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4EPV

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)
PubChem (136073927)
PubChem (135398619)
PubChem (135402030)
PubChem (135431654)
PubChem (135566337)
PubChem (135760556)
PubChem (136026707)
PubChem (136053418)
PubChem (136663964)
PubChem (136664748)
PubChem (136759848)
PubChem (136759849)
PubChem (136759850)
PubChem (136836636)
PubChem (136847074)
PubChem (172898537)
3C
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
PubChem (888)
4D
(A)
2-(1H-indol-3-ylmethyl)-1H-imidazo[4,5-c]pyridinenon-polymer248.31Chemie (0QX)
5E
(A)
waterwater18.0236Chemie (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 weight715.8
All*Total formula weight20028.5
*Water molecules are not included.

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PDB entries from 2026-04-01

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