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4LPK

Crystal Structure of K-Ras WT, GDP-bound

Functional Information from GO Data
ChainGOidnamespacecontents
A0003924molecular_functionGTPase activity
A0005525molecular_functionGTP binding
A0007165biological_processsignal transduction
A0016020cellular_componentmembrane
B0003924molecular_functionGTPase activity
B0005525molecular_functionGTP binding
B0007165biological_processsignal transduction
B0016020cellular_componentmembrane
Functional Information from PDB Data
site_idAC1
Number of Residues23
DetailsBINDING SITE FOR RESIDUE GDP A 201
ChainResidue
AGLY13
AASN116
ALYS117
AASP119
ALEU120
ASER145
AALA146
ALYS147
ACA202
AHOH302
AHOH315
AVAL14
AHOH322
AHOH341
AHOH353
AHOH392
AGLY15
ALYS16
ASER17
AALA18
APHE28
AVAL29
AASP30

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 202
ChainResidue
ASER17
AGDP201
AHOH302
AHOH305
AHOH306
AHOH322

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE NA A 203
ChainResidue
AGLU37
AALA59
AHOH321
AHOH328
AHOH363

site_idAC4
Number of Residues25
DetailsBINDING SITE FOR RESIDUE GDP B 201
ChainResidue
BGLY12
BGLY13
BVAL14
BGLY15
BLYS16
BSER17
BALA18
BPHE28
BVAL29
BASP30
BASN116
BLYS117
BASP119
BLEU120
BSER145
BALA146
BLYS147
BCA202
BHOH307
BHOH312
BHOH313
BHOH349
BHOH361
BHOH367
BHOH379

site_idAC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA B 202
ChainResidue
BSER17
BGDP201
BHOH307
BHOH309
BHOH310
BHOH312

site_idAC6
Number of Residues6
DetailsBINDING SITE FOR RESIDUE NA B 203
ChainResidue
BHOH337
BHOH337
BHOH337
BHOH370
BHOH370
BHOH370

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues16
DetailsMotif: {"description":"Effector region"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues36
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"22431598","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"22566140","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"34380736","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"35522713","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsModified residue: {"description":"N-acetylmethionine; in GTPase KRas; alternate","evidences":[{"source":"Reference","evidenceCode":"ECO:0000269","citation":{"citationType":"submission","publicationDate":"FEB-2008","submissionDatabase":"UniProtKB","authors":["Bienvenut W.V.","Calvo F.","Kolch W."]}}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"N-acetylthreonine; in GTPase KRas, N-terminally processed","evidences":[{"source":"Reference","evidenceCode":"ECO:0000269","citation":{"citationType":"submission","publicationDate":"FEB-2008","submissionDatabase":"UniProtKB","authors":["Bienvenut W.V.","Calvo F.","Kolch W."]}}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"22711838","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsGlycosylation: {"description":"(Microbial infection) O-linked (Glc) threonine; by P.sordellii toxin TcsL","evidences":[{"source":"PubMed","id":"19744486","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

239492

PDB entries from 2025-07-30

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