Annotations: 6X23

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PDZ	e6x23A1	A: beta barrels	X: PDZ domain (From Topology)	H: PDZ domain (From Topology)	T: PDZ domain	F: PDZ	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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
B	G protein-activated inward rectifier potassium channel 3	inward rectifier potassium channel activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity inward rectifier potassium channel activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity G-protein activated inward rectifier potassium channel activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity	biological regulation regulation of biological quality regulation of presynaptic membrane potential regulation of membrane potential regulation of localization regulation of biological process regulation of cellular process transport regulation of transport monoatomic ion transmembrane transport regulation of monoatomic ion transport regulation of monoatomic ion transmembrane transport establishment of localization transmembrane transport biological regulation regulation of biological quality regulation of presynaptic membrane potential regulation of membrane potential regulation of localization regulation of biological process regulation of cellular process transport regulation of transport monoatomic ion transmembrane transport regulation of monoatomic ion transport regulation of monoatomic ion transmembrane transport establishment of localization transmembrane transport localization regulation of transmembrane transport monoatomic ion transport cellular process import into cell import across plasma membrane potassium ion transmembrane transport inorganic cation import across plasma membrane metal ion transport monoatomic cation transmembrane transport inorganic ion import across plasma membrane potassium ion transport potassium ion import across plasma membrane monoatomic cation transport	cellular anatomical structure parallel fiber to Purkinje cell synapse synapse cell junction excitatory synapse voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex membrane plasma membrane potassium channel complex membrane protein complex cation channel complex transporter complex cellular anatomical structure parallel fiber to Purkinje cell synapse synapse cell junction excitatory synapse voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex membrane plasma membrane potassium channel complex membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex inward rectifier potassium channel complex monoatomic ion channel complex presynapse presynaptic membrane plasma membrane region synaptic membrane
A	mbSHANK1 protein	signaling receptor complex adaptor activity protein-macromolecule adaptor activity synaptic receptor adaptor activity molecular adaptor activity signaling adaptor activity ionotropic glutamate receptor binding protein binding binding signaling receptor binding glutamate receptor binding	cellular component organization cell junction organization cellular process synapse organization cellular component organization or biogenesis	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR041647	Inward rectifier potassium channel, C-terminal	Domain
B	IPR003276	Potassium channel, inwardly rectifying, Kir3.3	Family
B	IPR040445	Potassium channel, inwardly rectifying, transmembrane domain	Domain
B	IPR016449	Potassium channel, inwardly rectifying, Kir	Family
B	IPR014756	Immunoglobulin E-set	Homologous Superfamily
B	IPR013518	Potassium channel, inwardly rectifying, Kir, cytoplasmic	Homologous Superfamily
A	IPR001452	SH3 domain	Domain
A	IPR002110	Ankyrin repeat	Repeat
A	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A	IPR013761	Sterile alpha motif/pointed domain superfamily	Homologous Superfamily
A	IPR051569	SH3 and multiple ankyrin repeat domains protein	Family
A	IPR001478	PDZ domain	Domain
A	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A	IPR001660	Sterile alpha motif domain	Domain
A	IPR036034	PDZ superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	Pharos: Q92806	astrocytic tumor large cell medulloblastoma medulloblastoma pilocytic astrocytoma atypical teratoid rhabdoid tumor malignant ependymoma oligodendroglioma primitive neuroectodermal tumor glioblastoma malignant glioma Pick disease subependymal giant cell astrocytoma

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.