Annotations: 7QCS

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00595	e7qcsA1	A: beta barrels	X: PDZ domain (From Topology)	H: PDZ domain (From Topology)	T: PDZ domain	F: PF00595	ECOD (1.6)
B	PF00595	e7qcsB1	A: beta barrels	X: PDZ domain (From Topology)	H: PDZ domain (From Topology)	T: PDZ domain	F: PF00595	ECOD (1.6)
E	PF00595	e7qcsE1	A: beta barrels	X: PDZ domain (From Topology)	H: PDZ domain (From Topology)	T: PDZ domain	F: PF00595	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, E	PF00595	PDZ domain (PDZ)	PDZ domain	PDZ domains are found in diverse signaling proteins.	Domain
C, D	PF02723	Coronavirus small envelope protein E (CoV_E)	Coronavirus small envelope protein E	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, E	Protein PALS1	protein binding binding protein domain specific binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding protein binding binding protein domain specific binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding identical protein binding	developmental process multicellular organismal process cellular developmental process central nervous system neuron development cell development nervous system development generation of neurons central nervous system neuron differentiation multicellular organism development neurogenesis central nervous system development neuron differentiation cell differentiation neuron development anatomical structure development developmental process multicellular organismal process cellular developmental process central nervous system neuron development cell development nervous system development generation of neurons central nervous system neuron differentiation multicellular organism development neurogenesis central nervous system development neuron differentiation cell differentiation neuron development anatomical structure development cellular process system development tissue morphogenesis anatomical structure morphogenesis epithelium development morphogenesis of an epithelium tissue development morphogenesis of an epithelial sheet cellular response to stimulus cellular response to growth factor stimulus cell surface receptor protein serine/threonine kinase signaling pathway regulation of cellular process response to stimulus signaling cellular response to transforming growth factor beta stimulus regulation of transmembrane receptor protein serine/threonine kinase signaling pathway regulation of signal transduction regulation of transforming growth factor beta receptor signaling pathway cell communication cellular response to endogenous stimulus signal transduction enzyme-linked receptor protein signaling pathway regulation of biological process regulation of signaling cell surface receptor signaling pathway regulation of cellular response to transforming growth factor beta stimulus response to endogenous stimulus regulation of cellular response to growth factor stimulus biological regulation response to transforming growth factor beta regulation of response to stimulus transforming growth factor beta receptor signaling pathway regulation of cell communication response to growth factor transforming growth factor beta receptor superfamily signaling pathway cellular component assembly involved in morphogenesis myelin assembly cellular component organization cellular component biogenesis myelination cellular anatomical entity morphogenesis cellular component assembly axon ensheathment ensheathment of neurons anatomical structure formation involved in morphogenesis cellular component organization or biogenesis protein localization localization protein localization to cell periphery cellular localization protein localization to plasma membrane cellular macromolecule localization macromolecule localization localization within membrane protein localization to membrane morphogenesis of embryonic epithelium embryonic morphogenesis establishment or maintenance of cell polarity embryo development establishment or maintenance of polarity of embryonic epithelium head development forebrain development animal organ development brain development pallium development cerebral cortex development telencephalon development organic substance metabolic process biosynthetic process cellular biosynthetic process cellular metabolic process organic substance biosynthetic process metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process protein localization to myelin sheath abaxonal region peripheral nervous system axon ensheathment glial cell development gliogenesis plasma membrane organization myelination in peripheral nervous system peripheral nervous system myelin maintenance Schwann cell differentiation endomembrane system organization membrane organization peripheral nervous system development Schwann cell development glial cell differentiation myelin maintenance establishment or maintenance of bipolar cell polarity establishment or maintenance of epithelial cell apical/basal polarity establishment or maintenance of apical/basal cell polarity	somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle myelin sheath adaxonal region myelin sheath intracellular anatomical structure cytoplasm protein-containing complex apical junction complex cell-cell junction anchoring junction cell junction adherens junction intracellular organelle Golgi apparatus intracellular membrane-bounded organelle endomembrane system compact myelin Schmidt-Lanterman incisure bounding membrane of organelle endoplasmic reticulum-Golgi intermediate compartment membrane endoplasmic reticulum-Golgi intermediate compartment organelle membrane bicellular tight junction tight junction axon cell projection neuron projection plasma membrane bounded cell projection lateral loop
C, D	Envelope small membrane protein	passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity structural constituent of virion structural molecule activity identical protein binding protein binding binding	virion assembly cytoplasmic capsid assembly viral process viral capsid assembly viral life cycle viral budding from Golgi membrane viral budding	membrane cellular anatomical entity virion component virion membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle endoplasmic reticulum-Golgi intermediate compartment cytoplasm intracellular membrane-bounded organelle host cellular component host intracellular part host cell Golgi membrane membrane cellular anatomical entity virion component virion membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle endoplasmic reticulum-Golgi intermediate compartment cytoplasm intracellular membrane-bounded organelle host cellular component host intracellular part host cell Golgi membrane host cell Golgi apparatus host cell membrane host cell cytoplasm part host cell cytoplasm host cell part host cell endomembrane system host intracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, E	IPR008145	Guanylate kinase/L-type calcium channel beta subunit	Domain
A, B, E	IPR004172	L27 domain	Domain
A, B, E	IPR014775	L27 domain, C-terminal	Domain
A, B, E	IPR015145	L27-N	Domain
A, B, E	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A, B, E	IPR020590	Guanylate kinase, conserved site	Conserved Site
A, B, E	IPR035601	MPP5, SH3 domain	Domain
A, B, E	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B, E	IPR036034	PDZ superfamily	Homologous Superfamily
A, B, E	IPR001452	SH3 domain	Domain
A, B, E	IPR036892	L27 domain superfamily	Homologous Superfamily
A, B, E	IPR008144	Guanylate kinase-like domain	Domain
A, B, E	IPR001478	PDZ domain	Domain
C, D	IPR003873	Envelope small membrane protein, coronavirus	Family
C, D	IPR044377	Envelope small membrane protein, SARS-CoV-2-like	Family
C, D	IPR043506	Envelope small membrane protein, betacoronavirus	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, E	Pharos: Q8N3R9	atypical teratoid rhabdoid tumor malignant ependymoma ulcerative colitis interstitial cystitis medulloblastoma large cell medulloblastoma ovarian cancer

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 R01GM133198.