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UniProtKB/Swiss-Prot entry P46527


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name CDN1B_HUMAN
Primary accession number P46527
Secondary accession numbers Q16307 Q5U0H2 Q9BUS6
Integrated into Swiss-Prot on November 1, 1995
Sequence was last modified on November 1, 1995 (Sequence version 1)
Annotations were last modified on    June 16, 2009 (Entry version 106)
Name and origin of the protein
Protein name Cyclin-dependent kinase inhibitor 1B
Synonyms Cyclin-dependent kinase inhibitor p27
p27Kip1
Gene name
Name: CDKN1B
Synonyms: KIP1
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA], AND PROTEIN SEQUENCE OF 28-79 AND 104-152.
TISSUE=Kidney;
DOI=10.1016/0092-8674(94)90572-X; PubMed=8033212 [NCBI, ExPASy, EBI, Israel, Japan]
Polyak K., Lee M.-H., Erdjument-Bromage H., Koff A., Roberts J.M., Tempst P., Massague J.;
"Cloning of p27Kip1, a cyclin-dependent kinase inhibitor and a potential mediator of extracellular antimitogenic signals.";
Cell 78:59-66(1994).
[2]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
PubMed=7882309 [NCBI, ExPASy, EBI, Israel, Japan]
Pietenpol J.A., Bohlander S.K., Sato Y., Papadopoulos N., Liu B., Friedman C., Trask B.J., Roberts J.M., Kinzler K.W., Rowley J.D.;
"Assignment of the human p27Kip1 gene to 12p13 and its analysis in leukemias.";
Cancer Res. 55:1206-1210(1995).
[3]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], AND VARIANT GLY-109.
Kalnine N., Chen X., Rolfs A., Halleck A., Hines L., Eisenstein S., Koundinya M., Raphael J., Moreira D., Kelley T., LaBaer J., Lin Y., Phelan M., Farmer A.;
"Cloning of human full-length CDSs in BD Creator(TM) system donor vector.";
Submitted (OCT-2004) to the EMBL/GenBank/DDBJ databases.
[4]
NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND VARIANTS TRP-15 AND GLY-109.
NIEHS SNPs program;
Submitted (FEB-2002) to the EMBL/GenBank/DDBJ databases.
[5]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], AND VARIANT GLY-109.
TISSUE=Cervix;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[6]
UBIQUITINATION, AND PHOSPHORYLATION.
PubMed=10323868 [NCBI, ExPASy, EBI, Israel, Japan]
Montagnoli A., Fiore F., Eytan E., Carrano A.C., Draetta G.F., Hershko A., Pagano M.;
"Ubiquitination of p27 is regulated by Cdk-dependent phosphorylation and trimeric complex formation.";
Genes Dev. 13:1181-1189(1999).
[7]
PHOSPHORYLATION AT SER-10, AND FUNCTION.
DOI=10.1074/jbc.M001144200; PubMed=10831586 [NCBI, ExPASy, EBI, Israel, Japan]
Ishida N., Kitagawa M., Hatakeyama S., Nakayama K.;
"Phosphorylation at serine 10, a major phosphorylation site of p27(Kip1), increases its protein stability.";
J. Biol. Chem. 275:25146-25154(2000).
[8]
INTERACTION WITH UHMK1, PHOSPHORYLATION AT SER-10, SUBCELLULAR LOCATION, AND MUTAGENESIS OF SER-10 AND THR-187.
DOI=10.1093/emboj/cdf343; PubMed=12093740 [NCBI, ExPASy, EBI, Israel, Japan]
Boehm M., Yoshimoto T., Crook M.F., Nallamshetty S., True A., Nabel G.J., Nabel E.G.;
"A growth factor-dependent nuclear kinase phosphorylates p27(Kip1) and regulates cell cycle progression.";
EMBO J. 21:3390-3401(2002).
[9]
PHOSPHORYLATION AT SER-10; THR-187 AND THR-198, INTERACTION WITH AKT1 AND YWHAQ, SUBCELLULAR LOCATION, AND MUTAGENESIS OF SER-10; THR-157; THR-187 AND THR-198.
