9c5q

Human DNA polymerase theta helicase domain in microhomology annealed state 2, dimer form

Method: ELECTRON MICROSCOPY D_max: 146.8 Å Quality: GOOD

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

DNA polymerase theta

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 Homooligomer Protein × 2 DNA 2 PDB declaration: tetrameric（4） Consistent with all polymer counts	Chain A； UniProt 68–891 Chain C； UniProt 68–891	Not recorded	;DNA (5'-D(PTPTPTPTPTPTPTPTPCPCPCPGPGPG)-3') ; × 2	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.10 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 9C5Q	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
4X0P Ternary complex of human DNA polymerase theta C-terminal domain binding ddATP opposite a tetrahydrofuran AP site analog Deposited 2014-11-21	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1792–2590（799 aa） Fragment：UNP residues 1792-2590	Not recorded	GOL GLYCEROL × 2 CA CALCIUM ION × 1 DDS 2',3'-dideoxyadenosine triphosphate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；291 K；PEG 2000mme, MPD, potassium chloride, calcium chloride, TRIS buffer, glycerol	Resolution 3.91 Å R-free 0.302
4X0P Ternary complex of human DNA polymerase theta C-terminal domain binding ddATP opposite a tetrahydrofuran AP site analog Deposited 2014-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain B 1792–2590（799 aa） Fragment：UNP residues 1792-2590	Not recorded	GOL GLYCEROL × 2 CA CALCIUM ION × 1 DDS 2',3'-dideoxyadenosine triphosphate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；291 K；PEG 2000mme, MPD, potassium chloride, calcium chloride, TRIS buffer, glycerol	Resolution 3.91 Å R-free 0.302
4X0P Ternary complex of human DNA polymerase theta C-terminal domain binding ddATP opposite a tetrahydrofuran AP site analog Deposited 2014-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain C 1792–2590（799 aa） Fragment：UNP residues 1792-2590	Not recorded	GOL GLYCEROL × 2 CA CALCIUM ION × 1 DDS 2',3'-dideoxyadenosine triphosphate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；291 K；PEG 2000mme, MPD, potassium chloride, calcium chloride, TRIS buffer, glycerol	Resolution 3.91 Å R-free 0.302
4X0P Ternary complex of human DNA polymerase theta C-terminal domain binding ddATP opposite a tetrahydrofuran AP site analog Deposited 2014-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain D 1792–2590（799 aa） Fragment：UNP residues 1792-2590	Not recorded	GOL GLYCEROL × 2 CA CALCIUM ION × 1 DDS 2',3'-dideoxyadenosine triphosphate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；291 K；PEG 2000mme, MPD, potassium chloride, calcium chloride, TRIS buffer, glycerol	Resolution 3.91 Å R-free 0.302
4X0Q Ternary complex of human DNA polymerase theta C-terminal domain binding ddGTP opposite dCMP Deposited 2014-11-22	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1819–2590（772 aa） Fragment：UNP residues 1815-2590	Not recorded	GOL GLYCEROL × 2 MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；291 K；PEG 2000mme, MPD, potassium chloride, TRIS buffer, glycerol	Resolution 3.90 Å R-free 0.316
4X0Q Ternary complex of human DNA polymerase theta C-terminal domain binding ddGTP opposite dCMP Deposited 2014-11-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain B 1819–2590（772 aa） Fragment：UNP residues 1815-2590	Not recorded	GOL GLYCEROL × 2 MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；291 K；PEG 2000mme, MPD, potassium chloride, TRIS buffer, glycerol	Resolution 3.90 Å R-free 0.316
5A9F Crystal structure of the Helicase domain of human DNA polymerase theta in complex with ADP Deposited 2015-07-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 67–894（828 aa） Fragment：HELICASE DOMAIN, RESIDUES 67-894	Not recorded	ADP ADENOSINE-5'-DIPHOSPHATE × 4 K POTASSIUM ION × 4 MG MAGNESIUM ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions 19% PEG 3350, 0.2M POTASSIUM CITRATE TRIBASIC	Resolution 3.20 Å R-free 0.273
5A9J Crystal structure of the Helicase domain of human DNA polymerase theta, apo-form Deposited 2015-07-21	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–894（894 aa） Fragment：HELICASE DOMAIN, UNP RESIDUES 1-894	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions 0.2M NACL, 20% PEG 6K, 10% ETHYLENE GLYCOL, 0.1 M HEPES PH 7.0	Resolution 3.55 Å R-free 0.265
5A9J Crystal structure of the Helicase domain of human DNA polymerase theta, apo-form Deposited 2015-07-21	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–894（894 aa） Fragment：HELICASE DOMAIN, UNP RESIDUES 1-894	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions 0.2M NACL, 20% PEG 6K, 10% ETHYLENE GLYCOL, 0.1 M HEPES PH 7.0	Resolution 3.55 Å R-free 0.265
5A9J Crystal structure of the Helicase domain of human DNA polymerase theta, apo-form Deposited 2015-07-21	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 1–894（894 aa） Fragment：HELICASE DOMAIN, UNP RESIDUES 1-894	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions 0.2M NACL, 20% PEG 6K, 10% ETHYLENE GLYCOL, 0.1 M HEPES PH 7.0	Resolution 3.55 Å R-free 0.265
