4YYX

Crystal structure of the ZO-1 PDZ1 domain in complex with the 7-mer Claudin2 C-terminal tail

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d4yyxb1	All beta proteins	PDZ domain-like	PDZ domain-like	PDZ domain	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d4yyxb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4yyxa1	All beta proteins	PDZ domain-like	PDZ domain-like	PDZ domain	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4yyxa2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PDZ	e4yyxB1	A: beta barrels	X: PDZ domain (From Topology)	H: PDZ domain (From Topology)	T: PDZ domain	F: PDZ	ECOD (1.6)
A	PDZ	e4yyxA1	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-1 fused with Claudin-2 C-terminal	paracellular tight junction channel activity transporter activity passive transmembrane transporter activity channel activity transmembrane transporter activity structural molecule activity identical protein binding protein binding binding cell adhesion molecule binding cadherin binding calmodulin binding	bicellular tight junction assembly tight junction organization apical junction assembly cellular component organization cellular component biogenesis cell junction organization cellular component assembly cell junction assembly tight junction assembly cellular process cellular component organization or biogenesis cell-cell junction assembly cell-cell junction organization regulation of localization bicellular tight junction assembly tight junction organization apical junction assembly cellular component organization cellular component biogenesis cell junction organization cellular component assembly cell junction assembly tight junction assembly cellular process cellular component organization or biogenesis cell-cell junction assembly cell-cell junction organization regulation of localization regulation of biological process bile acid secretion organic anion transport carboxylic acid transport regulation of transport transport secretion biological regulation acid secretion establishment of localization regulation of secretion organic acid transport localization monocarboxylic acid transport regulation of bile acid secretion regulation of organic acid transport multicellular organismal process system process regulation of intestinal absorption digestive system process regulation of system process regulation of digestive system process regulation of intestinal D-glucose absorption digestion intestinal absorption intestinal D-glucose absorption intestinal hexose absorption regulation of multicellular organismal process cell adhesion cell-cell adhesion calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules cell-cell adhesion via plasma-membrane adhesion molecules biological process involved in interspecies interaction between organisms innate immune response in mucosa response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus mucosal immune response organ or tissue specific immune response intestinal lipid absorption regulation of intestinal lipid absorption paracellular transport 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 organelle organization actin cytoskeleton organization actin filament-based process cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of cellular component biogenesis regulation of cell junction assembly protein localization cellular localization cellular macromolecule localization macromolecule localization protein localization to cell junction protein localization to cell-cell junction positive regulation of cell adhesion regulation of cell adhesion positive regulation of biological process positive regulation of cell-cell adhesion positive regulation of cell-cell adhesion mediated by cadherin cell-cell adhesion mediated by cadherin regulation of cell-cell adhesion positive regulation of cellular process regulation of cell-cell adhesion mediated by cadherin negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death regulation of cytoskeleton organization regulation of actin filament-based process regulation of actin filament bundle assembly actin filament bundle organization stress fiber assembly negative regulation of supramolecular fiber organization regulation of actin filament organization negative regulation of stress fiber assembly actomyosin structure organization negative regulation of cellular component organization negative regulation of cytoskeleton organization actin filament organization negative regulation of actin filament bundle assembly regulation of organelle organization regulation of stress fiber assembly negative regulation of organelle organization contractile actin filament bundle assembly regulation of actomyosin structure organization actin filament bundle assembly regulation of actin cytoskeleton organization regulation of supramolecular fiber organization supramolecular fiber organization regulation of bicellular tight junction assembly adherens junction organization cell junction maintenance cellular component maintenance adherens junction maintenance cell-cell junction maintenance cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility locomotion regulation of sprouting angiogenesis regulation of developmental process angiogenesis regulation of vasculature development positive regulation of developmental process multicellular organism development tube morphogenesis positive regulation of sprouting angiogenesis regulation of anatomical structure morphogenesis blood vessel development system development regulation of multicellular organismal development blood vessel morphogenesis tube development positive regulation of angiogenesis sprouting angiogenesis vasculature development circulatory system development anatomical structure morphogenesis positive regulation of vasculature development regulation of angiogenesis anatomical structure formation involved in morphogenesis positive regulation of multicellular organismal process regulation of blood-brain barrier permeability maintenance of blood-brain barrier homeostatic process positive regulation of vascular permeability 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 protein localization to adherens junction protein localization to bicellular tight junction ameloblast differentiation columnar/cuboidal epithelial cell differentiation	cell-cell junction anchoring junction cell junction cellular anatomical entity apical junction complex bicellular tight junction tight junction cell periphery plasma membrane membrane apical part of cell intracellular organelle intracellular anatomical structure podosome cell-cell junction anchoring junction cell junction cellular anatomical entity apical junction complex bicellular tight junction tight junction cell periphery plasma membrane membrane apical part of cell intracellular organelle intracellular anatomical structure podosome cytoskeleton organelle intracellular non-membrane-bounded organelle actin cytoskeleton non-membrane-bounded organelle cytoplasm cytosol basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane adherens junction gap junction protein-containing complex cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR005411	Claudin-2	Family
A, B	IPR006187	Claudin	Family
A, B	IPR017974	Claudin, conserved site	Conserved Site
A, B	IPR004031	PMP-22/EMP/MP20/Claudin	Family
A, B	IPR005417	Tight junction protein ZO	Family
A, B	IPR035597	ZO-1, SH3 domain	Domain
A, B	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A, B	IPR000906	ZU5 domain	Domain
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B	IPR001452	SH3 domain	Domain
A, B	IPR008144	Guanylate kinase-like domain	Domain
A, B	IPR005418	Tight junction protein ZO-1	Family
A, B	IPR008145	Guanylate kinase/L-type calcium channel beta subunit	Domain
A, B	IPR036034	PDZ superfamily	Homologous Superfamily
A, B	IPR001478	PDZ domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q07157	pancreatitis alcoholic pancreatitis malignant pancreatic neoplasm Crohn disease interstitial lung disease ulcerative colitis subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor dermatomyositis glioblastoma malignant ependymoma medulloblastoma ovarian cancer psoriasis cancer pancreatitis alcoholic pancreatitis malignant pancreatic neoplasm Crohn disease interstitial lung disease ulcerative colitis subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor dermatomyositis glioblastoma malignant ependymoma medulloblastoma ovarian cancer psoriasis cancer Down syndrome lung adenocarcinoma malignant mesothelioma myopathy pancreatic intraductal papillary-mucinous neoplasm spina bifida colitis esophageal adenocarcinoma lung cancer MALT lymphoma osteosarcoma pilocytic 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.