Annotations: 1A5E

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1a5ea_	Alpha and beta proteins (a+b)	beta-hairpin-alpha-hairpin repeat	Ankyrin repeat	Ankyrin repeat	Cell cycle inhibitor p16ink4A	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	Ankyrin repeat	8044602	3000154	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	Ank_2	e1a5eA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.25.40.20	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Ankyrin repeat-containing domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	TUMOR SUPPRESSOR P16INK4A	transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding binding DNA-binding transcription factor binding NF-kappaB binding kinase binding enzyme binding protein kinase binding enzyme regulator activity enzyme inhibitor activity protein kinase regulator activity protein kinase inhibitor activity molecular function inhibitor activity transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding binding DNA-binding transcription factor binding NF-kappaB binding kinase binding enzyme binding protein kinase binding enzyme regulator activity enzyme inhibitor activity protein kinase regulator activity protein kinase inhibitor activity molecular function inhibitor activity cyclin-dependent protein serine/threonine kinase inhibitor activity molecular function regulator activity cyclin-dependent protein serine/threonine kinase regulator activity protein serine/threonine kinase inhibitor activity kinase inhibitor activity kinase regulator activity RNA binding organic cyclic compound binding nucleic acid binding	regulation of cellular process cellular biosynthetic process negative regulation of biological process RNA metabolic process negative regulation of cellular 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 cellular process cellular biosynthetic process negative regulation of biological process RNA metabolic process negative regulation of cellular 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 cellular metabolic process negative regulation of metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process 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 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 phosphorylation negative regulation of phosphate metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process negative regulation of phosphorus metabolic process regulation of phosphorus metabolic process regulation of phosphorylation negative regulation of phosphorylation phosphorus metabolic process positive regulation of programmed cell death positive regulation of smooth muscle cell apoptotic process muscle cell apoptotic process smooth muscle cell apoptotic process regulation of apoptotic process positive regulation of biological process regulation of muscle cell apoptotic process regulation of programmed cell death cell death regulation of smooth muscle cell apoptotic process positive regulation of apoptotic process positive regulation of muscle cell apoptotic process apoptotic process programmed cell death positive regulation of cellular process negative regulation of cell population proliferation cell population proliferation regulation of cell population proliferation regulation of cell-substrate adhesion regulation of cell adhesion cell-substrate adhesion negative regulation of cell-matrix adhesion negative regulation of cell adhesion cell adhesion cell-matrix adhesion regulation of cell-matrix adhesion negative regulation of cell-substrate adhesion replicative senescence regulation of growth regulation of cellular component organization growth negative regulation of cell growth regulation of cell growth cell growth cellular component organization negative regulation of growth cellular component organization or biogenesis cell cycle regulation of cell cycle leukocyte apoptotic process macrophage apoptotic process positive regulation of myeloid cell apoptotic process positive regulation of macrophage apoptotic process positive regulation of leukocyte apoptotic process myeloid cell apoptotic process regulation of leukocyte apoptotic process regulation of macrophage apoptotic process inflammatory cell apoptotic process regulation of myeloid cell apoptotic process regulation of cell cycle phase transition regulation of cell cycle process cell cycle phase transition regulation of cell cycle G1/S phase transition cell cycle G1/S phase transition mitotic cell cycle regulation of mitotic cell cycle phase transition regulation of mitotic cell cycle regulation of G1/S transition of mitotic cell cycle mitotic cell cycle process G1/S transition of mitotic cell cycle cell cycle process mitotic cell cycle phase transition regulation of catalytic activity negative regulation of cell cycle negative regulation of catalytic activity regulation of cyclin-dependent protein kinase activity regulation of transferase activity negative regulation of kinase activity negative regulation of transferase activity regulation of cyclin-dependent protein serine/threonine kinase activity negative regulation of protein modification process protein modification