Annotations: 2XA7

AP2 clathrin adaptor core in active complex with cargo peptides

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E [auth S]	SCOP2B Superfamily	SNARE-like	8039154	3001113	SCOP2B (2022-06-29)
C [auth M]	SCOP2B Superfamily	SNARE-like	8039151	3001113	SCOP2B (2022-06-29)
C [auth M]	SCOP2B Superfamily	mu adaptin domain-like	8036010	3000810	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	ARM repeat-like	8039144	3000116	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	ARM repeat-like	8039143	3000116	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E [auth S]	Fe_dep_repress	e2xa7S1	A: alpha arrays	X: Ribonuclease H-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: Fe_dep_repress	ECOD (v295.2)
C [auth M]	Helicase_C	e2xa7M1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Sulfite oxidase, middle catalytic domain	F: Helicase_C	ECOD (v295.2)
B	Acyl-CoA_dh_1	e2xa7B1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Acyl-CoA_dh_1	ECOD (v295.2)
A	Acyl-CoA_dh_1	e2xa7A1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Acyl-CoA_dh_1	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth S]	3.30.450.60	Alpha Beta	2-Layer Sandwich	Beta-Lactamase		CATH (4.3.0)
C [auth M]	3.30.450.60	Alpha Beta	2-Layer Sandwich	Beta-Lactamase		CATH (4.3.0)
B	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)
A	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth S]	PF01217	Clathrin adaptor complex small chain (Clat_adaptor_s)	Clathrin adaptor complex small chain		Domain
C [auth M]	PF01217	Clathrin adaptor complex small chain (Clat_adaptor_s)	Clathrin adaptor complex small chain		Domain
C [auth M]	PF00928	Adaptor complexes medium subunit family (Adap_comp_sub)	Adaptor complexes medium subunit family	-	Family
B	PF01602	Adaptin N terminal region (Adaptin_N)	Adaptin N terminal region	-	Repeat
A	PF01602	Adaptin N terminal region (Adaptin_N)	Adaptin N terminal region	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth S]	AP-2 COMPLEX SUBUNIT SIGMA	cargo adaptor activity protein-macromolecule adaptor activity molecular adaptor activity clathrin-cargo adaptor activity	cellular localization establishment of protein localization transport intracellular transport establishment of localization localization protein transport establishment of localization in cell macromolecule localization cellular process intracellular protein localization intracellular protein transport synaptic vesicle endocytosis import into cell cellular localization establishment of protein localization transport intracellular transport establishment of localization localization protein transport establishment of localization in cell macromolecule localization cellular process intracellular protein localization intracellular protein transport synaptic vesicle endocytosis import into cell synaptic vesicle cycle vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse synaptic vesicle recycling endocytosis clathrin-dependent endocytosis receptor-mediated endocytosis receptor internalization postsynaptic neurotransmitter receptor internalization biological regulation neurotransmitter receptor internalization regulation of postsynaptic membrane neurotransmitter receptor levels postsynaptic endocytosis regulation of biological quality	cellular anatomical structure synapse cell junction cell periphery plasma membrane membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure vesicle coat intracellular vesicle membrane protein complex endomembrane system intracellular organelle cellular anatomical structure synapse cell junction cell periphery plasma membrane membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure vesicle coat intracellular vesicle membrane protein complex endomembrane system intracellular organelle membrane coat bounding membrane of organelle AP-type membrane coat adaptor complex AP-2 adaptor complex cytoplasmic vesicle vesicle membrane clathrin-coated pit clathrin-coated vesicle endocytic vesicle membrane coated vesicle clathrin vesicle coat vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin coat of coated pit clathrin coat of endocytic vesicle clathrin-coated endocytic vesicle membrane plasma membrane protein complex intracellular membrane-bounded organelle coated membrane clathrin-coated endocytic vesicle clathrin coat cytoplasmic vesicle membrane coated vesicle membrane organelle cytoplasm organelle membrane clathrin adaptor complex cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane postsynapse transport vesicle presynapse synaptic vesicle secretory vesicle exocytic vesicle glutamatergic synapse extrinsic component of plasma membrane presynaptic endocytic zone presynaptic membrane extrinsic component of presynaptic endocytic zone membrane synaptic membrane extrinsic component of synaptic membrane presynaptic endocytic zone membrane extrinsic component of presynaptic membrane plasma membrane region extrinsic component of membrane
D [auth P]	TGN38 CARGO PEPTIDE	-	-	-
