Annotations: 3HPK

Oxidized dimeric PICK1 PDZ in complex with the carboxyl tail peptide of GluR2

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Glyco_hydro_25	e3hpkA1	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Cu,Zn superoxide dismutase-like	F: Glyco_hydro_25	ECOD (v294.2)
B	PBP	e3hpkB1	A: beta barrels	X: Lipocalins/Streptavidin	H: Immunoglobulin-related	T: PEBP-like	F: PBP	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.42.10	Mainly Beta	Roll	Pdz3 Domain	PDZ domain	CATH (4.3.0)
B	2.30.42.10	Mainly Beta	Roll	Pdz3 Domain	PDZ domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00595	PDZ domain (PDZ)	PDZ domain	PDZ domains are found in diverse signaling proteins.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PRKCA-binding protein,9-mer peptide of THE GLUR2 SUBUNIT	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding phospholipid binding lipid binding fusogenic activity SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity signaling receptor binding ephrin receptor binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding phospholipid binding lipid binding fusogenic activity SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity signaling receptor binding ephrin receptor binding protein tyrosine kinase binding kinase binding receptor tyrosine kinase binding enzyme binding protein kinase binding cation binding ion binding metal ion binding small molecule binding identical protein binding protein domain specific binding ionotropic glutamate receptor binding glutamate receptor binding GTPase binding protein transporter activity transporter activity protein kinase C binding G protein-coupled receptor binding G protein-coupled glutamate receptor binding membrane curvature sensor activity molecular sensor activity molecular function regulator activity Arp2/3 complex binding	positive regulation of AMPA glutamate receptor clustering regulation of localization regulation of postsynaptic membrane organization cellular localization positive regulation of cellular component organization regulation of cellular process regulation of cellular component organization regulation of protein localization regulation of AMPA glutamate receptor clustering positive regulation of postsynaptic membrane organization positive regulation of biological process cellular component organization localization receptor clustering positive regulation of AMPA glutamate receptor clustering regulation of localization regulation of postsynaptic membrane organization cellular localization positive regulation of cellular component organization regulation of cellular process regulation of cellular component organization regulation of protein localization regulation of AMPA glutamate receptor clustering positive regulation of postsynaptic membrane organization positive regulation of biological process cellular component organization localization receptor clustering cellular component organization or biogenesis synapse organization intracellular protein localization regulation of receptor clustering postsynaptic membrane organization regulation of protein localization to membrane positive regulation of cellular process membrane organization regulation of biological process postsynapse organization positive regulation of receptor clustering AMPA glutamate receptor clustering biological regulation positive regulation of protein localization to membrane glutamate receptor clustering neurotransmitter-gated ion channel clustering localization within membrane protein localization to membrane regulation of glutamate receptor clustering cell junction organization regulation of cellular localization macromolecule localization positive regulation of protein localization cellular process developmental process multicellular organismal process cellular developmental process cell development nervous system development glial cell development neurogenesis multicellular organism development gliogenesis glial cell differentiation cell differentiation anatomical structure development system development cellular response to stimulus cellular response to nutrient levels response to nutrient levels response to stimulus cellular response to stress response to stress response to starvation cellular response to glucose starvation cellular response to starvation monoamine transport nitrogen compound transport transport establishment of localization establishment of protein localization regulation of hormone secretion regulation of peptide secretion signaling hormone secretion protein localization to extracellular region cell communication peptide secretion regulation of secretion by cell secretion by cell signal release regulation of biological quality regulation of peptide hormone secretion regulation of signaling regulation of transport secretion regulation of hormone levels regulation of peptide transport regulation of establishment of protein localization establishment of protein localization to extracellular region export from cell cell-cell signaling regulation of protein transport protein secretion regulation of protein secretion regulation of secretion peptide transport protein transport regulation of insulin secretion peptide hormone secretion hormone transport regulation of cell communication insulin secretion dendritic spine organization plasma membrane bounded cell