DOI=10.1074/jbc.M203668200; PubMed=12042314 [NCBI, ExPASy, EBI, Israel, Japan]
Fujita N., Sato S., Katayama K., Tsuruo T.;
"Akt-dependent phosphorylation of p27Kip1 promotes binding to 14-3-3 and cytoplasmic localization.";
J. Biol. Chem. 277:28706-28713(2002).
[10]
PHOSPHORYLATION AT THR-157, SUBCELLULAR LOCATION, ASSOCIATED WITH BREAST CANCER, AND MUTAGENESIS OF THR-157.
DOI=10.1038/nm762; PubMed=12244303 [NCBI, ExPASy, EBI, Israel, Japan]
Viglietto G., Motti M.L., Bruni P., Melillo R.M., D'Alessio A., Califano D., Vinci F., Chiappetta G., Tsichlis P., Bellacosa A., Fusco A., Santoro M.;
"Cytoplasmic relocalization and inhibition of the cyclin-dependent kinase inhibitor p27(Kip1) by PKB/Akt-mediated phosphorylation in breast cancer.";
Nat. Med. 8:1136-1144(2002).
[11]
PHOSPHORYLATION AT THR-157, INTERACTION WITH AKT1, SUBCELLULAR LOCATION, FUNCTION, AND MUTAGENESIS OF THR-157; SER-161 AND THR-162.
DOI=10.1038/nm759; PubMed=12244301 [NCBI, ExPASy, EBI, Israel, Japan]
Shin I., Yakes F.M., Rojo F., Shin N.-Y., Bakin A.V., Baselga J., Arteaga C.L.;
"PKB/Akt mediates cell-cycle progression by phosphorylation of p27(Kip1) at threonine 157 and modulation of its cellular localization.";
Nat. Med. 8:1145-1152(2002).
[12]
PHOSPHORYLATION AT SER-10 AND THR-198, INTERACTION WITH YWHAE; YWHAH; SFN; YWHAQ; RPS6KA4 AND RPS6KA5, SUBCELLULAR LOCATION, AND MUTAGENESIS OF THR-157 AND THR-198.
DOI=10.1074/jbc.M306614200; PubMed=14504289 [NCBI, ExPASy, EBI, Israel, Japan]
Fujita N., Sato S., Tsuruo T.;
"Phosphorylation of p27Kip1 at threonine 198 by p90 ribosomal protein S6 kinases promotes its binding to 14-3-3 and cytoplasmic localization.";
J. Biol. Chem. 278:49254-49260(2003).
[13]
INTERACTION WITH SPDYA.
DOI=10.1091/mbc.E02-12-0820; PubMed=12972555 [NCBI, ExPASy, EBI, Israel, Japan]
Porter L.A., Kong-Beltran M., Donoghue D.J.;
"Spy1 interacts with p27Kip1 to allow G1/S progression.";
Mol. Biol. Cell 14:3664-3674(2003).
[14]
PHOSPHORYLATION AT THR-198, SUBCELLULAR LOCATION, AND MUTAGENESIS OF SER-10; THR-157; THR-187 AND THR-198.
PubMed=15280662 [NCBI, ExPASy, EBI, Israel, Japan]
Motti M.L., De Marco C., Califano D., Fusco A., Viglietto G.;
"Akt-dependent T198 phosphorylation of cyclin-dependent kinase inhibitor p27kip1 in breast cancer.";
Cell Cycle 3:1074-1080(2004).
[15]
PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-10, AND MASS SPECTROMETRY.
TISSUE=Epithelium;
DOI=10.1073/pnas.0404720101; PubMed=15302935 [NCBI, ExPASy, EBI, Israel, Japan]
Beausoleil S.A., Jedrychowski M., Schwartz D., Elias J.E., Villen J., Li J., Cohn M.A., Cantley L.C., Gygi S.P.;
"Large-scale characterization of HeLa cell nuclear phosphoproteins.";
Proc. Natl. Acad. Sci. U.S.A. 101:12130-12135(2004).
[16]
PHOSPHORYLATION AT TYR-88 AND TYR-89, DEPHOSPHORYLATION, INTERACTION WITH GRB2; CDK2 AND CDK4, SUBCELLULAR LOCATION, AND MUTAGENESIS OF TYR-74; TYR-88 AND TYR-89.
DOI=10.1182/blood-2005-05-1771; PubMed=16195327 [NCBI, ExPASy, EBI, Israel, Japan]
Kardinal C., Dangers M., Kardinal A., Koch A., Brandt D.T., Tamura T., Welte K.;
"Tyrosine phosphorylation modulates binding preference to cyclin-dependent kinases and subcellular localization of p27Kip1 in the acute promyelocytic leukemia cell line NB4.";
Blood 107:1133-1140(2006).