5A9J Crystal structure of the Helicase domain of human DNA polymerase theta, apo-form Deposited 2015-07-21	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 1–894（894 aa） Fragment：HELICASE DOMAIN, UNP RESIDUES 1-894	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions 0.2M NACL, 20% PEG 6K, 10% ETHYLENE GLYCOL, 0.1 M HEPES PH 7.0	Resolution 3.55 Å R-free 0.265
5AGA Crystal structure of the Helicase domain of human DNA polymerase theta in complex with AMPPNP Deposited 2015-01-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 67–894（828 aa） Fragment：HELICASE DOMAIN, RESIDUES 67-894	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 FLC CITRATE ANION × 4 K POTASSIUM ION × 4 MG MAGNESIUM ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions 19% PEG 3350, 0.2M POTASSIUM CITRATE TRIBASIC	Resolution 2.90 Å R-free 0.264
5AGA Crystal structure of the Helicase domain of human DNA polymerase theta in complex with AMPPNP Deposited 2015-01-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 67–894（828 aa） Fragment：HELICASE DOMAIN, RESIDUES 67-894	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 FLC CITRATE ANION × 1 K POTASSIUM ION × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions 19% PEG 3350, 0.2M POTASSIUM CITRATE TRIBASIC	Resolution 2.90 Å R-free 0.264
6XBU polymerase domain of polymerase-theta Deposited 2020-06-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Homooligomer；Protein × 2 PDB declaration: hexameric	Chain A 1819–1860（42 aa） Chain A 1068–1089（22 aa） Chain A 1935–2145（211 aa） Chain A 2176–2260（85 aa） Chain A 2307–2512（206 aa） Chain A 2527–2590（64 aa）	Not recorded	DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；291 K；20% (w/v) Ethanol	Resolution 3.29 Å R-free 0.281
7ZUS Crystal structure of ternary complex of Pol theta polymerase domain Deposited 2022-05-13	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain AAA 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate.	Resolution 2.26 Å R-free 0.238
7ZUS Crystal structure of ternary complex of Pol theta polymerase domain Deposited 2022-05-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain BBB 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate.	Resolution 2.26 Å R-free 0.238
7ZUS Crystal structure of ternary complex of Pol theta polymerase domain Deposited 2022-05-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain CCC 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate.	Resolution 2.26 Å R-free 0.238
7ZX0 Crystal structure of Pol theta polymerase domain in complex with compound 5 Deposited 2022-05-19	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain AAA 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 K7X 2-[5-bromanyl-3-cyano-6-methyl-4-(trifluoromethyl)pyridin-2-yl]oxy-~{N}-ethyl-~{N}-(3-methylphenyl)ethanamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.99 Å R-free 0.252
7ZX0 Crystal structure of Pol theta polymerase domain in complex with compound 5 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain BBB 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.99 Å R-free 0.252
7ZX0 Crystal structure of Pol theta polymerase domain in complex with compound 5 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain CCC 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.99 Å R-free 0.252
7ZX0 Crystal structure of Pol theta polymerase domain in complex with compound 5 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain DDD 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.99 Å R-free 0.252
7ZX0 Crystal structure of Pol theta polymerase domain in complex with compound 5 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 5 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain EEE 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.99 Å R-free 0.252
7ZX0 Crystal structure of Pol theta polymerase domain in complex with compound 5 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 6 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain FFF 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.99 Å R-free 0.252
7ZX1 Crystal structure of Pol theta polymerase domain in complex with compound 22 Deposited 2022-05-19	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain AAA 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 K8I (2~{S},3~{R})-1-[3-cyano-6-methyl-4-(trifluoromethyl)pyridin-2-yl]-~{N}-methyl-~{N}-(3-methylphenyl)-3-oxidanyl-pyrrolidine-2-carboxamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.83 Å R-free 0.260
7ZX1 Crystal structure of Pol theta polymerase domain in complex with compound 22 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain BBB 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 K8I (2~{S},3~{R})-1-[3-cyano-6-methyl-4-(trifluoromethyl)pyridin-2-yl]-~{N}-methyl-~{N}-(3-methylphenyl)-3-oxidanyl-pyrrolidine-2-carboxamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.83 Å R-free 0.260
