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3KEX

Crystal structure of the catalytically inactive kinase domain of the human epidermal growth factor receptor 3 (HER3)

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
B0004672molecular_functionprotein kinase activity
B0005524molecular_functionATP binding
B0006468biological_processprotein phosphorylation
Functional Information from PDB Data
site_idAC1
Number of Residues20
DetailsBINDING SITE FOR RESIDUE ANP A 1
ChainResidue
AHOH18
ACYS721
ALYS723
AGLN769
ATYR770
ALEU771
AASN815
AARG819
AASN820
ALEU822
AASP833
AHOH27
AMG1001
ALEU696
AGLY697
ASER698
AGLY699
AVAL700
AGLY702
AVAL704

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG A 1001
ChainResidue
AANP1
AHOH17
AASN820
AASP833

site_idAC3
Number of Residues21
DetailsBINDING SITE FOR RESIDUE ANP B 2
ChainResidue
BHOH22
BHOH25
BHOH34
BLEU696
BGLY697
BSER698
BGLY699
BVAL700
BGLY702
BVAL704
BCYS721
BLYS723
BGLN769
BTYR770
BLEU771
BASN815
BARG819
BASN820
BLEU822
BASP833
BMG1001

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG B 1001
ChainResidue
BANP2
BHOH21
BHOH22
BASN820
BASP833

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues32
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AARG819
AASN815

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BARG819
BASN815

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PDB entries from 2025-12-17

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