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9RFB

Crystal Structure of Human Rac1 in Complex with the Scaffold Protein POSH (residues 321-348)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
Ras-related C3 botulinum toxin substrate 1polymer18020158.32UniProt (P63000)Homo sapiens (human)Cell migration-inducing gene 5 protein,Ras-like protein TC25,p21-Rac1
2C, D
(C, D)
E3 ubiquitin-protein ligase SH3RF1polymer282911.32UniProt (Q7Z6J0)Homo sapiensPlenty of SH3s,Protein POSH,RING finger protein 142,RING-type E3 ubiquitin transferase SH3RF1,SH3 domain-containing RING finger protein 1,SH3 multiple domains protein 2
3E, G
(A, B)
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTERnon-polymer522.22Chemie (GNP)
4F, H
(A, B)
MAGNESIUM IONnon-polymer24.32Chemie (MG)
5I, J
(B)
PHOSPHATE IONnon-polymer95.02Chemie (PO4)
6K
(B)
CHLORIDE IONnon-polymer35.51Chemie (CL)
7L, M, N, O
(A, B, C, D)
waterwater18.0390Chemie (HOH)
Sequence modifications
A, B: 1 - 177 (UniProt: P63000)
PDBExternal DatabaseDetails
Gly -2-expression tag
Arg -1-expression tag
Arg 0-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight46139.2
Non-Polymers*Number of molecules7
Total formula weight1318.4
All*Total formula weight47457.6
*Water molecules are not included.

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PDB entries from 2025-12-03

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