3P1N

Crystal structure of human 14-3-3 sigma in complex with TASK-3 peptide

External Resource: Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3p1na1	All alpha proteins	alpha-alpha superhelix	14-3-3 protein	14-3-3 protein	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d3p1na2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

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	e3p1nA1	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 (4.3.0)

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 biological process regulation of growth regulation of cellular process regulation of cellular component organization positive regulation of biological process biological regulation growth 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 biological process regulation of growth regulation of cellular process regulation of cellular component organization positive regulation of biological process biological regulation growth 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 localization within membrane regulation of protein localization to cell periphery 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 cellular response to stimulus signaling intracellular signal transduction cell communication protein kinase A signaling signal transduction cell adhesion cell-cell adhesion regulation of cell adhesion regulation of cell-cell adhesion 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 negative regulation of cellular metabolic process 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 cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process negative regulation of molecular function regulation of cellular metabolic process 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 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 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 cellular biosynthetic process 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 negative regulation of cellular biosynthetic process regulation of cellular biosynthetic 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 extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol intracellular organelle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol intracellular organelle nucleus intracellular membrane-bounded organelle
B [auth P]	6-mer peptide from Potassium channel subfamily K member 9	monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium ion leak channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity narrow pore channel activity leak channel activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium ion leak channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity narrow pore channel activity leak channel activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity gated channel activity outward rectifier potassium channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity voltage-gated potassium channel activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport monoatomic ion transmembrane transport potassium ion transmembrane transport inorganic ion transmembrane transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport cellular process localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport monoatomic ion transmembrane transport potassium ion transmembrane transport inorganic ion transmembrane transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport cellular process stabilization of membrane potential biological regulation regulation of biological quality regulation of membrane potential import into cell import across plasma membrane inorganic cation import across plasma membrane inorganic ion import across plasma membrane potassium ion import across plasma membrane	cell periphery plasma membrane membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure transport vesicle synapse intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle presynapse cytoplasmic vesicle cell periphery plasma membrane membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure transport vesicle synapse intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle presynapse cytoplasmic vesicle synaptic vesicle organelle cell junction secretory vesicle cytoplasm vesicle exocytic vesicle

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]	IPR003280	Two pore domain potassium channel	Family
B [auth P]	IPR003092	Two pore domain potassium channel, TASK family	Family
B [auth P]	IPR013099	Potassium channel domain	Domain
B [auth P]	IPR005407	Potassium channel subfamily K member 9	Family

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 atypical teratoid rhabdoid tumor spina bifida 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: Q9NPC2	Birk-Barel syndrome childhood absence epilepsy absence epilepsy intellectual disability juvenile absence epilepsy pilocytic astrocytoma glioblastoma malignant ependymoma osteosarcoma medulloblastoma ovarian cancer subependymal giant cell astrocytoma

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	CSO	Parent Component: CYS RESID: AA0205 PSI-MOD : L-cysteine sulfenic acid MOD:00210
B [auth P]	SEP	Parent Component: SER RESID: AA0205 , AA0037 PSI-MOD : L-cysteine sulfenic acid MOD:00210 , 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.