Annotations: 1HF9

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1hf9a_	Coiled coil proteins	Antiparallel coiled-coil	F1 ATPase inhibitor, IF1, C-terminal domain	F1 ATPase inhibitor, IF1, C-terminal domain	F1 ATPase inhibitor, IF1, C-terminal domain	COW (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
B	d1hf9b_	Coiled coil proteins	Antiparallel coiled-coil	F1 ATPase inhibitor, IF1, C-terminal domain	F1 ATPase inhibitor, IF1, C-terminal domain	F1 ATPase inhibitor, IF1, C-terminal domain	COW (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.500	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Single helix bin	CATH (4.3.0)
B	1.20.5.500	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Single helix bin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF04568	Mitochondrial ATPase inhibitor, IATP (IATP)	Mitochondrial ATPase inhibitor, IATP	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	ATPASE INHIBITOR (MITOCHONDRIAL)	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity angiostatin binding calmodulin binding molecular function inhibitor activity molecular function regulator activity ATPase inhibitor activity ATPase regulator activity structural molecule activity ATPase binding enzyme binding	aerobic respiration oxidative phosphorylation regulation of cellular process negative regulation of small molecule metabolic process nucleotide biosynthetic process negative regulation of biological process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process negative regulation of ATP metabolic process purine ribonucleoside triphosphate biosynthetic process regulation of nucleotide biosynthetic process regulation of primary metabolic process regulation of ATP metabolic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process aerobic respiration oxidative phosphorylation regulation of cellular process negative regulation of small molecule metabolic process nucleotide biosynthetic process negative regulation of biological process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process negative regulation of ATP metabolic process purine ribonucleoside triphosphate biosynthetic process regulation of nucleotide biosynthetic process regulation of primary metabolic process regulation of ATP metabolic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process negative regulation of nucleotide metabolic process purine nucleoside triphosphate biosynthetic process regulation of small molecule metabolic process negative regulation of nucleotide biosynthetic process negative regulation of mitochondrial ATP synthesis coupled proton transport regulation of nucleotide metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process small molecule metabolic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process regulation of biological process negative regulation of metabolic process primary metabolic process nucleotide metabolic process regulation of purine nucleotide metabolic process ribonucleoside triphosphate biosynthetic process biosynthetic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process metabolic process regulation of phosphorus metabolic process proton motive force-driven mitochondrial ATP synthesis nucleoside triphosphate metabolic process purine ribonucleotide metabolic process regulation of metabolic process purine nucleotide biosynthetic process ribose phosphate metabolic process cellular respiration ATP metabolic process negative regulation of purine nucleotide metabolic process energy derivation by oxidation of organic compounds ATP biosynthetic process negative regulation of phosphate metabolic process proton motive force-driven ATP synthesis negative regulation of ATP biosynthetic process regulation of mitochondrial ATP synthesis coupled proton transport purine nucleotide metabolic process ribonucleotide metabolic process negative regulation of purine nucleotide biosynthetic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process purine ribonucleoside triphosphate metabolic process negative regulation of cellular process ribonucleoside triphosphate metabolic process regulation of biosynthetic process purine nucleoside triphosphate metabolic process carbohydrate derivative biosynthetic process regulation of purine nucleotide biosynthetic process nucleoside triphosphate biosynthetic process biological regulation generation of precursor metabolites and energy nucleobase-containing compound biosynthetic process purine-containing compound metabolic process regulation of ATP biosynthetic process organophosphate metabolic process negative regulation of biosynthetic process negative regulation of phosphorus metabolic process cellular process developmental process multicellular organismal process cellular developmental process homeostatic process hemopoiesis cell development erythrocyte differentiation multicellular organismal-level homeostasis myeloid cell differentiation immune system process cell differentiation anatomical structure development homeostasis of number of cells myeloid cell homeostasis erythrocyte homeostasis protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis heme metabolic process pigment metabolic process porphyrin-containing compound biosynthetic process tetrapyrrole metabolic process heme biosynthetic process pigment biosynthetic process tetrapyrrole biosynthetic process porphyrin-containing compound metabolic process negative regulation of cell population proliferation cell population proliferation endothelial cell proliferation negative regulation of endothelial cell proliferation regulation of endothelial cell proliferation regulation of cell population proliferation regulation of epithelial cell proliferation epithelial cell proliferation negative regulation of epithelial cell proliferation negative regulation of hydrolase activity regulation of molecular function regulation of catalytic activity regulation of hydrolase activity negative regulation of molecular function negative regulation of catalytic activity	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cell surface protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR007648	Mitochondrial ATPase inhibitor	Family

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.