[17]
ASSOCIATION WITH MEN4.
DOI=10.1073/pnas.0603877103; PubMed=17030811 [NCBI, ExPASy, EBI, Israel, Japan]
Pellegata N.S., Quintanilla-Martinez L., Siggelkow H., Samson E., Bink K., Hoefler H., Fend F., Graw J., Atkinson M.J.;
"Germ-line mutations in p27(Kip1) cause a multiple endocrine neoplasia syndrome in rats and humans.";
Proc. Natl. Acad. Sci. U.S.A. 103:15558-15563(2006).
[18]
PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-140, AND MASS SPECTROMETRY.
DOI=10.1126/science.1140321; PubMed=17525332 [NCBI, ExPASy, EBI, Israel, Japan]
Matsuoka S., Ballif B.A., Smogorzewska A., McDonald E.R. III, Hurov K.E., Luo J., Bakalarski C.E., Zhao Z., Solimini N., Lerenthal Y., Shiloh Y., Gygi S.P., Elledge S.J.;
"ATM and ATR substrate analysis reveals extensive protein networks responsive to DNA damage.";
Science 316:1160-1166(2007).
[19]
X-RAY CRYSTALLOGRAPHY (2.3 ANGSTROMS) OF 23-106 OF COMPLEX WITH CDK2 AND CG2A.
DOI=10.1038/382325a0; PubMed=8684460 [NCBI, ExPASy, EBI, Israel, Japan]
Russo A.A., Jeffrey P.D., Patten A.K., Massague J., Pavletich N.P.;
"Crystal structure of the p27Kip1 cyclin-dependent-kinase inhibitor bound to the cyclin A-Cdk2 complex.";
Nature 382:325-331(1996).
[20]
STRUCTURE BY NMR OF 22-104, PHOSPHORYLATION AT TYR-88, FUNCTION, INDUCTION, INTERACTION WITH LYN, MASS SPECTROMETRY, AND MUTAGENESIS OF TYR-88 AND TYR-89.
DOI=10.1016/j.cell.2006.11.047; PubMed=17254966 [NCBI, ExPASy, EBI, Israel, Japan]
Grimmler M., Wang Y., Mund T., Cilensek Z., Keidel E.-M., Waddell M.B., Jaekel H., Kullmann M., Kriwacki R.W., Hengst L.;
"Cdk-inhibitory activity and stability of p27Kip1 are directly regulated by oncogenic tyrosine kinases.";
Cell 128:269-280(2007).
Comments
  • FUNCTION: Important regulator of cell cycle progrssion. Involved in G1 arrest. Potent inhibitor of cyclin E- and cyclin A-CDK2 complexes. Positive regulator of cyclin D-dependent kinases such as CDK4. Regulated by phosphorylation and degradation events.
  • SUBUNIT: Interacts with NUP50; the interaction leads to nuclear import and degradation of phosphorylated p27kip1. Interacts with COPS5, subunit of the COP9 signalosome complex; the interaction leads to p27KIP degradation. Interacts with SPDYA in the SPDYA/CDK2/p27kip1 complex. Interacts (Thr-198 phosphorylated-form) with 14-3-3 proteins, binds strongly YWHAQ, weakly YWHAE and YWHAH, but not YWHAB nor YWHAZ; the interaction with YWHAQ results in translocation to the cytoplasm. Interacts with AKT1, LYN and UHMK1; the interactions lead to cytoplasmic mislocation, phosphorylation of p27kip1 and inhibition of cell cycle arrest. Interacts (unphosphorylated form) with CDK2. Interacts (phosphorylated on Tyr-88 and Tyr-89) with CDK4; the interaction induces nuclear translocation. Interacts with GRB2.
