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4EPW

Discovery of Small Molecules that Bind to K-Ras and Inhibit Sos-mediated Activation

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, GTPase KRas, N-terminally processed
2B
(A)
GUANOSINE-5'-DIPHOSPHATEnon-polymer443.21Chemie (GDP)
3C
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
4D
(A)
(4-hydroxypiperidin-1-yl)(1H-indol-3-yl)methanethionenon-polymer260.41Chemie (0QV)
5E
(A)
waterwater18.0162Chemie (HOH)
Sequence modifications
A: 1 - 169 (UniProt: P01116)
PDBExternal DatabaseDetails
Gly 0-expression tag
Ser 118Cys 118engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight19312.7
Non-Polymers*Number of molecules3
Total formula weight727.9
All*Total formula weight20040.6
*Water molecules are not included.

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PDB entries from 2025-06-25

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