7ZX1 Crystal structure of Pol theta polymerase domain in complex with compound 22 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain CCC 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 K8I (2~{S},3~{R})-1-[3-cyano-6-methyl-4-(trifluoromethyl)pyridin-2-yl]-~{N}-methyl-~{N}-(3-methylphenyl)-3-oxidanyl-pyrrolidine-2-carboxamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.83 Å R-free 0.260
7ZX1 Crystal structure of Pol theta polymerase domain in complex with compound 22 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain DDD 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 K8I (2~{S},3~{R})-1-[3-cyano-6-methyl-4-(trifluoromethyl)pyridin-2-yl]-~{N}-methyl-~{N}-(3-methylphenyl)-3-oxidanyl-pyrrolidine-2-carboxamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.83 Å R-free 0.260
7ZX1 Crystal structure of Pol theta polymerase domain in complex with compound 22 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 5 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain EEE 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.83 Å R-free 0.260
7ZX1 Crystal structure of Pol theta polymerase domain in complex with compound 22 Deposited 2022-05-19	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 6 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain FFF 1820–2590（771 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；285 K；15% (w/v) PEG 3350, 0.1 M Bis-Tris propane pH 8.9, 0.2 M sodium citrate tribasic dihydrate	Resolution 2.83 Å R-free 0.260
8E23 Human DNA polymerase theta in complex with allosteric inhibitor Deposited 2022-08-13	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 UAF N-methyl-N-phenyl[(3aM)-3-(trifluoromethyl)cyclopenta[c]pyrazol-2(1H)-yl]ethanethioamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；291 K；18.5 % PEG 3350; 0.2M diammonium tartrate	Resolution 2.59 Å R-free 0.295
8E23 Human DNA polymerase theta in complex with allosteric inhibitor Deposited 2022-08-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain D 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；291 K；18.5 % PEG 3350; 0.2M diammonium tartrate	Resolution 2.59 Å R-free 0.295
8E24 Human DNA polymerase theta in complex with allosteric inhibitor Deposited 2022-08-13	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 UA6 2-[2,4-bis(trifluoromethyl)phenyl]-N-phenyl-N-[3-(pyridazin-3-yl)prop-2-yn-1-yl]acetamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；291 K；16% PEG 3350, 0.2M diammonium tartrate, 2% glycerol	Resolution 2.34 Å R-free 0.266
8E24 Human DNA polymerase theta in complex with allosteric inhibitor Deposited 2022-08-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain D 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 UA6 2-[2,4-bis(trifluoromethyl)phenyl]-N-phenyl-N-[3-(pyridazin-3-yl)prop-2-yn-1-yl]acetamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；291 K；16% PEG 3350, 0.2M diammonium tartrate, 2% glycerol	Resolution 2.34 Å R-free 0.266
8GD7 Loop Deleted DNA Polymerase Theta Polymerase Domain in Complex with Double Strand DNA Overhang and Inhibitor Deposited 2023-03-03	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1819–2590（772 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 Z5X 2-(3-methyl-2-oxoimidazolidin-1-yl)-4,6-bis(trifluoromethyl)phenyl (4-fluorophenyl)methylcarbamate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；291.15 K；0.24 M Sodium citrate, 18% (w/v) PEG 3350, 0.1 M Bis Tris Propane pH 7.5	Resolution 3.24 Å R-free 0.244
8W0A Human DNA polymerase theta helicase domain in complex with ssDNA, dimer form Deposited 2024-02-13	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric	Chain A 1–894（894 aa） Chain C 1–894（894 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9ASJ Human DNA polymerase theta helicase domain in complex with AMP-PNP, dimer form Deposited 2024-02-26	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–894（894 aa） Chain B 1–894（894 aa）	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9ASK Human DNA polymerase theta helicase domain dimer, apo-form Deposited 2024-02-26	Different construct Different oligomeric state Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–894（894 aa） Chain B 1–894（894 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9ASL Human DNA polymerase theta helicase domain tetramer, apo-form Deposited 2024-02-26	Different construct Different mutation/modification Different oligomeric state Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–894（894 aa） Chain B 1–894（894 aa） Chain C 1–894（894 aa） Chain D 1–894（894 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9AU5 Ternary complex of human DNA polymerase theta polymerase domain with a cognate C:G base pair Deposited 2024-02-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1792–2590（799 aa）	Not recorded	DGT 2'-DEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.11 Å