C [auth M]	AP-2 COMPLEX SUBUNIT MU,	signal sequence receptor activity protein binding binding transmembrane transporter binding low-density lipoprotein particle receptor binding signaling receptor binding lipoprotein particle receptor binding cargo adaptor activity protein-macromolecule adaptor activity molecular adaptor activity clathrin-cargo adaptor activity disordered domain specific binding protein domain specific binding	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis synaptic vesicle endocytosis import into cell cellular localization transport synaptic vesicle cycle establishment of localization vesicle-mediated transport cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis synaptic vesicle endocytosis import into cell cellular localization transport synaptic vesicle cycle establishment of localization vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse synaptic vesicle recycling localization establishment of localization in cell endocytosis post-Golgi vesicle-mediated transport intracellular transport Golgi to vacuole transport vacuolar transport Golgi vesicle transport regulation of localization regulation of cellular process regulation of protein localization negative regulation of biological process negative regulation of protein localization to plasma membrane negative regulation of cellular process intracellular protein localization regulation of protein localization to membrane negative regulation of protein localization regulation of biological process protein localization to cell periphery protein localization to plasma membrane biological regulation regulation of protein localization to cell periphery localization within membrane protein localization to membrane negative regulation of protein localization to membrane regulation of cellular localization macromolecule localization negative regulation of protein localization to cell periphery regulation of protein localization to plasma membrane receptor internalization receptor-mediated endocytosis regulation of cellular component organization positive regulation of cellular component organization positive regulation of biological process regulation of receptor internalization positive regulation of endocytosis positive regulation of receptor-mediated endocytosis positive regulation of cellular process regulation of endocytosis regulation of transport regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport positive regulation of receptor internalization positive regulation of transport clathrin-dependent endocytosis postsynaptic neurotransmitter receptor internalization neurotransmitter receptor internalization regulation of postsynaptic membrane neurotransmitter receptor levels postsynaptic endocytosis regulation of biological quality regulation of cellular component size regulation of vesicle size regulation of anatomical structure size membrane organization vesicle budding from membrane vesicle organization organelle organization establishment of protein localization protein transport intracellular protein transport positive regulation of synaptic vesicle recycling regulation of synaptic vesicle recycling regulation of synaptic vesicle endocytosis positive regulation of synaptic vesicle endocytosis	cellular anatomical structure clathrin-coated pit membrane endomembrane system axon synapse neuron projection axon terminus plasma membrane bounded cell projection presynapse cell projection distal axon terminal bouton cell junction cellular anatomical structure clathrin-coated pit membrane endomembrane system axon synapse neuron projection axon terminus plasma membrane bounded cell projection presynapse cell projection distal axon terminal bouton cell junction neuron projection terminus intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane-bounded organelle protein-containing complex vesicle coat intracellular vesicle membrane protein complex intracellular organelle membrane coat bounding membrane of organelle AP-type membrane coat adaptor complex AP-2 adaptor complex cytoplasmic vesicle vesicle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle clathrin vesicle coat vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin coat of coated pit clathrin coat of endocytic vesicle clathrin-coated endocytic vesicle membrane plasma membrane protein complex intracellular membrane-bounded organelle coated membrane clathrin-coated endocytic vesicle clathrin coat cytoplasmic vesicle membrane coated vesicle membrane organelle organelle membrane clathrin adaptor complex glutamatergic synapse extrinsic component of plasma membrane presynaptic endocytic zone presynaptic membrane extrinsic component of presynaptic endocytic zone membrane synaptic membrane extrinsic component of synaptic membrane presynaptic endocytic zone membrane extrinsic component of presynaptic membrane plasma membrane region extrinsic component of membrane postsynapse transport vesicle synaptic vesicle secretory vesicle exocytic vesicle
