Annotations: 4APO

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	TPR_11_8	e4apoA2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_8	ECOD (1.6)
B	TPR_11_8	e4apoB1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_8	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.25.40.10	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Tetratricopeptide repeat domain	CATH (4.3.0)
B	1.25.40.10	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Tetratricopeptide repeat domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	AH RECEPTOR-INTERACTING PROTEIN	GAF domain binding protein binding binding protein domain specific binding isomerase activity catalytic activity, acting on a protein peptidyl-prolyl cis-trans isomerase activity catalytic activity cis-trans isomerase activity unfolded protein binding transcription coactivator activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity GAF domain binding protein binding binding protein domain specific binding isomerase activity catalytic activity, acting on a protein peptidyl-prolyl cis-trans isomerase activity catalytic activity cis-trans isomerase activity unfolded protein binding transcription coactivator activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding signaling receptor binding DNA-binding transcription factor binding aryl hydrocarbon receptor binding	cellular response to stimulus regulation of biological process regulation of signaling regulation of cellular process response to stimulus signaling biological regulation regulation of signal transduction intracellular signal transduction cell communication regulation of intracellular signal transduction regulation of response to stimulus regulation of protein kinase A signaling regulation of cell communication cellular response to stimulus regulation of biological process regulation of signaling regulation of cellular process response to stimulus signaling biological regulation regulation of signal transduction intracellular signal transduction cell communication regulation of intracellular signal transduction regulation of response to stimulus regulation of protein kinase A signaling regulation of cell communication protein kinase A signaling cellular process signal transduction protein localization establishment of protein localization cellular localization protein targeting establishment of localization localization establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle protein localization to mitochondrion protein targeting to mitochondrion establishment of protein localization to mitochondrion cellular response to chemical stimulus response to chemical cellular response to xenobiotic stimulus cellular metabolic process metabolic process xenobiotic metabolic process response to xenobiotic stimulus organonitrogen compound metabolic process cellular biosynthetic process protein maturation by protein folding primary metabolic process gene expression macromolecule biosynthetic process protein maturation organic substance metabolic process biosynthetic process protein folding organic substance biosynthetic process protein metabolic process macromolecule metabolic process	membrane cellular anatomical entity protein-containing complex aryl hydrocarbon receptor complex intracellular protein-containing complex receptor complex intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen membrane cellular anatomical entity protein-containing complex aryl hydrocarbon receptor complex intracellular protein-containing complex receptor complex intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen
C [auth D], D [auth E]	MITOCHONDRIAL IMPORT RECEPTOR SUBUNIT TOM20 HOMOLOG	signal sequence binding binding peptide binding mitochondrion targeting sequence binding unfolded protein binding protein binding macromolecule transmembrane transporter activity active transmembrane transporter activity protein transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity protein transmembrane transporter activity protein-transporting ATPase activity transporter activity signal sequence binding binding peptide binding mitochondrion targeting sequence binding unfolded protein binding protein binding macromolecule transmembrane transporter activity active transmembrane transporter activity protein transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity protein transmembrane transporter activity protein-transporting ATPase activity transporter activity transmembrane transporter activity ATP-dependent activity	protein localization establishment of protein localization cellular localization protein targeting establishment of localization localization establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle protein localization to mitochondrion protein targeting to mitochondrion cellular process establishment of protein localization to mitochondrion protein localization establishment of protein localization cellular localization protein targeting establishment of localization localization establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle protein localization to mitochondrion protein targeting to mitochondrion cellular process establishment of protein localization to mitochondrion nitrogen compound transport transport establishment of protein localization to mitochondrial membrane mitochondrial membrane organization cellular component organization outer mitochondrial membrane organization establishment of localization in cell cellular component organization or biogenesis mitochondrial transport mitochondrion organization membrane organization establishment of protein localization to membrane protein insertion into mitochondrial outer membrane organic substance transport intracellular transport localization within membrane protein localization to membrane organelle organization protein transport intracellular protein transport protein transmembrane import into intracellular organelle protein import into mitochondrial matrix protein transmembrane transport mitochondrial transmembrane transport transmembrane transport import into the mitochondrion RNA transport nucleic acid transport tRNA transport establishment of RNA localization RNA import into mitochondrion tRNA import into mitochondrion RNA localization nucleobase-containing compound transport	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial protein-containing complex protein-containing complex mitochondrial membrane outer mitochondrial membrane protein complex membrane membrane protein complex membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial protein-containing complex protein-containing complex mitochondrial membrane outer mitochondrial membrane protein complex membrane membrane protein complex organelle outer membrane organelle envelope bounding membrane of organelle mitochondrial envelope mitochondrial outer membrane mitochondrial outer membrane translocase complex outer membrane organelle membrane organelle membrane contact site mitochondria-associated endoplasmic reticulum membrane contact site cell periphery cell projection sperm midpiece cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection TOM complex migrasome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR046357	Peptidyl-prolyl cis-trans isomerase domain superfamily	Homologous Superfamily
A, B	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
A, B	IPR001179	FKBP-type peptidyl-prolyl cis-trans isomerase domain	Domain
A, B	IPR039663	AIP/AIPL1/TTC9	Family
A, B	IPR019734	Tetratricopeptide repeat	Repeat
C [auth D], D [auth E]	IPR023392	Mitochondrial outer membrane translocase complex, Tom20 domain superfamily	Homologous Superfamily
C [auth D], D [auth E]	IPR022422	Protein import receptor MAS20, metazoan	Family
C [auth D], D [auth E]	IPR002056	Protein import receptor MAS20	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: O00170	acromegaly Cushing disease due to pituitary adenoma prolactin-producing pituitary gland adenoma adenoma growth hormone-producing pituitary gland adenoma follicular thyroid adenoma microcystic adenoma papillary adenoma growth hormone secreting pituitary adenoma 1 Microprolactinoma malignant glioma non-functioning pituitary gland neoplasm adrenal gland hyperfunction Cushing syndrome ACTH-dependent Cushing syndrome acromegaly Cushing disease due to pituitary adenoma prolactin-producing pituitary gland adenoma adenoma growth hormone-producing pituitary gland adenoma follicular thyroid adenoma microcystic adenoma papillary adenoma growth hormone secreting pituitary adenoma 1 Microprolactinoma malignant glioma non-functioning pituitary gland neoplasm adrenal gland hyperfunction Cushing syndrome ACTH-dependent Cushing syndrome Carney complex diabetes mellitus
C [auth D], D [auth E]	Pharos: Q15388	atypical teratoid rhabdoid tumor malignant ependymoma psoriasis glioblastoma ovarian cancer lung cancer plasma cell myeloma

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.