5FPI

Mu2 adaptin subunit of the AP2 adaptor (C-terminal domain) complexed with Integrin alpha4 internalisation peptide QYKSILQE

Domain Annotation: CATH CATH Database (version 4.2.0) Homepage

Chain	Domain	Class	Architecture	Topology	Homology
A	2.60.40.1170	Mainly Beta	Sandwich	Immunoglobulin-like	Mu homology domain, subdomain B
A	2.60.40.1170	Mainly Beta	Sandwich	Immunoglobulin-like	Mu homology domain, subdomain B
A	2.60.40.1170	Mainly Beta	Sandwich	Immunoglobulin-like	Mu homology domain, subdomain B
A	2.60.40.1170	Mainly Beta	Sandwich	Immunoglobulin-like	Mu homology domain, subdomain B

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A	PF01217	Clathrin adaptor complex small chain (Clat_adaptor_s)	Clathrin adaptor complex small chain	-	Domain
A	PF00928	Adaptor complexes medium subunit family (Adap_comp_sub)	Adaptor complexes medium subunit family	-	Family
B	PF01839	FG-GAP repeat (FG-GAP)	FG-GAP repeat	-	Repeat
B	PF08441	Integrin alpha (Integrin_alpha2)	Integrin alpha	-	Family

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	AP-2 COMPLEX SUBUNIT MU	binding protein binding clathrin binding protein-macromolecule adaptor activity clathrin adaptor activity molecular adaptor activity cargo adaptor activity protein domain specific binding disordered domain specific binding ion channel binding lipid binding signaling receptor binding low-density lipoprotein particle receptor binding lipoprotein particle receptor binding signal sequence binding amide binding peptide binding	cellular process cellular component organization cellular component assembly protein-containing complex subunit organization cellular component biogenesis protein-containing complex assembly cellular component organization or biogenesis regulation of cellular component size biological regulation regulation of biological quality regulation of anatomical structure size regulation of vesicle size	intracellular anatomical structure cytoplasm plasma membrane clathrin-coated pit endomembrane system vesicle membrane membrane membrane coat clathrin coat AP-type membrane coat adaptor complex vesicle coat AP-2 adaptor complex clathrin vesicle coat clathrin coat of endocytic vesicle clathrin adaptor complex clathrin coat of coated pit coated vesicle clathrin-coated vesicle endocytic vesicle cytoplasmic vesicle membrane coated vesicle membrane clathrin-coated vesicle membrane endocytic vesicle membrane clathrin-coated endocytic vesicle membrane organelle membrane cytoplasmic vesicle vesicle protein-containing complex organelle membrane-bounded organelle clathrin-coated endocytic vesicle coated membrane cell periphery intracellular vesicle bounding membrane of organelle plasma membrane region membrane protein complex plasma membrane protein complex cellular anatomical entity cell junction synapse glutamatergic synapse intracellular organelle intracellular membrane-bounded organelle postsynapse axon cell projection neuron projection terminal bouton axon terminus neuron projection terminus presynapse plasma membrane bounded cell projection distal axon
B	INTEGRIN ALPHA-4 SUBUNIT	binding protein binding cell adhesion molecule binding coreceptor activity signaling receptor activity molecular transducer activity signaling receptor binding integrin binding protein-containing complex binding ion binding cation binding metal ion binding antigen binding protein antigen binding	response to endogenous stimulus cellular process response to organic substance response to organonitrogen compound response to chemical response to stimulus cellular response to stimulus cellular response to chemical stimulus cellular response to organic substance cellular response to organonitrogen compound cellular response to endogenous stimulus response to peptide cellular response to peptide response to nitrogen compound cellular response to nitrogen compound response to oxygen-containing compound cellular response to oxygen-containing compound response to amyloid-beta cellular response to amyloid-beta response to cytokine cellular response to cytokine stimulus cellular component organization extracellular matrix organization extracellular structure organization external encapsulating structure organization cellular component organization or biogenesis negative regulation of protein binding regulation of protein binding regulation of protein homodimerization activity negative regulation of molecular function regulation of binding negative regulation of binding biological regulation regulation of molecular function negative regulation of protein homodimerization activity	cell surface cellular anatomical entity extracellular region extracellular space vesicle organelle membrane-bounded organelle extracellular organelle extracellular exosome extracellular vesicle focal adhesion cell junction cell-substrate junction anchoring junction axon growth cone site of polarized growth cell projection neuron projection plasma membrane bounded cell projection distal axon plasma membrane integral component of plasma membrane integrin complex membrane integral component of membrane intrinsic component of membrane intrinsic component of plasma membrane protein-containing complex integrin alpha4-beta1 complex receptor complex cell periphery protein complex involved in cell adhesion membrane protein complex plasma membrane protein complex plasma membrane signaling receptor complex integrin alpha4-beta7 complex somatodendritic compartment neuronal cell body cell body

RCSB PDB is 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.