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2QKK

Human RNase H catalytic domain mutant D210N in complex with 14-mer RNA/DNA hybrid

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, C, E, G, I...
(C, G, K, O, T...)
5'-R(*CP*GP*AP*CP*AP*CP*CP*UP*GP*AP*UP*UP*CP*C)-3'polymer144382.76
2B, D, F, H, J...
(D, H, L, P, U...)
5'-D(*GP*GP*AP*AP*TP*CP*AP*GP*GP*TP*GP*TP*CP*G)-3'polymer144360.86
3M, N, O, P, Q...
(A, B, E, F, I...)
Ribonuclease H1polymer15417104.311UniProt (O60930)
Pfam (PF00075)
Homo sapiens (human)Hs-RNase HC; RNase H1; Ribonuclease H type II
4X
(D)
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOLnon-polymer122.11Chemie (TRS)
5BA, DA, EA, FA, GA...
(B, E, F, I, J...)
CALCIUM IONnon-polymer40.114Chemie (CA)
6AA
(A)
2-(N-MORPHOLINO)-ETHANESULFONIC ACIDnon-polymer195.21Chemie (MES)
7CA
(B)
CHLORIDE IONnon-polymer35.51Chemie (CL)
8AB, BB, CB, DB, EB...
(A, B, E, F, I...)
waterwater18.0172Chemie (HOH)
Sequence modifications
A, B, E, F, I, J, M, N, R, S, W: 136 - 286 (UniProt: O60930)
PDBExternal DatabaseDetails
Gly 133-expression tag
Ser 134-expression tag
His 135-expression tag
Asn 210Asp 210engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains23
Total formula weight240608.1
Non-Polymers*Number of molecules17
Total formula weight913.9
All*Total formula weight241522.0
*Water molecules are not included.

239149

PDB entries from 2025-07-23

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