  • INTERACTION:
    P00520:Abl1 (xeno); NbExp=1; IntAct=EBI-519280, EBI-914519;
    P20248:CCNA2; NbExp=4; IntAct=EBI-519280, EBI-457097;
    P14635:CCNB1; NbExp=1; IntAct=EBI-519280, EBI-495332;
    P24385:CCND1; NbExp=2; IntAct=EBI-519280, EBI-375001;
    P24864:CCNE1; NbExp=2; IntAct=EBI-519280, EBI-519526;
    O96020:CCNE2; NbExp=1; IntAct=EBI-519280, EBI-375033;
    P24941:CDK2; NbExp=6; IntAct=EBI-519280, EBI-375096;
    P11802:CDK4; NbExp=2; IntAct=EBI-519280, EBI-295644;
    Q00535:CDK5; NbExp=2; IntAct=EBI-519280, EBI-1041567;
    Q92905:COPS5; NbExp=1; IntAct=EBI-519280, EBI-594661;
    O00505:KPNA3; NbExp=1; IntAct=EBI-519280, EBI-358297;
    O15131:KPNA5; NbExp=3; IntAct=EBI-519280, EBI-540602;
    P07948:LYN; NbExp=2; IntAct=EBI-519280, EBI-79452;
    P12931:SRC; NbExp=1; IntAct=EBI-519280, EBI-621482;
    P16949:STMN1; NbExp=1; IntAct=EBI-519280, EBI-445909;
    P09936:UCHL1; NbExp=1; IntAct=EBI-519280, EBI-714860;
    P07947:YES1; NbExp=1; IntAct=EBI-519280, EBI-515331;
    P31946:YWHAB; NbExp=1; IntAct=EBI-519280, EBI-359815;
    P62258:YWHAE; NbExp=1; IntAct=EBI-519280, EBI-356498;
    P61981:YWHAG; NbExp=1; IntAct=EBI-519280, EBI-359832;
  • SUBCELLULAR LOCATION: Nucleus. Cytoplasm. Note=Nuclear and cytoplasmic in quiescent cells. AKT- or RSK-mediated phosphorylation on Thr-198, binds 14-3-3, translocates to the cytoplasm and promotes cell cycle progression. Mitogen-activated UHMK1 phosphorylation on Ser-10 also results in translocation to the cytoplasm and cell cycle progression. Phosphorylation on Ser-10 facilitates nuclear export. Translocates to the nucleus on phosphorylation of Tyr-88 and Tyr-89.
  • TISSUE SPECIFICITY: Expressed in all tissues tested. Highest levels in skeletal muscle, lowest in liver and kidney.
  • INDUCTION: Maximal levels in quiescence cells and early G(1). Levels decrease after mitogen stimulation as cells progress toward S-phase.
  • DOMAIN: A peptide sequence containing only AA 28-79 retains substantial Kip1 cyclin A/CDK2 inhibitory activity.
  • PTM: Phosphorylated; phosphorylation occurs on serine, threonine and tyrosine residues. Phosphorylation on Ser-10 is the major site of phosphorylation in resting cells, takes place at the G(0)-G(1) phase and leads to protein stability. Phosphorylation on other sites is greatly enhanced by mitogens, growth factors, cMYC and in certain cancer cell lines. The phosphorylated form found in the cytoplasm is inactivate. Phosphorylation on Thr-198 is required for interaction with 14-3-3 proteins. Phosphorylation on Thr-187, by CDK2 leads to protein ubiquitination and proteasomal degradation. Tyrosine phosphorylation promotes this process. Phosphorylation by PKB/AKT1 can be suppressed by LY294002, an inhibitor of the catalytic subunit of PI3K. Phosphorylation on Tyr-88 and Tyr-89 has no effect on binding CDK2, but is required for binding CDK4. Dephosphorylated on tyrosine residues by G-CSF.
  • PTM: Ubiquitinated; in the cytoplasm by the KPC1/KPC2 complex and, in the nucleus, by SCF/SKP2. The latter requires prior phosphorylation on Thr-187.
  • DISEASE: Defects in CDKN1B are the cause of multiple endocrine neoplasia type 4 (MEN4) [MIM:610755]. Multiple endocrine neoplasia (MEN) syndromes are inherited cancer syndromes of the thyroid. MEN4 is a MEN-like syndrome with a phenotypic overlap of both MEN1 and MEN2.
  • MISCELLANEOUS: Decreased levels of p27Kip1, mainly due to proteosomal degradation, are found in various epithelial tumors originating from lung, breast, colon, ovary, esophagus, thyroid and prostate.
  • SIMILARITY: Belongs to the CDI family.
  • WEB RESOURCE: Name=Atlas of Genetics and Cytogenetics in Oncology and Haematology; URL="http://atlasgeneticsoncology.org/Genes/CDKN1BID116.html";.