9AU8 Ternary complex of human DNA polymerase theta polymerase domain with a mismatched T:T base pair Deposited 2024-02-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1792–2590（799 aa）	Not recorded	TTP THYMIDINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.44 Å
9AU9 Ternary complex of human DNA polymerase theta polymerase domain with a mismatched T:G base pair Deposited 2024-02-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1792–2590（799 aa）	Not recorded	DGT 2'-DEOXYGUANOSINE-5'-TRIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
9BH6 Human DNA polymerase theta helicase domain tetramer in the apo form Deposited 2024-04-19	Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 2–894（893 aa） Chain B 2–894（893 aa） Chain C 2–894（893 aa） Chain D 2–894（893 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE；3 microliters of sample was applied to the surface of the grid, blotted with Whatman 1 filter paper until 2 seconds after the liquid spot on the filter paper stopped spreading, and the grid was plunged into a liquid ethane pool cooled by liquid nitrogen using a manual plunge freezer.	Resolution 3.30 Å
9BH7 Human DNA polymerase theta helicase domain dimer in the apo form Deposited 2024-04-19	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 2–894（893 aa） Chain B 2–894（893 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE；3 microliters of sample was applied to the surface of the grid, blotted with Whatman 1 filter paper until 2 seconds after the liquid spot on the filter paper stopped spreading, and the grid was plunged into a liquid ethane pool cooled by liquid nitrogen using a manual plunge freezer.	Resolution 3.50 Å
9BH8 Human DNA polymerase theta helicase domain dimer bound to DNA in the microhomology searching conformation Deposited 2024-04-19	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric	Chain A 2–894（893 aa） Chain B 2–894（893 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE；3 microliters of sample was applied to the surface of the grid, blotted with Whatman 1 filter paper until 2 seconds after the liquid spot on the filter paper stopped spreading, and the grid was plunged into a liquid ethane bath cooled by liquid nitrogen.	Resolution 3.60 Å
9BH9 Human DNA polymerase theta helicase domain dimer bound to DNA in the microhomology aligning conformation Deposited 2024-04-19	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric	Chain A 2–894（893 aa） Chain B 2–894（893 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE；3 microliters of sample was applied to the surface of the grid, blotted for 2 seconds after the liquid spot on the filter paper stopped spreading, and the grid was plunged into a liquid ethane bath cooled by liquid nitrogen.	Resolution 3.50 Å
9BHA Human DNA polymerase theta helicase domain dimer bound to DNA in the microhomology annealed conformation Deposited 2024-04-19	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric	Chain A 2–894（893 aa） Chain B 2–894（893 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE；3 microliters of sample was applied to the surface of the grid, blotted with Whatman 1 filter paper until 2 seconds after the liquid spot on the filter paper stopped spreading, and the grid was plunged into a liquid ethane bath cooled by liquid nitrogen.	Resolution 3.50 Å
9BP9 Human DNA polymerase theta helicase domain in complex with inhibitor AB25583, dimer form Deposited 2024-05-07	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–894（894 aa） Chain C 1–894（894 aa）	Not recorded	WCN (4P)-N-{5-[(4-chlorophenyl)methoxy]-1,3,4-thiadiazol-2-yl}-4-(2-methoxyphenyl)pyridine-3-carboxamide × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.21 Å
9BPA Human DNA polymerase theta helicase domain in complex with inhibitor AB25583, tetramer form Deposited 2024-05-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–894（894 aa） Chain C 1–894（894 aa） Chain E 1–894（894 aa） Chain G 1–894（894 aa）	Not recorded	WCN (4P)-N-{5-[(4-chlorophenyl)methoxy]-1,3,4-thiadiazol-2-yl}-4-(2-methoxyphenyl)pyridine-3-carboxamide × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.21 Å
9D6N Loop-Deleted DNA Polymerase Theta in Complex with a dsDNA Overhang and an Allostertic Inhibitor Deposited 2024-08-15	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1819–2590（772 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 A1A2C 2-{3-[(2R)-3-(dimethylamino)-2-hydroxypropyl]-2-oxoimidazolidin-1-yl}-4,6-bis(trifluoromethyl)phenyl (4-fluorophenyl)(methyl)carbamate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277.15 K；0.1M Bis Tris Propane pH 7.5, 16% PEG 3350, 0.23M Sodium Citrate	Resolution 2.43 Å R-free 0.237
9D6N Loop-Deleted DNA Polymerase Theta in Complex with a dsDNA Overhang and an Allostertic Inhibitor Deposited 2024-08-15	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain B 1819–2590（772 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 A1A2C 2-{3-[(2R)-3-(dimethylamino)-2-hydroxypropyl]-2-oxoimidazolidin-1-yl}-4,6-bis(trifluoromethyl)phenyl (4-fluorophenyl)(methyl)carbamate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277.15 K；0.1M Bis Tris Propane pH 7.5, 16% PEG 3350, 0.23M Sodium Citrate	Resolution 2.43 Å R-free 0.237
