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2PFN

Na in the active site of DNA Polymerase lambda

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(T)
Templatepolymer113374.21
2B
(P)
Primerpolymer61793.21
3C
(D)
Downstream Primerpolymer41191.81
4D
(A)
DNA polymerase lambdapolymer33537447.71UniProt (Q9UGP5)
Pfam (PF14716)
Pfam (PF10391)
Pfam (PF14792)
Pfam (PF14791)
Homo sapiens (human)Pol Lambda, DNA polymerase kappa, DNA polymerase beta-2, Pol beta2
5E, G, H, I, J
(P, A)
SODIUM IONnon-polymer23.05Chemie (NA)
6F
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
7K
(A)
2'-DEOXYURIDINE 5'-ALPHA,BETA-IMIDO-TRIPHOSPHATEnon-polymer467.21Chemie (DUP)
8L, M, N, O
(T, P, D, A)
waterwater18.0307Chemie (HOH)
Sequence modifications
A: 242 - 575 (UniProt: Q9UGP5)
PDBExternal DatabaseDetails
Met 241-initiating methionine
Ala 543Cys 543engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight43806.9
Non-Polymers*Number of molecules7
Total formula weight606.4
All*Total formula weight44413.3
*Water molecules are not included.

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PDB entries from 2025-07-09

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