Annotations: 6CIV

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	p21	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 protein-containing complex binding binding catalytic activity, acting on a protein 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 protein-containing complex binding binding catalytic activity, acting on a protein cyclin-dependent protein kinase activating kinase activity molecular function activator activity kinase activity protein kinase activity transferase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups kinase activator activity enzyme activator activity protein kinase activator activity catalytic activity ubiquitin protein ligase binding protein binding ubiquitin-like protein ligase binding enzyme binding cation binding ion binding metal ion binding small molecule binding molecular sequestering activity protein sequestering activity cyclin binding kinase binding protein kinase binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process response to chemical response to xenobiotic stimulus developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process response to chemical response to xenobiotic stimulus developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development stress-induced premature senescence cellular metabolic process cellular senescence metabolic process regulation of protein binding regulation of molecular function negative regulation of protein binding negative regulation of binding regulation of binding biological regulation negative regulation of molecular function cellular response to heat response to heat response to abiotic stimulus response to temperature stimulus response to X-ray response to ionizing radiation response to radiation cellular developmental process cell development epithelial cell differentiation intestinal epithelial cell maturation columnar/cuboidal epithelial cell development cell differentiation cell maturation epithelium development digestive system development intestinal epithelial cell differentiation tube development intestinal epithelial cell development developmental maturation tissue development digestive tract development epithelial cell development anatomical structure maturation columnar/cuboidal epithelial cell differentiation epithelial cell maturation columnar/cuboidal epithelial cell maturation replicative senescence regulation of cellular process regulation of protein modification process regulation of protein phosphorylation negative regulation of biological process negative regulation of phosphate metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process organic substance metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process negative regulation of protein modification process negative regulation of cellular process protein metabolic process protein modification process phosphorus metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biological process organonitrogen compound metabolic process protein phosphorylation phosphorylation regulation of protein metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process negative regulation of protein phosphorylation macromolecule modification negative regulation of phosphorus metabolic process regulation of phosphorylation regulation of phosphorus metabolic process macromolecule metabolic process negative regulation of phosphorylation regulation of metabolic process positive regulation of DNA replication positive regulation of biological process nucleobase-containing compound metabolic process positive regulation of metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of nucleobase-containing compound metabolic process DNA metabolic process nucleic acid metabolic process organic cyclic compound metabolic process DNA replication positive regulation of DNA metabolic process regulation of DNA metabolic process regulation of DNA replication tissue regeneration developmental growth growth regeneration cell population proliferation epithelial cell proliferation keratinocyte proliferation cellular response to ionizing radiation cellular response to radiation cellular response to abiotic stimulus cellular response to environmental stimulus regulation of growth regulation of cellular component organization negative regulation of cell growth regulation of cell growth cell growth cellular component organization negative regulation of growth cellular component organization or biogenesis protein localization establishment of protein localization cellular localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport organic substance transport intracellular transport protein localization to nucleus establishment of localization localization import into nucleus establishment of protein localization to organelle protein transport cellular macromolecule localization macromolecule localization protein localization to organelle establishment of localization in cell protein import into nucleus intracellular protein transport response to toxic substance 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 cell cycle regulation of cell cycle cell cycle process embryo development ending in birth or egg hatching chordate embryonic development embryo development in utero embryonic development response to organic substance response to ketone response to lipid response to endogenous stimulus response to alcohol response to glucocorticoid response to oxygen-containing compound response to corticosterone response to mineralocorticoid response to corticosteroid response to hormone response to steroid hormone response to organic cyclic compound response to light stimulus response to UV response to UV-B cellular response to UV-B cellular response to light stimulus cellular response to UV fibroblast proliferation mitotic cell cycle process G1/S transition of mitotic cell cycle mitotic cell cycle mitotic cell cycle phase transition cell cycle G2/M phase transition regulation of G2/M transition of mitotic cell cycle G2/M transition of mitotic cell cycle regulation of cell cycle G2/M phase transition regulation of mitotic cell cycle phase transition regulation of mitotic cell cycle response to aldosterone positive regulation of phosphorylation regulation of catalytic activity regulation of transferase activity positive regulation of phosphate metabolic process positive regulation of protein phosphorylation positive regulation of phosphorus metabolic process positive regulation of kinase activity regulation of kinase activity positive regulation of protein metabolic process positive regulation of cellular metabolic process positive regulation of molecular function positive regulation of protein modification process positive regulation of protein kinase activity positive regulation of cellular process positive regulation of transferase activity positive regulation of catalytic activity regulation of protein kinase activity positive regulation of cell population proliferation positive regulation of B cell proliferation regulation of leukocyte activation regulation of cell activation lymphocyte activation leukocyte proliferation leukocyte activation positive regulation of lymphocyte activation positive regulation of cell activation regulation of B cell proliferation lymphocyte proliferation regulation of B cell activation positive regulation of leukocyte activation positive regulation of mononuclear cell proliferation regulation of multicellular organismal process regulation of immune system process positive regulation of immune system process regulation of lymphocyte