B	AP-2 COMPLEX SUBUNIT BETA	clathrin binding protein binding binding signal sequence receptor activity protein-containing complex binding	synaptic vesicle endocytosis import into cell cellular localization transport synaptic vesicle cycle establishment of localization vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse synaptic vesicle recycling localization establishment of localization in cell cellular process endocytosis synaptic vesicle endocytosis import into cell cellular localization transport synaptic vesicle cycle establishment of localization vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse synaptic vesicle recycling localization establishment of localization in cell cellular process endocytosis trans-synaptic signaling regulation of biological process neurotransmitter secretion signaling secretion biological regulation cell-cell signaling export from cell neurotransmitter transport cell communication chemical synaptic transmission signal release from synapse synaptic signaling secretion by cell signal release anterograde trans-synaptic signaling clathrin-dependent endocytosis receptor-mediated endocytosis receptor internalization postsynaptic neurotransmitter receptor internalization neurotransmitter receptor internalization regulation of postsynaptic membrane neurotransmitter receptor levels postsynaptic endocytosis regulation of biological quality regulation of localization regulation of cellular process regulation of protein localization positive regulation of biological process positive regulation of protein localization to membrane localization within membrane protein localization to membrane regulation of cellular localization macromolecule localization positive regulation of protein localization intracellular protein localization regulation of protein localization to membrane positive regulation of cellular process establishment of protein localization intracellular transport protein transport intracellular protein transport clathrin coat assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis positive regulation of cellular component organization regulation of cellular component organization regulation of transport positive regulation of endocytosis positive regulation of transport regulation of endocytosis	cellular anatomical structure membrane protein-containing complex intracellular anatomical structure membrane protein complex coated membrane clathrin coat membrane coat AP-type membrane coat adaptor complex cytoplasm clathrin adaptor complex endosome membrane membrane-bounded organelle endolysosome membrane cellular anatomical structure membrane protein-containing complex intracellular anatomical structure membrane protein complex coated membrane clathrin coat membrane coat AP-type membrane coat adaptor complex cytoplasm clathrin adaptor complex endosome membrane membrane-bounded organelle endolysosome membrane intracellular vesicle lytic vacuole endomembrane system intracellular organelle bounding membrane of organelle endolysosome vesicle membrane cytoplasmic vesicle vesicle lysosome vacuolar membrane endosome vacuole intracellular membrane-bounded organelle lytic vacuole membrane cytoplasmic vesicle membrane organelle lysosomal membrane organelle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin-coated endocytic vesicle membrane clathrin-coated endocytic vesicle coated vesicle membrane postsynaptic endocytic zone postsynapse synapse cell junction cytosol vesicle coat transport vesicle membrane clathrin coat of trans-Golgi network vesicle trans-Golgi network transport vesicle membrane trans-Golgi network transport vesicle AP-1 adaptor complex clathrin vesicle coat Golgi-associated vesicle transport vesicle Golgi apparatus Golgi-associated vesicle membrane cell periphery plasma membrane AP-2 adaptor complex clathrin-coated pit clathrin coat of coated pit clathrin coat of endocytic vesicle plasma membrane protein complex glutamatergic synapse extrinsic component of plasma membrane presynaptic endocytic zone presynaptic membrane extrinsic component of presynaptic endocytic zone membrane synaptic membrane extrinsic component of synaptic membrane presynapse presynaptic endocytic zone membrane extrinsic component of presynaptic membrane plasma membrane region extrinsic component of membrane cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane synaptic vesicle secretory vesicle exocytic vesicle
