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9IB5

Structure of 18 (BI-2493) in complex with GDP-KRAS

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
GTPase KRaspolymer17019312.71UniProt (P01116)
Pfam (PF00071)
Homo sapiens (human)K-Ras 2,Ki-Ras,c-K-ras,c-Ki-ras
2B
(A)
GUANOSINE-5'-DIPHOSPHATEnon-polymer443.21Chemie (GDP)
3C
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
4D
(A)
1,2-ETHANEDIOLnon-polymer62.11Chemie (EDO)
5E
(A)
(7~{S})-2'-azanyl-3-[2-[(2~{S})-2-methylpiperazin-1-yl]pyrimidin-4-yl]spiro[5,6-dihydro-4~{H}-1,2-benzoxazole-7,4'-6,7-dihydro-5~{H}-1-benzothiophene]-3'-carbonitrilenon-polymer461.61Chemie (VU6)
6F
(A)
waterwater18.0254Chemie (HOH)
Sequence modifications
A: 1 - 164 (UniProt: P01116)
PDBExternal DatabaseDetails
Gly 0-expression tag
Ser 118Cys 118engineered mutation
Gly 151Arg 151engineered mutation
Asp 153Glu 153engineered mutation
Lys 165-expression tag
His 166-expression tag
Lys 167-expression tag
Glu 168-expression tag
Lys 169-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight19312.7
Non-Polymers*Number of molecules4
Total formula weight991.2
All*Total formula weight20303.9
*Water molecules are not included.

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PDB entries from 2025-11-05

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