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3IQO

1.5 angstrom X-ray structure of bovine Ca(2+)-S100B

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
Protein S100-Bpolymer9210682.02UniProt (P02638)
Pfam (PF01023)
Pfam (PF00036)
Bos taurus (bovine cow domestic cattle domestic cow)S100 calcium-binding protein B, S-100 protein subunit beta, S-100 protein beta chain
2C, D, E, F
(A, B)
CALCIUM IONnon-polymer40.14Chemie (CA)
3G, H
(A, B)
waterwater18.0143Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight21363.9
Non-Polymers*Number of molecules4
Total formula weight160.3
All*Total formula weight21524.3
*Water molecules are not included.

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PDB entries from 2025-08-06

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