A	ADAPTOR-RELATED PROTEIN COMPLEX 2, ALPHA 2 SUBUNIT	ion binding binding anion binding phosphatidylinositol binding small molecule binding protein binding protein domain specific binding kinase binding enzyme binding protein serine/threonine kinase binding protein kinase binding protein-containing complex binding cargo adaptor activity protein-macromolecule adaptor activity ion binding binding anion binding phosphatidylinositol binding small molecule binding protein binding protein domain specific binding kinase binding enzyme binding protein serine/threonine kinase binding protein kinase binding protein-containing complex binding cargo adaptor activity protein-macromolecule adaptor activity molecular adaptor activity clathrin-cargo adaptor activity disordered domain specific binding	synaptic vesicle endocytosis import into cell cellular localization transport synaptic vesicle cycle establishment of localization vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse synaptic vesicle recycling localization establishment of localization in cell cellular process endocytosis synaptic vesicle endocytosis import into cell cellular localization transport synaptic vesicle cycle establishment of localization vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse synaptic vesicle recycling localization establishment of localization in cell cellular process endocytosis clathrin-dependent endocytosis receptor-mediated endocytosis establishment of protein localization intracellular transport protein transport macromolecule localization intracellular protein localization intracellular protein transport	cell periphery cellular anatomical structure plasma membrane membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure vesicle coat intracellular vesicle membrane protein complex endomembrane system intracellular organelle membrane coat bounding membrane of organelle cell periphery cellular anatomical structure plasma membrane membrane membrane-bounded organelle protein-containing complex intracellular anatomical structure vesicle coat intracellular vesicle membrane protein complex endomembrane system intracellular organelle membrane coat bounding membrane of organelle AP-type membrane coat adaptor complex AP-2 adaptor complex cytoplasmic vesicle vesicle membrane clathrin-coated pit clathrin-coated vesicle endocytic vesicle membrane coated vesicle clathrin vesicle coat vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin coat of coated pit clathrin coat of endocytic vesicle clathrin-coated endocytic vesicle membrane plasma membrane protein complex intracellular membrane-bounded organelle coated membrane clathrin-coated endocytic vesicle clathrin coat cytoplasmic vesicle membrane coated vesicle membrane organelle cytoplasm organelle membrane clathrin adaptor complex synapse cell junction transport vesicle presynapse synaptic vesicle secretory vesicle exocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth S]	IPR016635	Adaptor protein complex, sigma subunit	Family
E [auth S]	IPR011012	Longin-like domain superfamily	Homologous Superfamily
E [auth S]	IPR000804	Clathrin adaptor complex, small chain	Conserved Site
E [auth S]	IPR022775	AP complex, mu/sigma subunit	Domain
E [auth S]	IPR027156	AP-2 complex subunit sigma	Family
C [auth M]	IPR043512	Mu2, C-terminal domain	Domain
C [auth M]	IPR050431	Adaptor complexes medium subunit	Family
C [auth M]	IPR036168	AP-2 complex subunit mu, C-terminal superfamily	Homologous Superfamily
C [auth M]	IPR028565	Mu homology domain	Domain
C [auth M]	IPR018240	Clathrin adaptor, mu subunit, conserved site	Conserved Site
C [auth M]	IPR001392	Clathrin adaptor, mu subunit	Family
C [auth M]	IPR011012	Longin-like domain superfamily	Homologous Superfamily
C [auth M]	IPR043532	AP-2 complex subunit mu, N-terminal	Domain
C [auth M]	IPR022775	AP complex, mu/sigma subunit	Domain
B	IPR016024	Armadillo-type fold	Homologous Superfamily
B	IPR013037	Clathrin adaptor, beta-adaptin, appendage, Ig-like subdomain	Homologous Superfamily
B	IPR000225	Armadillo	Repeat
B	IPR026739	AP complex subunit beta	Family
B	IPR011989	Armadillo-like helical	Homologous Superfamily
B	IPR012295	TBP domain superfamily	Homologous Superfamily
B	IPR002553	Clathrin/coatomer adaptor, adaptin-like, N-terminal	Domain
B	IPR015151	Beta-adaptin appendage, C-terminal subdomain	Domain
B	IPR013041	Clathrin adaptor, appendage, Ig-like subdomain superfamily	Homologous Superfamily
B	IPR008152	Clathrin adaptor, alpha/beta/gamma-adaptin, appendage, Ig-like subdomain	Domain
B	IPR009028	Coatomer/calthrin adaptor appendage, C-terminal subdomain	Homologous Superfamily
B	IPR016342	AP-1/2/4 complex subunit beta	Family
A	IPR016024	Armadillo-type fold	Homologous Superfamily
A	IPR003164	Clathrin adaptor, alpha-adaptin, appendage, C-terminal subdomain	Domain
A	IPR011989	Armadillo-like helical	Homologous Superfamily
A	IPR012295	TBP domain superfamily	Homologous Superfamily
A	IPR002553	Clathrin/coatomer adaptor, adaptin-like, N-terminal	Domain
A	IPR013041	Clathrin adaptor, appendage, Ig-like subdomain superfamily	Homologous Superfamily
A	IPR050840	Adaptor Complexes Large Subunit	Family
A	IPR008152	Clathrin adaptor, alpha/beta/gamma-adaptin, appendage, Ig-like subdomain	Domain
A	IPR017104	Adaptor protein complex AP-2, alpha subunit	Family
A	IPR009028	Coatomer/calthrin adaptor appendage, C-terminal subdomain	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	: P63010	breast cancer esophageal adenocarcinoma oligodendroglioma chronic obstructive pulmonary disease head and neck cancer ovarian cancer Depressive Symptoms interstitial lung disease