation	D198A, E200A
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	15084

MGGSHHHHHHGSRFMVSSSVPASDPSDGQRRRQQQQQQQQQQQQQPQQPQVLSSEGGQLRHNPLDIQMLSRGLHEQIFGQGGEMPGEAAVRRSVEHLQKHGLWGQPAVPLPDVELRLPPLYGDNLDQHFRLLAQKQSLPYLEAANLLLQAQLPPKPPAWAWAEGWTRYGPEGEAVPVAIPEERALVFAVAVCLAEGTCPTLAVAISPSAWYSWCSQRLVEERYSWTSQLSPADLIPLEVPTGASSPTQRDWQEQLVVGHNVSFDRAHIREQYLIQGSRMRFLDTMSMHMAISGLSSFQRSLWIAAKQGKHKVQPPTKQGQKSQRKARRGPAISSWDWLDISSVNSLAEVHRLYVGGPPLEKEPRELFVKGTMKDIRENFQDLMQYCAQDVWATHEVFQQQLPLFLERCPHPVTLAGMLEMGVSYLPVNQNWERYLAEAQGTYEELQREMKKSLMDLANDACQLLSGERYKEDPWLWDLEWDLQEFKQKKAKKVKKEPATASKLPIEGAGAPGDPMDQEDLGPCSEEEEFQQDVMARACLQKLKGTTELLPKRPQHLPGHPGWYRKLCPRLDDPAWTPGPSLLSLQMRVTPKLMALTWDGFPLHYSERHGWGYLVPGRRDNLAKLPTGTTLESAGVVCPYRAIESLYRKHCLEQGKQQLMPQEAGLAEEFLLTDNSAIWQTVEELDYLEVEAEAKMENLRAAVPGQPLALTARGGPKDTQPSYHHGNGPYNDVDIPGCWFFKLPHKDGNSCNVGSPFAKDFLPKMEDGTLQAGPGGASGPRALEINKMISFWRNAHKRISSQMVVWLPRSALPRAVIRHPDYDEEGLYGAILPQVVTAGTITRRAVEPTWLTASNARPDRVGSELKAMVQAPPGYTLVGADVDSQELWIAAVLGDAHFAGMHGCTAFGWMTLQGRKSRGTDLHSKTATTVGISREHAKIFNYGRIYGAGQPFAERLLMQFNHRLTQQEAAEKAQQMYAATKGLRWYRLSDEGEWLVRELNLPVDRTEGGWISLQDLRKVQRETARKSQWKKWEVVAERAWKGGTESEMFNKLESIATSDIPRTPVLGCCISRALEPSAVQEEFMTSRVNWVVQSSAVDYLHLMLVAMKWLFEEFAIDGRFCISIHDEVRYLVREEDRYRAALALQITNLLTRCMFAYKLGLNDLPQSVAFFSAVDIDRCLRKEVTMDCKTPSNPTGMERRYGIPQGEALDIYQIIELTKGSLEKRSQPGP

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	unidentified baculovirus

Entity 2 Entity 2 polymer

Description description	DNA polymerase subunit gamma-2, mitochondrial
Molecular weight formula_weight	53787.3 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,C

MASRGSHHHHHHGADAGQPELLTERSSPKGGHVKSHAELEGNGEHPEAPGSGEGSEALLEICQRRHFLSGSKQQLSRDSLLSGCHPGFGPLGVELRKNLAAEWWTSVVVFREQVFPVDALHHKPGPLLPGDSAFRLVSAETLREILQDKELSKEQLVAFLENVLKTSGKLRENLLHGALEHYVNCLDLVNKRLPYGLAQIGVCFHPVFDTKQIRNGVKSIGEKTEASLVWFTPPRTSNQWLDFWLRHRLQWWRKFAMSPSNFSSSDCQDEEGRKGNKLYYNFPWGKELIETLWNLGDHELLHMYPGNVSKLHGRDGRKNVVPCVLSVNGDLDRGMLAYLYDSFQLTENSFTRKKNLHRKVLKLHPCLAPIKVALDVGRGPTLELRQVCQGLFNELLENGISVWPGYLETMQSSLEQLYSKYDEMSILFTVLVTETTLENGLIHLRSRDTTMKEMMHISKLKDFLIKYISSAKNV

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 3 Entity 3 polymer

Description description	DNA primer chain
Molecular weight formula_weight	7595.9 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	P

CGCCAGGGTTTTCCCAGTCACGACC

Entity 4 Entity 4 polymer

Description description	DNA template chain
Molecular weight formula_weight	13597.7 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	T

GCACTGGCCGTCGTTTTACGGTCGTGACTGGGAAAACCCTGGCG

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8. Citations (1)

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	4.20 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	35252

fit	/app/data/saxs_computation/v5/8v55/8v55.fit
pddf	/app/data/pr_computation/v5/8v55/8v55.pr.out
profile	/app/data/saxs_computation/v5/8v55/8v55.dat

Human mitochondrial DNA polymerase gamma bound to a replication fork in an open conformation

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA polymerase subunit gamma-1

State in the Current Structure

Other States of the Same Protein in the Database

DNA polymerase subunit gamma-2, mitochondrial

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)