5CQ2

Crystal Structure of tandem WW domains of ITCH in complex with TXNIP peptide

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	WW	e5cq2A1	A: beta meanders	X: WW domain-like	H: WW domain (From Topology)	T: WW domain	F: WW	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.20.70.10	Mainly Beta	Single Sheet	Ubiquitin Ligase Nedd4	Chain: W	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00397	WW domain (WW)	WW domain	The WW domain is a protein module with two highly conserved tryptophans that binds proline-rich peptide motifs in vitro.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	E3 ubiquitin-protein ligase Itchy homolog	aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity ubiquitin-ubiquitin ligase activity ubiquitin-like protein ligase activity ubiquitin protein ligase activity transferase activity catalytic activity ubiquitin-protein transferase activity protein binding binding arrestin family protein binding ligase activity aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity ubiquitin-ubiquitin ligase activity ubiquitin-like protein ligase activity ubiquitin protein ligase activity transferase activity catalytic activity ubiquitin-protein transferase activity protein binding binding arrestin family protein binding ligase activity ribonucleoprotein complex binding protein-containing complex binding signaling receptor binding cytokine receptor binding CXCR chemokine receptor binding G protein-coupled receptor binding chemokine receptor binding ubiquitin-like protein ligase binding enzyme binding	multicellular organismal process regulation of cellular process negative regulation of biological process negative regulation of type I interferon production cytokine production negative regulation of cellular process regulation of cytokine production regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process type I interferon production negative regulation of metabolic process biological regulation multicellular organismal process regulation of cellular process negative regulation of biological process negative regulation of type I interferon production cytokine production negative regulation of cellular process regulation of cytokine production regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process type I interferon production negative regulation of metabolic process biological regulation negative regulation of cytokine production 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 metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process negative regulation of multicellular organismal process regulation of metabolic process regulation of type I interferon production localization import into cell receptor internalization transport receptor-mediated endocytosis endocytosis establishment of localization vesicle-mediated transport biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction apoptotic process cell death programmed cell death 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 protein autoubiquitination primary metabolic process protein ubiquitination macromolecule modification protein metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal regulation of defense response regulation of response to biotic stimulus negative regulation of response to biotic stimulus regulation of response to external stimulus regulation of defense response to virus regulation of response to stress response to virus negative regulation of response to stimulus defense response to virus regulation of response to stimulus negative regulation of response to external stimulus negative regulation of defense response negative regulation of defense response to virus regulation of growth regulation of cellular component organization growth regulation of cell growth cell growth cellular component organization cellular component organization or biogenesis receptor catabolic process catabolic process positive regulation of biological process regulation of catabolic process macromolecule catabolic process cellular catabolic process positive regulation of catabolic process positive regulation of metabolic process receptor metabolic process regulation of receptor catabolic process positive regulation of macromolecule metabolic process positive regulation of receptor catabolic process positive regulation of cellular process immune system development regulation of T cell anergy lymphocyte anergy regulation of lymphocyte anergy positive regulation of lymphocyte anergy positive regulation of T cell tolerance induction multicellular organism development positive regulation of T cell anergy anatomical structure development regulation of immune system process regulation of T cell tolerance induction positive regulation of immune system process T cell anergy system development developmental process T cell tolerance induction positive regulation of multicellular organismal process regulation of tolerance induction positive regulation of tolerance induction tolerance induction proteolysis involved in protein catabolic process protein catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process protein polyubiquitination protein K48-linked ubiquitination necroptotic process programmed necrotic cell death regulation of programmed cell death regulation of necroptotic process regulation of programmed necrotic cell death cellular response to stimulus positive regulation of response to biotic stimulus pattern recognition receptor signaling pathway regulation of signal transduction intracellular signal transduction cell communication immune response-activating signaling pathway positive regulation of immune response signal transduction innate immune response-activating signaling pathway regulation of innate immune response regulation of pattern recognition receptor signaling pathway positive regulation of defense response activation of innate immune response regulation of immune response activation of immune response cytoplasmic pattern recognition receptor signaling pathway intracellular receptor signaling pathway