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3SV3

Crystal structure of the large fragment of DNA polymerase I from Thermus Aquaticus in a closed ternary complex with the artificial base pair dNaM-d5SICSTP

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
DNA polymerase I, thermostablepolymer54060937.01UniProt (P19821)
Pfam (PF09281)
Pfam (PF00476)
Thermus aquaticusTaq polymerase 1
2B
(B)
(5'-D(*GP*AP*CP*CP*AP*CP*GP*GP*CP*GP*CP*(DOC))-3')polymer123617.41
3C
(C)
(5'-D(*AP*AP*AP*(BMN)P*GP*GP*CP*GP*CP*CP*GP*TP*GP*GP*TP*C)-3')polymer164971.31
4D, E
(A)
2-{2-deoxy-5-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]oxy}phosphoryl]-beta-D-erythro-pentofuranosyl}-6-methylisoquinoline-1(2H)-thionenon-polymer531.32Chemie (5SI)
5F, K, L, Q, W
(A, B)
MAGNESIUM IONnon-polymer24.35Chemie (MG)
6CA, G, H, X
(C, A)
GLYCEROLnon-polymer92.14Chemie (GOL)
7AA, BA, DA, I, J...
(C, A)
FORMIC ACIDnon-polymer46.016Chemie (FMT)
8EA, FA, GA
(A, B, C)
waterwater18.0241Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight69525.6
Non-Polymers*Number of molecules27
Total formula weight2288.9
All*Total formula weight71814.5
*Water molecules are not included.

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PDB entries from 2025-12-24

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