Ire1: Difference between revisions

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<StructureSection load='3lj0' size='400' side='right' caption='Structure of yeast Ire1 cytoplasmic domain dimer complex with cyclin-dependent kinase inhibitor (PDB entry [[3lj1]])' scene=''>
<StructureSection load='3lj0' size='400' side='right' caption='Structure of yeast Ire1 cytoplasmic domain dimer complex with quercetin, ADP (stick model), Ca+2 and Sr+2 ions (PDB entry [[3lj0]])' scene=''>
    
    
'''Ire1''' is a serine/threonine protein kinase/endoribonuclease.  It is important in altering gene expression as a response to endoplasmic reticulum-based stress signals<ref>PMID:w23880584</ref>.  The endoribonuclase domain of Ire1 is a transcriptional activator which triggers growth arrest and apoptosis.  The kinase domain of Ire1 is required for activation of the endoribonuclase domain.  Ire1 senses unfolded proteins causing its auto-activation.  
'''Ire1''' is a serine/threonine protein kinase/endoribonuclease.  It is important in altering gene expression as a response to endoplasmic reticulum-based stress signals<ref>PMID:w23880584</ref>.  The endoribonuclase domain of Ire1 is a transcriptional activator which triggers growth arrest and apoptosis.  The kinase domain of Ire1 is required for activation of the endoribonuclase domain.  Ire1 senses unfolded proteins causing its auto-activation.  

Revision as of 10:38, 31 March 2016

<StructureSection load='3lj0' size='400' side='right' caption='Structure of yeast Ire1 cytoplasmic domain dimer complex with quercetin, ADP (stick model), Ca+2 and Sr+2 ions (PDB entry 3lj0)' scene=>

Ire1 is a serine/threonine protein kinase/endoribonuclease. It is important in altering gene expression as a response to endoplasmic reticulum-based stress signals[1]. The endoribonuclase domain of Ire1 is a transcriptional activator which triggers growth arrest and apoptosis. The kinase domain of Ire1 is required for activation of the endoribonuclase domain. Ire1 senses unfolded proteins causing its auto-activation.

3D structures of Ire1

2hz6 – hIre1 N terminal (mutant) – human
2rio, 3fbv, 3sdm – yIre1 cytoplasmic domain – yeast
3sdj - yIre1 cytoplasmic domain (mutant)
2bei – yIre1 lumenal domain + peptide
3lj0 - yIre1 cytoplasmic domain + quercetin + ADP
3lj1, 3lj2 - yIre1 cytoplasmic domain + inhibitor
3p23 - hIre1 cytoplasmic domain + ADP

References

  1. ↑ Unknown PubmedID w23880584

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky