6QIU

Crystal structure of 14-3-3 sigma in complex with Ataxin-1 Ser776 phosphopeptide

External Resource: Annotation

Domain Annotation: SCOP2 Classification
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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	14-3-3 protein	8082819	3001329	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	14-3-3	e6qiuA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: 14-3-3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.190.20	Mainly Alpha	Up-down Bundle	Delta-Endotoxin	domain 1	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00244	14-3-3 protein (14-3-3)	14-3-3 protein	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	14-3-3 protein sigma	phosphoprotein binding protein binding binding phosphoserine residue binding protein phosphorylated amino acid binding enzyme regulator activity protein kinase inhibitor activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity protein kinase C inhibitor activity protein kinase regulator activity protein serine/threonine kinase inhibitor activity kinase inhibitor activity phosphoprotein binding protein binding binding phosphoserine residue binding protein phosphorylated amino acid binding enzyme regulator activity protein kinase inhibitor activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity protein kinase C inhibitor activity protein kinase regulator activity protein serine/threonine kinase inhibitor activity kinase inhibitor activity kinase regulator activity molecular sequestering activity protein sequestering activity kinase binding enzyme binding protein kinase binding cell adhesion molecule binding cadherin binding identical protein binding	regulation of growth regulation of biological process regulation of cellular process regulation of cellular component organization biological regulation growth positive regulation of biological process positive regulation of cell growth regulation of cell growth cell growth cellular component organization positive regulation of growth cellular process cellular component organization or biogenesis regulation of growth regulation of biological process regulation of cellular process regulation of cellular component organization biological regulation growth positive regulation of biological process positive regulation of cell growth regulation of cell growth cell growth cellular component organization positive regulation of growth cellular process cellular component organization or biogenesis positive regulation of cellular process protein localization localization cellular localization cellular macromolecule localization macromolecule localization regulation of localization regulation of protein localization negative regulation of biological process negative regulation of protein localization to plasma membrane negative regulation of cellular process regulation of protein localization to membrane negative regulation of protein localization protein localization to cell periphery protein localization to plasma membrane regulation of protein localization to cell periphery localization within membrane protein localization to membrane negative regulation of protein localization to membrane regulation of cellular localization negative regulation of protein localization to cell periphery regulation of protein localization to plasma membrane establishment of protein localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport intracellular transport protein export from nucleus establishment of localization protein transport establishment of localization in cell nuclear export intracellular protein transport epidermal cell division cell division regulation of epidermal cell division regulation of cell division developmental process establishment of skin barrier epithelium development skin development skin epidermis development epidermis development anatomical structure development animal organ development tissue development regulation of defense response regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms negative regulation of response to biotic stimulus response to stimulus regulation of response to external stimulus response to biotic stimulus response to stress regulation of response to stress innate immune response regulation of immune system process response to external biotic stimulus negative regulation of response to stimulus immune response response to other organism defense response regulation of innate immune response negative regulation of immune response defense response to symbiont response to external stimulus regulation of response to stimulus negative regulation of immune system process immune system process defense response to other organism negative regulation of response to external stimulus negative regulation of defense response regulation of immune response negative regulation of innate immune response cell population proliferation epithelial cell proliferation keratinocyte proliferation cell adhesion cell-cell adhesion regulation of cell adhesion regulation of cell-cell adhesion cellular response to stimulus signaling signal transduction cell communication negative regulation of cell population proliferation regulation of stem cell proliferation negative regulation of stem cell proliferation stem cell proliferation regulation of cell population proliferation positive regulation of cell adhesion regulation of protein modification process regulation of catalytic activity regulation of protein phosphorylation negative regulation of phosphate metabolic process negative regulation of catalytic activity regulation of transferase activity regulation of primary metabolic process negative regulation of kinase activity negative regulation of transferase activity regulation of phosphate metabolic process phosphate-containing compound metabolic process negative regulation of protein modification process protein metabolic process phosphorus metabolic process protein modification process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process protein phosphorylation phosphorylation regulation of protein metabolic process negative regulation of metabolic process negative regulation of molecular function primary metabolic process negative regulation of protein kinase activity regulation of protein kinase activity regulation of macromolecule metabolic process regulation of molecular function regulation of kinase activity negative regulation of protein phosphorylation macromolecule modification negative regulation of phosphorus metabolic process regulation of phosphorylation regulation of phosphorus metabolic process metabolic process macromolecule metabolic process negative regulation of phosphorylation regulation of metabolic process positive regulation of nucleocytoplasmic transport positive regulation of establishment of protein localization positive regulation of protein transport positive regulation of intracellular transport regulation of protein export from nucleus regulation of intracellular transport regulation of transport regulation of establishment of protein localization regulation of nucleocytoplasmic transport regulation of protein transport positive regulation of protein export from nucleus positive regulation of transport positive regulation of protein localization regulation of intracellular protein transport positive regulation of intracellular protein transport cell death intracellular signal transduction apoptotic signaling pathway cellular response to stress DNA damage response intrinsic apoptotic signaling pathway in response to DNA damage apoptotic process intrinsic apoptotic signaling pathway programmed cell death cAMP/PKA signal transduction intracellular signaling cassette multicellular organismal process keratinization epidermal cell differentiation cellular developmental process epithelial cell differentiation cell differentiation keratinocyte differentiation keratinocyte development cell development epithelial cell development regulation of keratinocyte proliferation negative regulation of keratinocyte proliferation regulation of epithelial cell proliferation negative regulation of epithelial cell proliferation cell cycle regulation of cell cycle RNA 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 nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic 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 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 regulation of macromolecule biosynthetic process regulation of DNA-templated transcription negative regulation of RNA metabolic process apoptotic mitochondrial changes release of cytochrome c from mitochondria organelle organization mitochondrion organization regulation of developmental process regulation of epidermal cell differentiation regulation of cell differentiation regulation of epithelial cell differentiation positive regulation of developmental process multicellular organism development positive regulation of cell differentiation regulation of multicellular organismal process regulation of multicellular organismal development positive regulation of epidermis development positive regulation of epithelial cell differentiation regulation of epidermis development positive regulation of epidermal cell differentiation	extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol intracellular organelle extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol intracellular organelle nucleus intracellular membrane-bounded organelle
B [auth P]	Ataxin-1 phosphopeptide	chromatin binding binding RNA binding nucleic acid binding DNA binding poly(G) binding poly-purine tract binding single-stranded RNA binding poly-pyrimidine tract binding poly(U) RNA binding identical protein binding protein binding	regulation of cellular process 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 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 regulation of cellular process 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 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 negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation 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 cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process developmental process multicellular organism development multicellular organismal process head development central nervous system development anatomical structure development animal organ development brain development nervous system development system development behavior system process learning learning or memory nervous system process cognition memory RNA processing localization cellular localization nucleocytoplasmic transport transport nuclear transport establishment of localization in cell intracellular transport nuclear export establishment of localization biological process involved in intraspecies interaction between organisms social behavior transcription by RNA polymerase II regulation of transcription by RNA polymerase II negative regulation of transcription by RNA polymerase II	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle nuclear periphery nuclear lumen nuclear matrix intracellular membraneless organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle nuclear periphery nuclear lumen nuclear matrix intracellular membraneless organelle nucleolus membraneless organelle cytoplasm cytosol nucleoplasm inclusion body nuclear inclusion body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR023409	14-3-3 protein, conserved site	Conserved Site
A	IPR023410	14-3-3 domain	Domain
A	IPR037435	14-3-3 protein sigma	Family
A	IPR036815	14-3-3 domain superfamily	Homologous Superfamily
A	IPR000308	14-3-3 protein	Family
B [auth P]	IPR003652	Ataxin, AXH domain	Domain
B [auth P]	IPR043404	ATAXIN1-like	Family
B [auth P]	IPR020997	Ataxin-1, N-terminal	Domain
B [auth P]	IPR036096	Ataxin, AXH domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P31947	esophageal squamous cell carcinoma squamous cell carcinoma esophageal cancer Lymphatic Metastasis keloid lung adenocarcinoma malignant pancreatic neoplasm non-small cell lung carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm sarcoidosis cystic fibrosis interstitial cystitis malignant mesothelioma oral cavity neoplasm esophageal squamous cell carcinoma squamous cell carcinoma esophageal cancer Lymphatic Metastasis keloid lung adenocarcinoma malignant pancreatic neoplasm non-small cell lung carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm sarcoidosis cystic fibrosis interstitial cystitis malignant mesothelioma oral cavity neoplasm pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia spina bifida atypical teratoid rhabdoid tumor diabetes mellitus malignant ependymoma neoplasm of esophagus osteosarcoma pancreatic intraductal papillary-mucinous carcinoma psoriasis breast cancer ductal breast carcinoma in situ hepatocellular carcinoma large cell medulloblastoma lung cancer malignant glioma
B [auth P]	Pharos: P54253	spinocerebellar ataxia type 1 neurodegenerative disease autosomal dominant cerebellar ataxia retinal disease atrial fibrillation medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia rheumatoid arthritis spinocerebellar ataxia type 4 amyotrophic lateral sclerosis spinocerebellar ataxia type 7 atypical teratoid rhabdoid tumor tuberculosis cerebellar ataxia spinocerebellar ataxia type 1 neurodegenerative disease autosomal dominant cerebellar ataxia retinal disease atrial fibrillation medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia rheumatoid arthritis spinocerebellar ataxia type 4 amyotrophic lateral sclerosis spinocerebellar ataxia type 7 atypical teratoid rhabdoid tumor tuberculosis cerebellar ataxia Degenerative Diseases, Central Nervous System glioblastoma large cell medulloblastoma malignant glioma ovarian cancer primitive neuroectodermal tumor spinocerebellar ataxia type 5 astrocytic tumor subependymal giant cell astrocytoma hepatocellular carcinoma lung cancer malignant mesothelioma pancreatic intraductal papillary-mucinous carcinoma spinocerebellar ataxia type 2 spinocerebellar ataxia type 6 systemic lupus erythematosus B-cell chronic lymphocytic leukemia cystic fibrosis dermatomyositis hereditary ataxia malignant ependymoma

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth P]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

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.