Structure of PDB 6w3a Chain B

Receptor sequence
>6w3aB (length=371) Species: 9606 (Homo sapiens) [Search protein sequence]
SVVIVGKISFCPKDVLGHGTIVYRGMFDNRDVAVKRILPECFSFADREVQ
LLRESDEHPNVIRYFCTEKDRQFQYIAIELCAATLQEYVEQDFAHLGLEP
ITLLQQTTSGLAHLHSLNIVHRDLKPHNILISMPNAHGKIKAMISDFGLC
GTEGWIAPEMLSENPTYTVDIFSAGCVFYYVISEGSHPFGKSLQRQANIL
LGACSLDCLHPEKHEDVIARELIEKMIAMDPQKRPSAKHVLKHPFFWSLE
KQLQFFQDVSDRIEKESLDGPIVKQLERGGRAVVKMDWRENITVPLQTDK
GGSVRDLLRAMRNKKHHYRELPAEVRETLGSLPDDFVCYFTSRFPHLLAH
TYRAMELCSHERLFQPYYFHE
3D structure
PDB6w3a Activation of the IRE1 RNase through remodeling of the kinase front pocket by ATP-competitive ligands.
ChainB
Resolution2.606 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D688 K690 N693 D711 T734
Catalytic site (residue number reindexed from 1) D123 K125 N128 D146 T152
Enzyme Commision number 2.7.11.1: non-specific serine/threonine protein kinase.
3.1.26.-
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 SJM B V586 A597 K599 E612 L616 I642 C645 A646 E651 H692 S710 D711 V22 A33 K35 E48 L52 I78 C81 A82 E87 H127 S145 D146
Gene Ontology
Molecular Function
GO:0004521 RNA endonuclease activity
GO:0004540 RNA nuclease activity
GO:0004672 protein kinase activity
GO:0004674 protein serine/threonine kinase activity
GO:0005524 ATP binding
Biological Process
GO:0006397 mRNA processing
GO:0006468 protein phosphorylation
GO:0030968 endoplasmic reticulum unfolded protein response

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Molecular Function
View graph for
Biological Process
External links
PDB RCSB:6w3a, PDBe:6w3a, PDBj:6w3a
PDBsum6w3a
PubMed33318494
UniProtO75460|ERN1_HUMAN Serine/threonine-protein kinase/endoribonuclease IRE1 (Gene Name=ERN1)

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