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6W3C

Structure of phosphorylated apo IRE1

Functional Information from GO Data
ChainGOidnamespacecontents
A0004521molecular_functionRNA endonuclease activity
A0004540molecular_functionRNA nuclease activity
A0004672molecular_functionprotein kinase activity
A0004674molecular_functionprotein serine/threonine kinase activity
A0005524molecular_functionATP binding
A0006397biological_processmRNA processing
A0006468biological_processprotein phosphorylation
A0030968biological_processendoplasmic reticulum unfolded protein response
B0004521molecular_functionRNA endonuclease activity
B0004540molecular_functionRNA nuclease activity
B0004672molecular_functionprotein kinase activity
B0004674molecular_functionprotein serine/threonine kinase activity
B0005524molecular_functionATP binding
B0006397biological_processmRNA processing
B0006468biological_processprotein phosphorylation
B0030968biological_processendoplasmic reticulum unfolded protein response
C0004521molecular_functionRNA endonuclease activity
C0004540molecular_functionRNA nuclease activity
C0004672molecular_functionprotein kinase activity
C0004674molecular_functionprotein serine/threonine kinase activity
C0005524molecular_functionATP binding
C0006397biological_processmRNA processing
C0006468biological_processprotein phosphorylation
C0030968biological_processendoplasmic reticulum unfolded protein response
D0004521molecular_functionRNA endonuclease activity
D0004540molecular_functionRNA nuclease activity
D0004672molecular_functionprotein kinase activity
D0004674molecular_functionprotein serine/threonine kinase activity
D0005524molecular_functionATP binding
D0006397biological_processmRNA processing
D0006468biological_processprotein phosphorylation
D0030968biological_processendoplasmic reticulum unfolded protein response
Functional Information from PROSITE/UniProt
site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. IvHrDLKphNILI
ChainResidueDetails
AILE684-ILE696

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsRegion: {"description":"Interacts with hydroxy-aryl-aldehyde inhibitors","evidences":[{"source":"UniProtKB","id":"Q9EQY0","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"UniProtKB","id":"P32361","evidenceCode":"ECO:0000250"},{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"},{"source":"PROSITE-ProRule","id":"PRU10027","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues32
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P32361","evidenceCode":"ECO:0000250"},{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"21317875","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9637683","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3P23","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues24
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"21317875","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3P23","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues4
DetailsSite: {"description":"Interacts with hydroxy-aryl-aldehyde inhibitors","evidences":[{"source":"UniProtKB","id":"Q9EQY0","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues4
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"30118681","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"36739529","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues4
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"30118681","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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