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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：O75417 New Search
33PDB entries
58Biological assembly
87chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method 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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 4 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Other combination Homooligomer；Protein × 2 PDB declaration: hexameric（6） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 4 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 5 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 6 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 3 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 4 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 5 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 6 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
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 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
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 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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
9C5Q Human DNA polymerase theta helicase domain in microhomology annealed state 2, dimer form Deposited 2024-06-06 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 68–891（824 aa）
Chain C 68–891（824 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9D6N Loop-Deleted DNA Polymerase Theta in Complex with a dsDNA Overhang and an Allostertic Inhibitor Deposited 2024-08-15 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 1 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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 Assembly 2 Protein–DNA Monomer；Protein × 1 PDB declaration: trimeric（3） Consistent with all polymers
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

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.