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5EXR

Crystal structure of human primosome

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, E
(A, E)
DNA primase small subunitpolymer42049981.02UniProt (P49642)
Pfam (PF01896)
Homo sapiens (Human)DNA primase 49 kDa subunit,p49
2B, F
(B, F)
DNA primase large subunitpolymer50958890.92UniProt (P49643)
Pfam (PF04104)
Homo sapiens (Human)DNA primase 58 kDa subunit,p58
3C, G
(C, G)
DNA polymerase alpha catalytic subunitpolymer1128129308.82UniProt (P09884)
Pfam (PF03104)
Pfam (PF00136)
Pfam (PF08996)
Homo sapiens (Human)DNA polymerase alpha catalytic subunit p180
4D, H
(D, H)
DNA polymerase alpha subunit Bpolymer59765884.32UniProt (Q14181)
Pfam (PF08418)
Pfam (PF22062)
Pfam (PF04042)
Homo sapiens (Human)DNA polymerase alpha 70 kDa subunit
5I, K, L, M, O...
(A, C, E, G)
ZINC IONnon-polymer65.46Chemie (ZN)
6J, N
(B, F)
IRON/SULFUR CLUSTERnon-polymer351.62Chemie (SF4)
Sequence modifications
C, G: 335 - 1462 (UniProt: P09884)
PDBExternal DatabaseDetails
Ala 516Val 516engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains8
Total formula weight608130.1
Non-Polymers*Number of molecules8
Total formula weight1095.7
All*Total formula weight609225.8
*Water molecules are not included.

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PDB entries from 2025-06-11

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