Annotations: 12PB

Single particle cryo-EM structure of human MTCH2 (hyperactive mutant K25E Y235A V238D)

External Resource: Annotation

SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth B]	Heavy Chain	IGHV1	-	mitochondrial carrier homolog 2,mitochondrial brown fatuncoupling protein 1	SAbDab (2026-06-12)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A]	PF00153	Mitochondrial carrier protein (Mito_carr)	Mitochondrial carrier protein	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B]	UCP1 Nanobody	-	-	-
B [auth A]	Mitochondrial carrier homolog 2,Mitochondrial brown fat uncoupling protein 1	fatty acid binding organic acid binding binding ion binding anion binding long-chain fatty acid binding lipid binding carboxylic acid binding monocarboxylic acid binding small molecule binding phosphatidylglycerol binding phospholipid binding cardiolipin binding guanyl nucleotide binding fatty acid binding organic acid binding binding ion binding anion binding long-chain fatty acid binding lipid binding carboxylic acid binding monocarboxylic acid binding small molecule binding phosphatidylglycerol binding phospholipid binding cardiolipin binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding GDP binding transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity monoatomic ion transmembrane transporter activity oxidative phosphorylation uncoupler activity membrane insertase activity protein carrier activity molecular carrier activity	monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport cellular process monoatomic cation transport establishment of localization multicellular organismal process multicellular organismal-level homeostasis homeostatic process temperature homeostasis monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport cellular process monoatomic cation transport establishment of localization multicellular organismal process multicellular organismal-level homeostasis homeostatic process temperature homeostasis adaptive thermogenesis response to nutrient levels response to stimulus response to dietary excess diet induced thermogenesis energy homeostasis response to stress response to abiotic stimulus response to cold response to temperature stimulus cellular response to stimulus response to ketone response to lipid response to alcohol response to oxygen-containing compound cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to alcohol response to chemical cellular response to lipid cellular response to dehydroepiandrosterone cellular response to ketone response to dehydroepiandrosterone cellular response to endogenous stimulus response to hormone response to endogenous stimulus cellular response to hormone stimulus regulation of biological process biological regulation positive regulation of biological process regulation of cold-induced thermogenesis cold-induced thermogenesis positive regulation of cold-induced thermogenesis positive regulation of multicellular organismal process regulation of multicellular organismal process cellular response to oxidative stress cellular response to chemical stress response to reactive oxygen species cellular response to reactive oxygen species response to oxidative stress cellular response to stress developmental process fat cell differentiation cellular developmental process brown fat cell differentiation cell differentiation cellular localization establishment of localization in cell intracellular transport mitochondrial transmembrane transport mitochondrial transport reactive oxygen species biosynthetic process regulation of biosynthetic process regulation of cellular process reactive oxygen species metabolic process regulation of reactive oxygen species biosynthetic process biosynthetic process metabolic process regulation of metabolic process regulation of reactive oxygen species metabolic process cellular response to cold response to fatty acid cellular response to fatty acid regulation of developmental process regulation of cell differentiation positive regulation of developmental process positive regulation of stem cell differentiation stem cell differentiation positive regulation of cell differentiation regulation of stem cell differentiation positive regulation of cellular process protein localization to organelle macromolecule localization protein localization to mitochondrion intracellular protein localization chemical homeostasis lipid homeostasis positive regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process programmed cell death establishment of protein localization protein insertion into mitochondrial membrane outer mitochondrial membrane organization mitochondrial membrane organization cellular component organization cellular component organization or biogenesis protein insertion into membrane mitochondrion organization membrane organization establishment of protein localization to membrane protein insertion into mitochondrial outer membrane localization within membrane organelle organization establishment of protein localization to organelle regulation of cellular component organization regulation of organelle organization organelle fusion anatomical structure morphogenesis regulation of mitochondrion organization anatomical structure development regulation of mitochondrial fusion mitochondrial fusion regulation of anatomical structure morphogenesis	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane organelle outer membrane bounding membrane of organelle mitochondrial outer membrane outer membrane nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth A]	IPR002067	Mitochondrial carrier protein	Family
B [auth A]	IPR018108	Mitochondrial carrier protein, transmembrane region	Repeat
B [auth A]	IPR023395	Mitochondrial carrier protein domain superfamily	Homologous Superfamily
B [auth A]	IPR050391	Mitochondrial Metabolite Transporter	Family
B [auth A]	IPR018108	Mitochondrial carrier protein, transmembrane region	Repeat
B [auth A]	IPR023395	Mitochondrial carrier protein domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth A]	: Q9Y6C9	obesity disorder dilated cardiomyopathy congestive heart failure acquired metabolic disease Heart Decompensation hyperglycemia monogenic obesity peripheral nervous system disease dilated cardiomyopathy 1A heart failure inborn carbohydrate metabolic disorder peripheral neuropathy diabetes mellitus type 2 diabetes mellitus obesity disorder obesity disorder dilated cardiomyopathy congestive heart failure acquired metabolic disease Heart Decompensation hyperglycemia monogenic obesity peripheral nervous system disease dilated cardiomyopathy 1A heart failure inborn carbohydrate metabolic disorder peripheral neuropathy diabetes mellitus type 2 diabetes mellitus obesity disorder atypical teratoid rhabdoid tumor glioblastoma lung cancer metabolic syndrome X pancreatic ductal adenocarcinoma breast cancer hypertensive disorder malignant ependymoma pancreatic intraductal papillary-mucinous neoplasm endogenous depression large cell medulloblastoma malignant glioma ovarian cancer pilocytic astrocytoma

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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.