9D6O Loop-Deleted DNA Polymerase Theta Polymerase Domain in Complex with a dsDNA Overhang and an Allosteric Inhibitor Deposited 2024-08-15	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1819–2590（772 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 A1A2D 2-[3-(2-hydroxyethyl)-2-oxoimidazolidin-1-yl]-4,6-bis(trifluoromethyl)phenyl (4-fluorophenyl)(methyl)carbamate × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277.15 K；0.1M Bis Tris Propane pH 7.5, 18% (w/v) PEG 3350, 0.29M Sodium Tartrate	Resolution 3.31 Å R-free 0.234
9OSW Tetrameric POLQ Helicase-like Domain Bound to Cmpd 19, a Small-Molecule ATPase Inhibitor and Drug Candidate Analog Deposited 2025-05-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–904（904 aa） Fragment：N-terminal domain Chain B 1–904（904 aa） Fragment：N-terminal domain Chain C 1–904（904 aa） Fragment：N-terminal domain Chain D 1–904（904 aa） Fragment：N-terminal domain	Not recorded	A1CER (3M)-2'-chloro-N-{5-[(1S,2S)-2-(4-cyanophenyl)cyclopropyl]-1,3,4-thiadiazol-2-yl}-5'-methoxy[3,4'-bipyridine]-4-carboxamide × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 300 mM NaCl, 1 mM TCEP, 5% glycerol cryo-EM vitrification conditions Cryogen ETHANE；3 microL drop of sample suspension is applied to an EM grid that has been plasma-cleaned using a Gatan Solarus. After blotting the sample away with filter paper, grids are plunge-frozen in liquid ethane. Grids are stored under liquid nitrogen until transferred to the transmission electron microscope for imaging.	Resolution 2.67 Å
9OSY Tetrameric POLQ Helicase-like Domain Bound to Cmpd 36, a Small-Molecule ATPase Inhibitor and Drug Candidate Analog Deposited 2025-05-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–904（904 aa） Fragment：N-terminal domain Chain B 1–904（904 aa） Fragment：N-terminal domain Chain C 1–904（904 aa） Fragment：N-terminal domain Chain D 1–904（904 aa） Fragment：N-terminal domain	Not recorded	A1CEQ (2P)-N-[5-(cyclopropylethynyl)-1,3,4-thiadiazol-2-yl]-2-[2-(difluoromethyl)-5-methoxypyridin-4-yl]-4-[(4-hydroxyoxan-4-yl)ethynyl]benzamide × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 300 mM NaCl, 1 mM TCEP, 5% glycerol cryo-EM vitrification conditions Cryogen ETHANE；3 microL drop of sample suspension is applied to an EM grid that has been plasma-cleaned using a Gatan Solarus. After blotting the sample away with filter paper, grids are plunge-frozen in liquid ethane. Grids are stored under liquid nitrogen until transferred to the transmission electron microscope for imaging.	Resolution 2.90 Å
9YSH Allosteric inhibitor of human DNA polymerase theta Deposited 2025-10-18	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 A1CZX N-(4-{2-[2,4-bis(trifluoromethyl)phenyl]-N-phenylacetamido}but-2-yn-1-yl)pyridine-3-carboxamide × 2 GOL GLYCEROL × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；14% PEG 3350, 200 mM sodium-potassium tartrate, 6% glycerol, 0.02% sucrose monolaurate, and 20 mM spermine tetrahydrochloride	Resolution 2.71 Å R-free 0.251
9YSH Allosteric inhibitor of human DNA polymerase theta Deposited 2025-10-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain D 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 A1CZX N-(4-{2-[2,4-bis(trifluoromethyl)phenyl]-N-phenylacetamido}but-2-yn-1-yl)pyridine-3-carboxamide × 1 GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；14% PEG 3350, 200 mM sodium-potassium tartrate, 6% glycerol, 0.02% sucrose monolaurate, and 20 mM spermine tetrahydrochloride	Resolution 2.71 Å R-free 0.251
9YSI Covalent allosteric inhibitor of human DNA polymerase theta Deposited 2025-10-18	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 Monomer；Protein × 1 PDB declaration: trimeric	Chain A 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 2 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 CL CHLORIDE ION × 3 GOL GLYCEROL × 3 A1CZ4 N-(4-{2-[2,4-bis(trifluoromethyl)phenyl]-N-phenylacetamido}but-2-yn-1-yl)-2-(ethanesulfonamido)benzamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；22% PEG 3350, 200 mM sodium-potassium tartrate, 3% glycerol, 0.02% sucrose monolaurate, and 20 mM spermine tetrahydrochloride	Resolution 2.00 Å R-free 0.211
9YSI Covalent allosteric inhibitor of human DNA polymerase theta Deposited 2025-10-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric	Chain D 1818–2590（773 aa）	Not recorded	MG MAGNESIUM ION × 1 DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE × 1 GOL GLYCEROL × 2 A1CZ4 N-(4-{2-[2,4-bis(trifluoromethyl)phenyl]-N-phenylacetamido}but-2-yn-1-yl)-2-(ethanesulfonamido)benzamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；22% PEG 3350, 200 mM sodium-potassium tartrate, 3% glycerol, 0.02% sucrose monolaurate, and 20 mM spermine tetrahydrochloride	Resolution 2.00 Å R-free 0.211