signaling negative regulation of signaling negative regulation of cytoplasmic pattern recognition receptor signaling pathway negative regulation of intracellular signal transduction regulation of cytoplasmic pattern recognition receptor signaling pathway negative regulation of cell communication positive regulation of response to stimulus positive regulation of response to external stimulus immune response-regulating signaling pathway regulation of intracellular signal transduction regulation of signaling positive regulation of innate immune response negative regulation of signal transduction negative regulation of immune system process regulation of cell communication protein deubiquitination regulation of protein modification process regulation of post-translational protein modification regulation of protein metabolic process regulation of primary metabolic process protein modification by small protein removal regulation of protein deubiquitination regulation of protein modification by small protein conjugation or removal protein monoubiquitination protein branched polyubiquitination regulation of developmental process cellular developmental process hemopoiesis cell development regulation of cell differentiation regulation of hematopoietic stem cell differentiation stem cell differentiation cell differentiation regulation of stem cell differentiation hematopoietic stem cell differentiation regulation of hematopoietic progenitor cell differentiation hematopoietic progenitor cell differentiation negative regulation of programmed cell death regulation of apoptotic process negative regulation of apoptotic process protein K29-linked ubiquitination positive regulation of protein metabolic process positive regulation of protein catabolic process regulation of protein catabolic process proteasomal protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process negative regulation of JNK cascade JNK cascade intracellular signaling cassette regulation of JNK cascade regulation of MAPK cascade MAPK cascade negative regulation of MAPK cascade negative regulation of DNA-binding transcription factor activity RNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process negative regulation of NF-kappaB transcription factor activity nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of molecular function nucleobase-containing compound biosynthetic process nucleic acid metabolic process regulation of molecular function regulation of DNA-binding transcription factor activity regulation of DNA-templated transcription protein K63-linked ubiquitination inflammatory response nucleotide-binding domain, leucine rich repeat containing receptor signaling pathway negative regulation of lymphocyte proliferation regulation of alpha-beta T cell activation regulation of leukocyte activation regulation of cell activation negative regulation of T cell proliferation negative regulation of cell adhesion negative regulation of leukocyte proliferation alpha-beta T cell proliferation T cell activation lymphocyte proliferation alpha-beta T cell activation regulation of leukocyte proliferation cell population proliferation regulation of CD4-positive, alpha-beta T cell proliferation negative regulation of CD4-positive, alpha-beta T cell activation negative regulation of T cell activation negative regulation of leukocyte cell-cell adhesion mononuclear cell proliferation regulation of cell population proliferation negative regulation of cell-cell adhesion regulation of leukocyte cell-cell adhesion negative regulation of leukocyte activation lymphocyte activation negative regulation of lymphocyte activation leukocyte proliferation leukocyte cell-cell adhesion leukocyte activation negative regulation of mononuclear cell proliferation regulation of alpha-beta T cell proliferation cell adhesion cell-cell adhesion CD4-positive, alpha-beta T cell activation regulation of cell-cell adhesion T cell proliferation regulation of lymphocyte proliferation CD4-positive, alpha-beta T cell proliferation negative regulation of cell population proliferation regulation of cell adhesion cell activation regulation of T cell activation negative regulation of cell activation regulation of T cell proliferation negative regulation of alpha-beta T cell proliferation regulation of CD4-positive, alpha-beta T cell activation negative regulation of CD4-positive, alpha-beta T cell proliferation regulation of mononuclear cell proliferation negative regulation of alpha-beta T cell activation regulation of lymphocyte activation	cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol intracellular organelle mitochondrion intracellular membrane-bounded organelle cell periphery cell cortex plasma membrane nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen protein-containing complex cytoplasmic vesicle intracellular vesicle endosome membrane early endosome endosome early endosome membrane endomembrane system cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane organelle membrane
B, C	Thioredoxin-interacting protein	enzyme regulator activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity ubiquitin protein ligase binding protein binding binding ubiquitin-like protein ligase binding enzyme binding	response to stimulus response to chemical response to xenobiotic stimulus developmental process epithelium development epidermal cell differentiation cellular developmental process epidermis development animal organ development tissue development epithelial cell differentiation skin development cell differentiation keratinocyte differentiation response to stimulus response to chemical response to xenobiotic stimulus developmental process epithelium development epidermal cell differentiation cellular developmental process epidermis development animal organ development tissue development epithelial cell differentiation skin development cell differentiation keratinocyte differentiation anatomical structure development cellular process response to metal ion response to calcium ion cellular response to