Annotations: 13GJ

IST1 bound to PI(4,5)P2 containing membrane

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	IST1/CHMP3-like	8055735	3002301	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03398	Regulator of Vps4 activity in the MVB pathway (Ist1)	Regulator of Vps4 activity in the MVB pathway	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	IST1 homolog	protein binding binding protein domain specific binding MIT domain binding cell adhesion molecule binding cadherin binding protein-containing complex binding identical protein binding	cytoskeleton-dependent cytokinesis cellular process cytokinesis cell division cell cycle cell cycle process localization establishment of protein localization establishment of localization organelle assembly multivesicular body assembly vesicle organization cellular component organization cellular component biogenesis cytoskeleton-dependent cytokinesis cellular process cytokinesis cell division cell cycle cell cycle process localization establishment of protein localization establishment of localization organelle assembly multivesicular body assembly vesicle organization cellular component organization cellular component biogenesis organelle organization cellular component assembly multivesicular body organization endosome organization cellular component organization or biogenesis endomembrane system organization protein transport transport macromolecule localization intracellular protein localization membrane organization mitotic cytokinetic process mitotic cytokinesis mitotic cell cycle mitotic cell cycle process midbody abscission cytokinetic process regulation of biological process regulation of cellular process positive regulation of protein metabolic process regulation of protein metabolic process biological regulation positive regulation of biological process primary metabolic process regulation of macromolecule metabolic process regulation of primary metabolic process positive regulation of metabolic process regulation of proteolysis proteolysis positive regulation of proteolysis metabolic process positive regulation of macromolecule metabolic process protein metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process cellular component disassembly protein-containing complex organization protein-containing complex disassembly ESCRT III complex disassembly ESCRT complex disassembly	midbody cellular anatomical structure membrane-bounded organelle intracellular organelle organelle envelope intracellular anatomical structure organelle nuclear envelope nucleus intracellular membrane-bounded organelle endomembrane system extracellular exosome extracellular vesicle extracellular organelle midbody cellular anatomical structure membrane-bounded organelle intracellular organelle organelle envelope intracellular anatomical structure organelle nuclear envelope nucleus intracellular membrane-bounded organelle endomembrane system extracellular exosome extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle centrosome microtubule organizing center cytoskeleton membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytoplasm cytosol lytic vacuole intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen vacuolar lumen intracellular organelle lumen cytoplasmic vesicle lysosome vesicle lumen azurophil granule vacuole secretory granule lumen azurophil granule lumen organelle lumen secretory granule primary lysosome secretory vesicle chromatin chromosome Flemming body endoplasmic reticulum-Golgi intermediate compartment

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005061	Vacuolar protein sorting-associated protein Ist1	Family
A	IPR042277	Vacuolar protein sorting-associated protein IST1-like	Homologous Superfamily

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.