32 other PDB entries and 57 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	DPOLQ_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain A； PDBConstruct 1–824； UniProt 68–891 Author chain C； PDBConstruct 1–824； UniProt 68–891

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	9c5q
Deposition date deposition_date	2024-06-06
Structure title title	Human DNA polymerase theta helicase domain in microhomology annealed state 2, dimer form
Keywords keywords	DNA repair, helicase, ATPase, TRANSFERASE-DNA complex; TRANSFERASE/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	43.57 Å
Radius of gyration Rg (electron density) rg_electron	44.12 Å
Forward intensity I(0) i0	458719000.00
Molecular weight molecular_weight	175890.0 kDa
Excluded volume excluded_volume	220540 Å³
Envelope volume envelope_volume	322460 Å³
Hydration-shell volume shell_volume	62782 Å³
Envelope diameter envelope_diameter	155.4 Å
Shell Rg shell_rg	46.88 Å
Envelope Rg envelope_rg	43.32 Å
Shape Rg shape_rg	44.13 Å
Total Rg total_rg	44.21 Å
Total atoms total_atoms	12324
Residues n_residues	1578
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	146.8 Å
Rg (real space) rg_real	43.80 Å
Rg uncertainty (real space) rg_real_error	1.34 Å
I(0) (real space) i0_real	4.5870e+08
I(0) uncertainty (real space) i0_real_error	8.0110e+06
Rg (reciprocal space) rg_reciprocal	43.58 Å
I(0) (reciprocal space) i0_reciprocal	458600000.0000
Solution quality estimate total_estimate	0.8445
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	44.9 Å
Skewness Skewness skewness	0.513
Kurtosis Kurtosis kurtosis	-0.219
Angular range angular_range	— – 0.1800 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	91930000.0000
Real-space data points n_real_points	37
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.819; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.963; Smooth: 0.554

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Description description	;DNA (5'-D(PTPTPTPTPTPTPTPTPCPCPCPGPGPG)-3') ;
Molecular weight formula_weight	4243.7 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	D,B
Atom count atom_count	12324

TTTTTTTTCCCGGG

Entity 2 Entity 2 polymer

Description description	DNA polymerase theta
Molecular weight formula_weight	92089.8 kDa
EC 编号 ec_number	3.6.4.12,2.7.7.7,2.7.7.49
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

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

KLLLANWGLPKAVLEKYHSFGVKKMFEWQAECLLLGQVLEGKNLVYSAPTSAGKTLVAELLILKRVLEMRKKALFILPFVSVAKEKKYYLQSLFQEVGIKVDGYMGSTSPSRHFSSLDIAVCTIERANGLINRLIEENKMDLLGMVVVDELHMLGDSHRGYLLELLLTKICYITRKSASCQADLASSLSNAVQIVGMSATLPNLELVASWLNAELYHTDFRPVPLLESVKVGNSIYDSSMKLVREFEPMLQVKGDEDHVVSLCYETICDNHSVLLFCPSKKWCEKLADIIAREFYNLHHQAEGLVKPSECPPVILEQKELLEVMDQLRRLPSGLDSVLQKTVPWGVAFHHAGLTFEERDIIEGAFRQGLIRVLAATSTLSSGVNLPARRVIIRTPIFGGRPLDILTYKQMVGRAGRKGVDTVGESILICKNSEKSKGIALLQGSLKPVRSCLQRREGEEVTGSMIRAILEIIVGGVASTSQDMHTYAACTFLAASMKEGKQGIQRNQESVQLGAIEACVMWLLENEFIQSTEASDGTEGKVYHPTHLGSATLSSSLSPADTLDIFADLQRAMKGFVLENDLHILYLVTPMFEDWTTIDWYRFFCLWEKLPTSMKRVAELVGVEEGFLARCVAAAAAAAAAAQHRQMAIHKRFFTSLVLLDLISEVPLREINQKYGCNRGQIQSLQQSAAVYAGMITVFSNRLGWHNMELLLSQFQKRLTFGIQRELCDLVRVSLLNAQRARVLYASGFHTVADLARANIVEVEVILKNAVPFKSARKAVDEEEEAVEERRNMRTIWVTGRKGLTEREAAALIVEEARMILQQDL

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

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8. Citations (2)

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Resolution resolution	3.10 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	78928

fit	/app/data/saxs_computation/c5/9c5q/9c5q.fit
pddf	/app/data/pr_computation/c5/9c5q/9c5q.pr.out
profile	/app/data/saxs_computation/c5/9c5q/9c5q.dat

Human DNA polymerase theta helicase domain in microhomology annealed state 2, dimer form

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

DNA polymerase theta

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

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

8. Citations (2)

9. Files and Curves (10)

Files (7)

Curves (3)