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4B9N

Structure of the high fidelity DNA polymerase I correctly bypassing the oxidative formamidopyrimidine-dA DNA lesion.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
DNA POLYMERASEpolymer61970446.61UniProt (E1C9K5)
Pfam (PF22619)
Pfam (PF00476)
GEOBACILLUS STEAROTHERMOPHILUS
2B
(B)
5'-D(*GP*CP*CP*TP*GP*AP*CP*TP*CP*TP*TP*TP*TP)-3'polymer133908.51GEOBACILLUS STEAROTHERMOPHILUS
3C
(C)
5'-D(*CP*AP*AP*(FAX)*AP*GP*AP*GP*TP*CP*AP*GP*GP*CP*TP)-3'polymer154643.11GEOBACILLUS STEAROTHERMOPHILUS
4D
(D)
beta-D-fructofuranose-(2-1)-alpha-D-glucopyranosebranched342.31In PDB
BIRD (PRD_900003)
sucrose
5E, F, G, H, I
(A)
SULFATE IONnon-polymer96.15Chemie (SO4)
6J
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
7K, L, M
(A, B, C)
waterwater18.0241Chemie (HOH)
Sequence modifications
A: 297 - 876 (UniProt: E1C9K5)
PDBExternal DatabaseDetails
Met 258-expression tag
Ala 259-expression tag
Ser 260-expression tag
Trp 261-expression tag
Ser 262-expression tag
His 263-expression tag
Pro 264-expression tag
Gln 265-expression tag
Phe 266-expression tag
Glu 267-expression tag
Lys 268-expression tag
Gly 269-expression tag
Ala 270-expression tag
Ser 271-expression tag
Thr 272-expression tag
Ser 273-expression tag
Leu 274-expression tag
Tyr 275-expression tag
Lys 276-expression tag
Lys 277-expression tag
Ala 278-expression tag
Gly 279-expression tag
Ser 280-expression tag
Ala 281-expression tag
Ala 282-expression tag
Ala 283-expression tag
Val 284-expression tag
Leu 285-expression tag
Glu 286-expression tag
Glu 287-expression tag
Asn 288-expression tag
Leu 289-expression tag
Tyr 290-expression tag
Phe 291-expression tag
Gln 292-expression tag
Gly 293-expression tag
Ser 294-expression tag
Phe 295-expression tag
Thr 296-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight78998.2
BranchedNumber of molecules1
Total formula weight342.3
Non-Polymers*Number of molecules6
Total formula weight504.6
All*Total formula weight79845.1
*Water molecules are not included.

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PDB entries from 2025-06-18

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