  • WEB RESOURCE: Name=NIEHS-SNPs; URL="http://egp.gs.washington.edu/data/cdkn1b/";.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
U10906; AAA20240.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
S76988; AAD14244.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
S76986; AAD14244.1; JOINED; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BT019553; AAV38360.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BT019554; AAV38361.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AF480891; AAL78041.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC001971; AAH01971.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
IPI IPI00006991; -.
RefSeq NP_004055.1; -.
UniGene Hs.238990
3D structure databases
PDB
1H27; X-ray; 2.20 A; E=25-35.[ExPASy / RCSB / EBI]
1JSU; X-ray; 2.30 A; C=23-106.[ExPASy / RCSB / EBI]
2AST; X-ray; 2.30 A; D=181-190.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 1H27; -.
1JSU; -.
2AST; -.
DisProt DP00018; -.
ModBase P46527.
Protein-protein interaction databases
IntAct P46527; 35.
PTM databases
PhosphoSite P46527; -.
Enzyme and pathway databases
Pathway_Interaction_DB pi3kciaktpathway; Class I PI3K signaling events mediated by Akt.
hnf3apathway; FOXA1 transcription factor network.
foxopathway; FoxO family signaling.
avb3_integrin_pathway; Integrins in angiogenesis.
telomerasepathway; Regulation of Telomerase.
Reactome REACT_11061; Signalling by NGF.
2D gel databases
SWISS-2DPAGE P46527; -.
Organism-specific databases
GeneCards GC12P012761; -.
H-InvDB HIX0010441; -.
HGNC HGNC:1785; CDKN1B.
GenAtlas CDKN1B.
HPA CAB003691; -.
MIM 600778; gene. [NCBI / EBI]
610755; phenotype. [NCBI / EBI]
PharmGKB PA105; -.
Gene expression databases
ArrayExpress P46527; -.
Bgee P46527; -.
CleanEx HS_CDKN1B; -.
GermOnline ENSG00000111276; Homo sapiens.
Ontologies
GO
GO:0005829; Cellular component: cytosol (inferred from experiment from Reactome).
GO:0005634; Cellular component: nucleus (inferred from direct assay from UniProtKB).
GO:0004861; Molecular function: cyclin-dependent protein kinase inhibitor activity (traceable author statement from ProtInc).
GO:0005515; Molecular function: protein binding (inferred from physical interaction from IntAct).
GO:0005072; Molecular function: transforming growth factor beta receptor, cytoplasmic mediator activity (traceable author statement from ProtInc).
GO:0048102; Biological process: autophagic cell death (inferred from direct assay from UniProtKB).
GO:0007050; Biological process: cell cycle arrest (inferred from mutant phenotype from HGNC).
GO:0000082; Biological process: G1/S transition of mitotic cell cycle (inferred from direct assay from UniProtKB).
GO:0006917; Biological process: induction of apoptosis (inferred from direct assay from UniProtKB).
GO:0030308; Biological process: negative regulation of cell growth (inferred from direct assay from UniProtKB).
GO:0008285; Biological process: negative regulation of cell proliferation (traceable author statement from ProtInc).
GO:0042326; Biological process: negative regulation of phosphorylation (inferred from direct assay from UniProtKB).
GO:0000079; Biological process: regulation of cyclin-dependent protein kinase activity (traceable author statement from ProtInc).
QuickGo view.
Family and domain databases
InterPro IPR003175; CDI.
IPR015456; Cyclin_inhib_p27.
Graphical view of domain structure.
PANTHER PTHR10265; CDI; 1.
PTHR10265:SF4; p27_Kip1; 1.
Pfam PF02234; CDI; 1.
Pfam graphical view of domain structure.
Proteomic databases
PRIDE P46527; -.
Genome annotation databases
Ensembl ENSG00000111276; Homo sapiens. [Contig view]
GeneID 1027; -.
KEGG hsa:1027; -.
Phylogenomic databases
HOGENOM P46527; -.
HOVERGEN P46527; -.
OMA P46527; VNHEELT.
Other
NextBio 4315; -.
PMAP-CutDB P46527; -.
SOURCE CDKN1B; Homo sapiens.