stimulus cellular response to low-density lipoprotein particle stimulus cellular response to oxidised low-density lipoprotein particle stimulus response to endogenous stimulus response to lipoprotein particle response to nitrogen compound cellular response to lipoprotein particle stimulus response to ketone response to lipid response to hormone response to steroid hormone response to progesterone response to oxygen-containing compound response to organic cyclic compound protein localization establishment of protein localization cellular localization nitrogen compound transport transport establishment of localization localization protein transport cellular macromolecule localization macromolecule localization regulation of biological process positive regulation of programmed cell death regulation of cellular process regulation of apoptotic process biological regulation positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process programmed cell death positive regulation of cellular process nucleocytoplasmic transport nuclear transport intracellular transport protein localization to nucleus import into nucleus establishment of protein localization to organelle protein localization to organelle establishment of localization in cell protein import into nucleus intracellular protein transport response to hexose response to monosaccharide response to carbohydrate response to glucose cell surface receptor signaling pathway signaling platelet-derived growth factor receptor signaling pathway cell surface receptor protein tyrosine kinase signaling pathway cell communication signal transduction enzyme-linked receptor protein signaling pathway response to mechanical stimulus response to abiotic stimulus response to external stimulus cell population proliferation regulation of cell population proliferation defense response response to stress inflammatory response negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process transcription by RNA polymerase II negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of metabolic process primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process response to oxidative stress response to hydrogen peroxide response to reactive oxygen species cellular response to biotic stimulus response to tumor cell response to biotic stimulus cellular response to tumor cell negative regulation of cell division cell division regulation of cell division response to estradiol	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR035983	HECT, E3 ligase catalytic domain	Homologous Superfamily
A	IPR036020	WW domain superfamily	Homologous Superfamily
A	IPR050409	E3 ubiquitin-protein ligase	Family
A	IPR000008	C2 domain	Domain
A	IPR000569	HECT domain	Domain
A	IPR024928	E3 ubiquitin-protein ligase, SMURF1 type	Family
A	IPR035892	C2 domain superfamily	Homologous Superfamily
A	IPR001202	WW domain	Domain
B, C	IPR011021	Arrestin-like, N-terminal	Domain
B, C	IPR014756	Immunoglobulin E-set	Homologous Superfamily
B, C	IPR014752	Arrestin-like, C-terminal	Homologous Superfamily
B, C	IPR050357	Arrestin domain-containing protein	Family
B, C	IPR011022	Arrestin C-terminal-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q96J02	syndromic multisystem autoimmune disease due to ITCH deficiency astrocytic tumor glioblastoma large cell medulloblastoma melanoma osteosarcoma primitive neuroectodermal tumor spina bifida atypical teratoid rhabdoid tumor IgA glomerulonephritis malignant ependymoma non-small cell lung carcinoma ovarian cancer psoriasis esophageal adenocarcinoma syndromic multisystem autoimmune disease due to ITCH deficiency astrocytic tumor glioblastoma large cell medulloblastoma melanoma osteosarcoma primitive neuroectodermal tumor spina bifida atypical teratoid rhabdoid tumor IgA glomerulonephritis malignant ependymoma non-small cell lung carcinoma ovarian cancer psoriasis esophageal adenocarcinoma intellectual disability medulloblastoma oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia sarcoidosis
B, C	Pharos: Q9H3M7	rheumatoid arthritis diffuse large B-cell lymphoma endometriosis exocrine pancreatic carcinoma invasive ductal breast carcinoma malignant colon neoplasm malignant pancreatic neoplasm astrocytic tumor non-small cell lung carcinoma breast cancer Pick disease cancer psoriasis cystic fibrosis Diabetic Nephropathy rheumatoid arthritis diffuse large B-cell lymphoma endometriosis exocrine pancreatic carcinoma invasive ductal breast carcinoma malignant colon neoplasm malignant pancreatic neoplasm astrocytic tumor non-small cell lung carcinoma breast cancer Pick disease cancer psoriasis cystic fibrosis Diabetic Nephropathy glioblastoma lung adenocarcinoma malignant ependymoma medulloblastoma atopic eczema oligodendroglioma breast carcinoma pituitary cancer congenital anemia Down syndrome hydrolethalus syndrome lung cancer malignant mesothelioma B-cell chronic lymphocytic leukemia ovarian cancer breast fibroadenoma primitive neuroectodermal tumor Crohn disease tuberculosis diabetic kidney disease ductal breast carcinoma in situ

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B, C	ACE	RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 PSI-MOD : N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359
B, C	NH2	RESID: AA0041 , AA0042 , AA0043 , AA0044 , AA0045 , AA0046 , AA0049 , AA0050 , AA0051 , AA0052 , AA0053 , AA0054 , AA0354 , AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100 PSI-MOD : N-acetyl-L-alanine MOD:00050 , N-acetyl-L-aspartic acid MOD:00051 , N-acetyl-L-cysteine MOD:00052 , N-acetyl-S-archeol-cysteine MOD:00897 , N-acetyl-L-glutamic acid MOD:00053 , N-acetyl-L-glutamine MOD:00054 , N-acetylglycine MOD:00055 , N-acetyl-L-methionine MOD:00058 , N-acetyl-L-proline MOD:00059 , N-acetyl-L-serine MOD:00060 , N,O-diacetylated L-serine MOD:00648 , N-acetyl-L-threonine MOD:00061 , N-acetyl-L-tyrosine MOD:00062 , N-acetyl-L-valine MOD:00063 , N2-acetyl-L-arginine MOD:00359 , L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109

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.