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3W8Q

Structure of the Human Mitogen-Activated Protein Kinase Kinase 1 (MEK1)

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
Functional Information from PDB Data
site_idAC1
Number of Residues28
DetailsBINDING SITE FOR RESIDUE AGS A 401
ChainResidue
AALA76
AGLU144
AMET146
ASER150
AGLN153
ASER194
AASN195
ALEU197
ACYS207
AASP208
APHE209
AGLY77
AGLY210
AVAL211
ASER212
AHOH504
AHOH505
AHOH506
AHOH531
AHOH545
AHOH548
AASN78
AGLY79
AVAL82
AALA95
ALYS97
AVAL127
AMET143

Functional Information from PROSITE/UniProt
site_idPS00107
Number of Residues24
DetailsPROTEIN_KINASE_ATP Protein kinases ATP-binding region signature. LGAGNGGVVFkVshkpsglv..........MARK
ChainResidueDetails
ALEU74-LYS97

site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. ImHrDVKpsNILV
ChainResidueDetails
AILE186-VAL198

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"},{"source":"PROSITE-ProRule","id":"PRU10027","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues18
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"15543157","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"17880056","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"18951019","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19019675","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19706763","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"21310613","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"19161339","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3EQH","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"19161339","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3EQF","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine; by BRAF and RAF1","evidences":[{"source":"PubMed","id":"10409742","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"20956560","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"29433126","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8131746","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine; by BRAF and RAF1","evidences":[{"source":"PubMed","id":"20956560","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"29433126","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8131746","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247947

PDB entries from 2026-01-21

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