ProtoNet P46527.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
3D-structure; Cell cycle; Cytoplasm; Direct protein sequencing; Nucleus; Phosphoprotein; Polymorphism; Protein kinase inhibitor; Proto-oncogene; Ubl conjugation.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   198  198     Cyclin-dependent kinase inhibitor 1B. PRO_0000190084
MOTIF   153   169  17     Nuclear localization signal (Potential). 
MOD_RES   10    10        Phosphoserine; by UHMK1. 
MOD_RES   74    74        Phosphotyrosine; by SRC. 
MOD_RES   88    88        Phosphotyrosine; by ABL, LYN and SRC. 
MOD_RES   89    89        Phosphotyrosine. 
MOD_RES   140   140        Phosphoserine. 
MOD_RES   157   157        Phosphothreonine; by PKB/AKT1. 
MOD_RES   187   187        Phosphothreonine; by PKB/AKT1 and CDK2. 
MOD_RES   198   198        Phosphothreonine; by PKB/AKT1; RPS6KA4 and RPS6KA5. 
VARIANT   15    15  1     R -> W (in dbSNP:rs2066828 [NCBI]). VAR_011871 
VARIANT   109   109  1     V -> G (in dbSNP:rs2066827 [NCBI]). VAR_011872 
MUTAGEN   10    10        S->A: Loss of phosphorylation by UHMK1. No translocation to the cytoplasm. Greater cell cycle arrest. 
MUTAGEN   10    10        S->D: Exported to the cytoplasm. Inhibits cell cycle arrest. 
MUTAGEN   10    10        S->E: Increased stability in vivo and in vitro. 
MUTAGEN   74    74        Y->F: No change in binding CDK4. Translocates to nucleus. 
MUTAGEN   88    88        Y->F: Abolishes LYN-mediated phosphorylation. Reduced CDK2 phosphorylation on T-187. Greater cell cycle arrest into S-phase. No effect on binding CDK2 complexes. Reduction of CDK4 binding. No nuclear translocation. Completely abolishes CDK4 binding; when associated with F-89. 
MUTAGEN   89    89        Y->F: No effect on binding CDK2 complexes. Reduction of CDK4 binding. No nuclear translocation. Completely abolishes CDK4 binding; when associated with F-88. 
MUTAGEN   157   157        T->A: Greatly reduced PKB/AKT1-mediated phosphorylation. Nuclear location. Inhibits cyclin E/CDK2 cell cycle progression. No effect on binding AKT1. Completely abolishes PKB/AKT1-mediated phosphorylation and no cytoplasmic translocation; when associated with A-198. 
MUTAGEN   161   161        S->A: No change in PKB/AKT1-mediated phosphorylation. 
MUTAGEN   162   162        T->A: No change in PKB/AKT1-mediated phosphorylation. 
MUTAGEN   187   187        T->A,D: No change in PKB/AKT1- nor UHMK1-mediated phosphorylation. 
MUTAGEN   198   198        T->A,D: Abolishes PKB/AKT1-mediated phosphorylation. 46% cytoplasmic location. Greatly reduced binding to YWHAQ. Equally reduced binding; when associated with A-10 and A-187. No nuclear import; when associated with A-157. Completely abolishes PKB/AKT1-mediated phosphorylation and no cytoplasmic translocation; when associated with A-157. 
CONFLICT   22    22        E -> D (in Ref. 2; AAD14244). 
HELIX   38    49  12      
TURN   50    53  4      
HELIX   54    60  7      
TURN   64    67  4      
STRAND   71    74  4      
STRAND   77    80  4      
HELIX   86    89  4      
Sequence information
Length: 198 AA [This is the length of the unprocessed precursor] Molecular weight: 22073 Da [This is the MW of the unprocessed precursor] CRC64: 1118D58901CDF3FC [This is a checksum on the sequence]
        10         20         30         40         50         60 
MSNVRVSNGS PSLERMDARQ AEHPKPSACR NLFGPVDHEE LTRDLEKHCR DMEEASQRKW 

        70         80         90        100        110        120 
NFDFQNHKPL EGKYEWQEVE KGSLPEFYYR PPRPPKGACK VPAQESQDVS GSRPAAPLIG 

       130        140        150        160        170        180 
APANSEDTHL VDPKTDPSDS QTGLAEQCAG IRKRPATDDS STQNKRANRT EENVSDGSPN 

       190 
AGSVEQTPKK PGLRRRQT 

P46527 in FASTA format

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