Annotations: 3E17

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PDZ	e3e17B1	A: beta barrels	X: PDZ domain (From Topology)	H: PDZ domain (From Topology)	T: PDZ domain	F: PDZ	ECOD (1.6)
A	PDZ	e3e17A1	A: beta barrels	X: PDZ domain (From Topology)	H: PDZ domain (From Topology)	T: PDZ domain	F: PDZ	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.30.42.10	Mainly Beta	Roll	Pdz3 Domain	PDZ domain	CATH (4.3.0)
A	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	Tight junction protein ZO-2	protein binding binding protein domain specific binding cell adhesion molecule binding protein-macromolecule adaptor activity molecular adaptor activity nucleobase-containing compound kinase activity nucleoside monophosphate kinase activity kinase activity transferase activity guanylate kinase activity catalytic activity phosphotransferase activity, phosphate group as acceptor transferase activity, transferring phosphorus-containing groups protein binding binding protein domain specific binding cell adhesion molecule binding protein-macromolecule adaptor activity molecular adaptor activity nucleobase-containing compound kinase activity nucleoside monophosphate kinase activity kinase activity transferase activity guanylate kinase activity catalytic activity phosphotransferase activity, phosphate group as acceptor transferase activity, transferring phosphorus-containing groups transmembrane transporter binding cadherin binding protein tyrosine kinase binding kinase binding enzyme binding protein kinase binding	response to organic substance response to stimulus response to chemical multicellular organismal process system process digestion intestinal absorption digestive system process developmental process epithelium development endothelial cell differentiation cellular developmental process endothelium development cell development response to organic substance response to stimulus response to chemical multicellular organismal process system process digestion intestinal absorption digestive system process developmental process epithelium development endothelial cell differentiation cellular developmental process endothelium development cell development tissue development epithelial cell differentiation endothelial cell development establishment of endothelial intestinal barrier epithelial cell development cell differentiation establishment of endothelial barrier anatomical structure development cellular process regulation of blood-brain barrier permeability maintenance of blood-brain barrier homeostatic process positive regulation of vascular permeability biological regulation positive regulation of blood-brain barrier permeability tissue homeostasis regulation of vascular permeability circulatory system process multicellular organismal-level homeostasis vascular process in circulatory system anatomical structure homeostasis regulation of biological quality blood circulation cell adhesion cell-cell adhesion homotypic cell-cell adhesion protein localization localization cellular localization cellular macromolecule localization macromolecule localization protein localization to cell junction protein localization to cell-cell junction regulation of membrane permeability cellular component organization cell junction organization cellular component organization or biogenesis cell-cell junction organization	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell periphery plasma membrane membrane cell-cell junction anchoring junction cell junction cell-cell contact zone membrane-bounded organelle nucleus membrane-enclosed lumen intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell periphery plasma membrane membrane cell-cell junction anchoring junction cell junction cell-cell contact zone membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen adherens junction apical junction complex bicellular tight junction tight junction

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR008145	Guanylate kinase/L-type calcium channel beta subunit	Domain
A, B	IPR005419	Tight junction protein ZO-2	Family
A, B	IPR005417	Tight junction protein ZO	Family
A, B	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B	IPR036034	PDZ superfamily	Homologous Superfamily
A, B	IPR001452	SH3 domain	Domain
A, B	IPR008144	Guanylate kinase-like domain	Domain
A, B	IPR001478	PDZ domain	Domain
A, B	IPR035598	ZO-2, SH3 domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q9UDY2	intrahepatic cholestasis cholestasis, progressive familial intrahepatic, 4 hypercholanemia, familial 1 hearing loss disorder pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia progressive familial intrahepatic cholestasis type 2 spina bifida amyotrophic lateral sclerosis Cholestasis in newborn Down syndrome interstitial cystitis large cell medulloblastoma non-small cell lung carcinoma osteosarcoma intrahepatic cholestasis cholestasis, progressive familial intrahepatic, 4 hypercholanemia, familial 1 hearing loss disorder pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia progressive familial intrahepatic cholestasis type 2 spina bifida amyotrophic lateral sclerosis Cholestasis in newborn Down syndrome interstitial cystitis large cell medulloblastoma non-small cell lung carcinoma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma Pick disease psoriasis subependymal giant cell astrocytoma astrocytic tumor lung adenocarcinoma nonsyndromic genetic deafness ovarian cancer pancreatic intraductal papillary-mucinous neoplasm pituitary cancer Sjogren syndrome cholestasis dermatomyositis juvenile dermatomyositis medulloblastoma oligodendroglioma

RCSB PDB Core Operations are 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.