projection organization cell projection organization neuron projection organization establishment of protein localization to membrane protein insertion into plasma membrane protein insertion into membrane protein phosphorylation phosphorylation primary metabolic process macromolecule modification phosphate-containing compound metabolic process metabolic process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process regulation of Arp2/3 complex-mediated actin nucleation regulation of cytoskeleton organization regulation of actin filament-based process negative regulation of biological process regulation of actin nucleation actin filament-based process negative regulation of cellular process negative regulation of supramolecular fiber organization negative regulation of actin nucleation negative regulation of Arp2/3 complex-mediated actin nucleation regulation of actin filament organization actin cytoskeleton organization negative regulation of cellular component organization negative regulation of cytoskeleton organization actin filament organization Arp2/3 complex-mediated actin nucleation regulation of organelle organization organelle organization negative regulation of organelle organization regulation of actin cytoskeleton organization regulation of supramolecular fiber organization actin nucleation supramolecular fiber organization cytoskeleton organization protein targeting import into cell receptor internalization postsynaptic neurotransmitter receptor internalization regulation of receptor internalization vesicle-mediated transport vesicle-mediated transport in synapse establishment of localization in cell regulation of postsynaptic neurotransmitter receptor internalization regulation of endocytosis regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport neurotransmitter receptor internalization regulation of postsynaptic membrane neurotransmitter receptor levels postsynaptic endocytosis endocytosis receptor-mediated endocytosis positive regulation of endocytosis positive regulation of receptor-mediated endocytosis positive regulation of receptor internalization positive regulation of transport response to decreased oxygen levels cellular response to chemical stimulus cellular response to oxygen levels response to chemical response to oxygen levels cellular response to decreased oxygen levels response to abiotic stimulus intracellular transport intracellular protein transport dendritic spine maintenance cellular component maintenance cellular response to acid chemical cellular response to nitrogen compound cellular response to amino acid stimulus response to glycine response to oxygen-containing compound response to nitrogen compound response to amino acid cellular response to glycine cellular response to oxygen-containing compound response to acid chemical negative regulation of signaling modulation of chemical synaptic transmission negative regulation of synaptic transmission negative regulation of cell communication synaptic signaling regulation of synaptic plasticity trans-synaptic signaling chemical synaptic transmission regulation of trans-synaptic signaling long-term synaptic depression anterograde trans-synaptic signaling regulation of biosynthetic process negative regulation of metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of metabolic process negative regulation of macromolecule metabolic process catecholamine transport organic hydroxy compound transport dopamine transport	postsynaptic endocytic zone postsynapse cellular anatomical structure synapse cell junction intracellular anatomical structure cytoplasm cytosol cell periphery presynapse membrane plasma membrane presynaptic membrane plasma membrane region postsynaptic endocytic zone postsynapse cellular anatomical structure synapse cell junction intracellular anatomical structure cytoplasm cytosol cell periphery presynapse membrane plasma membrane presynaptic membrane plasma membrane region synaptic membrane cell cortex cytoplasmic region presynaptic active zone cytoplasmic component cell cortex region presynaptic active zone somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection glutamatergic synapse membrane-bounded organelle intracellular organelle Golgi apparatus organelle intracellular membrane-bounded organelle endomembrane system cytoskeleton membraneless organelle intracellular membraneless organelle neuron spine dendritic spine perinuclear region of cytoplasm transport vesicle intracellular vesicle cytoplasmic vesicle synaptic vesicle secretory vesicle vesicle exocytic vesicle mitochondrion postsynaptic specialization neuron projection cytoplasm dendrite cytoplasm dendritic spine cytoplasm protein-containing complex excitatory synapse postsynaptic density neuron to neuron synapse asymmetric synapse Golgi apparatus subcompartment organelle subcompartment trans-Golgi network membrane trans-Golgi network organelle membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR030798	Arfaptin family	Family
A, B	IPR010504	Arfaptin homology (AH) domain	Domain
A, B	IPR037959	PICK1, BAR domain	Domain
A, B	IPR027267	AH/BAR domain superfamily	Homologous Superfamily
A, B	IPR036034	PDZ superfamily	Homologous Superfamily
A, B	IPR001478	PDZ domain	Domain

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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.