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9NPU

Pre-catalytic ternary complex of DNA Polymerase Lambda with bound 1-nt gapped SSB substrate containing template ribonucleotide opposite primer terminus, and incoming dUMPNPP

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
DNA polymerase lambdapolymer34638551.01UniProt (Q9UGP5)
Pfam (PF14716)
Pfam (PF10391)
Pfam (PF14792)
Pfam (PF14791)
Homo sapiens (human)Pol Lambda,DNA polymerase beta-2,Pol beta2,DNA polymerase kappa
2B
(T)
DNA/RNA (5'-D(*CP*GP*GP*CP*A)-R(P*G)-D(P*TP*AP*CP*TP*G)-3')polymer113390.21synthetic construct
3C
(P)
DNA (5'-D(*CP*AP*GP*TP*AP*C)-3')polymer61793.21synthetic construct
4D
(D)
DNA (5'-D(P*GP*CP*CP*G)-3')polymer41191.81synthetic construct
5E, F
(A)
SULFATE IONnon-polymer96.12Chemie (SO4)
6G
(A)
GLYCEROLnon-polymer92.11Chemie (GOL)
7H
(A)
2'-DEOXYURIDINE 5'-ALPHA,BETA-IMIDO-TRIPHOSPHATEnon-polymer467.21Chemie (DUP)
8I, J
(A)
MAGNESIUM IONnon-polymer24.32Chemie (MG)
9K
(A)
SODIUM IONnon-polymer23.01Chemie (NA)
10L
(A)
CHLORIDE IONnon-polymer35.51Chemie (CL)
11M, N, O, P
(A, T, P, D)
waterwater18.0265Chemie (HOH)
Sequence modifications
A: 234 - 575 (UniProt: Q9UGP5)
PDBExternal DatabaseDetails
Gly 230-expression tag
Ser 231-expression tag
Ala 232-expression tag
Ala 233-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight44926.2
Non-Polymers*Number of molecules8
Total formula weight858.4
All*Total formula weight45784.6
*Water molecules are not included.

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PDB entries from 2026-02-11

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