process negative regulation of protein metabolic process protein phosphorylation regulation of protein metabolic process regulation of molecular function regulation of kinase activity negative regulation of protein phosphorylation macromolecule modification regulation of protein serine/threonine kinase activity regulation of protein modification process regulation of protein phosphorylation negative regulation of cyclin-dependent protein serine/threonine kinase activity negative regulation of protein serine/threonine kinase activity protein metabolic process negative regulation of cyclin-dependent protein kinase activity negative regulation of molecular function negative regulation of protein kinase activity regulation of protein kinase activity cellular response to stimulus cellular response to stress response to stimulus response to stress cellular senescence negative regulation of DNA-binding transcription factor activity negative regulation of NF-kappaB transcription factor activity regulation of DNA-binding transcription factor activity small GTPase-mediated signal transduction signaling Ras protein signal transduction intracellular signal transduction cell communication intracellular signaling cassette signal transduction	intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromatin chromosome cellular anatomical entity senescence-associated heterochromatin focus heterochromatin non-membrane-bounded organelle cytoplasm cytosol membrane-bounded organelle nucleus intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromatin chromosome cellular anatomical entity senescence-associated heterochromatin focus heterochromatin non-membrane-bounded organelle cytoplasm cytosol membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A	IPR050776	Ankyrin Repeat and Cyclin-Dependent Kinase Inhibitor	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P42771	melanoma plasma cell myeloma cutaneous melanoma malignant glioma cancer melanoma and neural system tumor syndrome dysplastic nevus syndrome adrenal cortex carcinoma melanoma-pancreatic cancer syndrome diffuse large B-cell lymphoma esophageal adenocarcinoma familial melanoma lymphoma non-small cell lung carcinoma Sezary syndrome melanoma plasma cell myeloma cutaneous melanoma malignant glioma cancer melanoma and neural system tumor syndrome dysplastic nevus syndrome adrenal cortex carcinoma melanoma-pancreatic cancer syndrome diffuse large B-cell lymphoma esophageal adenocarcinoma familial melanoma lymphoma non-small cell lung carcinoma Sezary syndrome Li-Fraumeni syndrome breast carcinoma malignant mesothelioma head and neck squamous cell carcinoma pancreatic ductal adenocarcinoma thymoma urinary bladder cancer esophageal squamous cell carcinoma nasopharyngeal carcinoma glaucoma neuroblastoma lung adenocarcinoma exocrine pancreatic carcinoma poisoning vulvar lichen sclerosus breast cancer gastric cancer glioblastoma adenocarcinoma primary cutaneous T-cell non-Hodgkin lymphoma squamous cell carcinoma thymic carcinoma trisomy peripheral neuropathy mixed glioma esophageal cancer Neoplasm Invasiveness acute lymphoblastic leukemia perineurioma peripheral nervous system disease liver cancer bone disease tubular adenocarcinoma lung cancer granular cell carcinoma peripheral nervous system neoplasm brain aneurysm ulcerative colitis pituitary cancer brain glioma urinary bladder neoplasm myeloid neoplasm lung disease nasopharyngeal disease neoplasm of neck abdominal aortic aneurysm Burkitt lymphoma nerve sheath neoplasm carotid artery disease granulomatous slack skin disease prostate carcinoma oral cavity neoplasm hematologic disease adrenal gland cancer ovarian carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atypical teratoid rhabdoid tumor cribriform carcinoma of breast large cell medulloblastoma benign neoplasm melanoma, cutaneous malignant, susceptibility to, 1 biliary tract neoplasm digestive system disease liver neoplasm brain cancer lung benign neoplasm urogenital neoplasm myocardial infarction eye disease familial pancreatic carcinoma gastric neoplasm glioma cataract open-angle glaucoma adrenal carcinoma psoriasis osteosarcoma hepatocellular carcinoma skin basal cell carcinoma congenital anemia pancreatic neoplasm B-cell acute lymphoblastic leukemia cutaneous lupus erythematosus leukemia depressive disorder mesothelioma pilocytic astrocytoma low tension glaucoma brain disease plasma cell neoplasm uterine disease precancerous condition lymphatic system disease brainstem cancer neoplasm of esophagus major depressive disorder breast disease acute T cell leukemia primary cutaneous T-cell lymphoma primitive neuroectodermal tumor childhood acute lymphoblastic leukemia oral cavity cancer heart disease malignant pancreatic neoplasm colorectal cancer ovarian cancer pancreatic intraductal papillary-mucinous neoplasm hereditary diffuse gastric adenocarcinoma astrocytic tumor skin disease cribriform carcinoma inflammatory bowel disease benign mesothelioma thoracic aortic aneurysm peripheral arterial disease benign neoplasm of pancreas

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.