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9RBO

A cryo-EM structure of native C3 protein in a compact conformation.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Complement C3 beta chainpolymer19622051.11UniProt (P01024)Homo sapiens (human)
2B
(B)
Complement C3 beta chainpolymer31634775.61UniProt (P01024)Homo sapiens (human)
3C
(C)
Acylation stimulating proteinpolymer495892.91UniProt (P01024)Homo sapiens (human)ASP,C3adesArg
4D
(D)
Complement C3b alpha' chainpolymer902102616.71UniProt (P01024)Homo sapiens (human)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight165336.3
All*Total formula weight165336.3
*Water molecules are not included.

254917

PDB entries from 2026-06-10

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