proliferation regulation of leukocyte proliferation B cell activation cell activation positive regulation of lymphocyte proliferation B cell proliferation positive regulation of B cell activation regulation of cell population proliferation mononuclear cell proliferation immune system process positive regulation of leukocyte proliferation regulation of mononuclear cell proliferation positive regulation of multicellular organismal process regulation of lymphocyte activation response to nutrient levels cellular response to amino acid starvation cellular response to starvation cellular response to nutrient levels response to amino acid starvation response to starvation regulation of cyclin-dependent protein kinase activity regulation of cyclin-dependent protein serine/threonine kinase activity regulation of protein serine/threonine kinase activity response to arsenic-containing substance regulation of vascular associated smooth muscle cell proliferation negative regulation of cell population proliferation regulation of smooth muscle cell proliferation negative regulation of vascular associated smooth muscle cell proliferation smooth muscle cell proliferation negative regulation of smooth muscle cell proliferation muscle cell proliferation vascular associated smooth muscle cell proliferation signaling DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator signal transduction by p53 class mediator DNA damage response, signal transduction by p53 class mediator intracellular signal transduction cell communication DNA damage response, signal transduction resulting in transcription signal transduction in response to DNA damage signal transduction negative regulation of catalytic activity negative regulation of kinase activity negative regulation of transferase activity negative regulation of cyclin-dependent protein kinase activity negative regulation of protein kinase activity epidermal cell differentiation epidermis development skin development keratinocyte differentiation cell death apoptotic signaling pathway apoptotic process intrinsic apoptotic signaling pathway programmed cell death cellular response to gamma radiation response to gamma radiation negative regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death negative regulation of apoptotic process cellular biosynthetic process regulation of DNA biosynthetic process nucleic acid biosynthetic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of biosynthetic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process negative regulation of DNA metabolic process regulation of macromolecule biosynthetic process DNA biosynthetic process negative regulation of DNA biosynthetic process response to organonitrogen compound response to nitrogen compound regulation of fibroblast proliferation positive regulation of fibroblast proliferation reactive oxygen species metabolic process positive regulation of reactive oxygen species metabolic process regulation of reactive oxygen species metabolic process small GTPase-mediated signal transduction Ras protein signal transduction intracellular signaling cassette oncogene-induced cell senescence DNA damage checkpoint signaling mitotic G2 DNA damage checkpoint signaling negative regulation of cell cycle negative regulation of mitotic cell cycle mitotic G2/M transition checkpoint mitotic DNA integrity checkpoint signaling mitotic DNA damage checkpoint signaling negative regulation of cell cycle phase transition negative regulation of mitotic cell cycle phase transition DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling mitotic cell cycle checkpoint signaling negative regulation of cell cycle G2/M phase transition negative regulation of G2/M transition of mitotic cell cycle regulation of developmental growth regulation of developmental process negative regulation of developmental process negative regulation of cardiac muscle tissue regeneration negative regulation of developmental growth cardiac muscle tissue regeneration regulation of cardiac muscle tissue regeneration negative regulation of G1/S transition of mitotic cell cycle negative regulation of cell cycle G1/S phase transition regulation of G1/S transition of mitotic cell cycle mitotic G1/S transition checkpoint signaling mitotic G1 DNA damage checkpoint signaling DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest wound healing response to wounding positive regulation of programmed cell death intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator intrinsic apoptotic signaling pathway by p53 class mediator intrinsic apoptotic signaling pathway in response to DNA damage animal organ regeneration gene expression regulation of gene expression negative regulation of gene expression response to oxygen levels response to hyperoxia response to increased oxygen levels	protein kinase complex transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex serine/threonine protein kinase complex cyclin-dependent protein kinase holoenzyme complex transferase complex intracellular anatomical structure cytoplasm cellular anatomical entity cytosol perinuclear region of cytoplasm membrane-bounded organelle intracellular organelle protein kinase complex transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex serine/threonine protein kinase complex cyclin-dependent protein kinase holoenzyme complex transferase complex intracellular anatomical structure cytoplasm cellular anatomical entity cytosol perinuclear region of cytoplasm membrane-bounded organelle intracellular organelle organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle PCNA-p21 complex membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle nucleoplasm nuclear body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C]	IPR003175	Cyclin-dependent kinase inhibitor domain	Domain
A [auth C]	IPR044898	Cyclin-dependent kinase inhibitor domain superfamily	Homologous Superfamily
A [auth C]	IPR029841	Cyclin-dependent kinase inhibitor 1	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth C]	Pharos: P38936	transitional cell carcinoma urinary bladder cancer esophageal squamous cell carcinoma malignant mesothelioma papilloma prostate cancer Hypertrophy kidney disease gastric cancer squamous papilloma intestinal cancer malignant colon neoplasm HIV infectious disease atrial fibrillation cancer transitional cell carcinoma urinary bladder cancer esophageal squamous cell carcinoma malignant mesothelioma papilloma prostate cancer Hypertrophy kidney disease gastric cancer squamous papilloma intestinal cancer malignant colon neoplasm HIV infectious disease atrial fibrillation cancer multiple endocrine neoplasia type 1 gastric neoplasm hereditary diffuse gastric adenocarcinoma abdominal aortic aneurysm benign colon neoplasm colonic neoplasm diabetic kidney disease Duchenne muscular dystrophy oligodendroglioma ovarian cancer papillomatosis glioblastoma tuberculosis ischemia reperfusion injury urinary bladder neoplasm astrocytic tumor large cell medulloblastoma lung benign neoplasm breast disease colorectal cancer myopathy ductal breast carcinoma in situ open-angle glaucoma eye disease pancreatic ductal adenocarcinoma gastric carcinoma pituitary cancer hematologic disease psoriasis subependymal giant cell astrocytoma intestinal neoplasm type 2 diabetes mellitus juvenile dermatomyositis limb-girdle muscular dystrophy lung cancer congestive heart failure dilated cardiomyopathy Emery-Dreifuss muscular dystrophy osteosarcoma facioscapulohumeral muscular dystrophy

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.