p27Kip1 (S140) Blocking Peptide | CDKN1B blocking peptide

Phospho-p27Kip1(S140) Blocking Peptide

• Gene Names: CDKN1B; KIP1; MEN4; CDKN4; MEN1B; P27KIP1
• Synonyms: p27Kip1 (S140); Phospho-p27Kip1(S140) Blocking Peptide; Cyclin-dependent kinase inhibitor 1B; Cyclin-dependent kinase inhibitor p27; p27Kip1; CDKN1B; KIP1; CDKN1B blocking peptide

• Specificity: The synthetic peptide sequence is selected from aa 133-147 of HUMAN CDKN1B
• Form/Format: Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.
• Sequence Length: 198

• Cellular Location: Nucleus. Cytoplasm. Endosome. 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 Colocalizes at the endosome with SNX6; this leads to lysosomal degradation (By similarity).
• Tissue Location: Expressed in all tissues tested. Highest levels in skeletal muscle, lowest in liver and kidney
• Preparation and Storage: Maintain refrigerated at 2-8 degree C for up to 6 months. For long term storage store at -20 degree C.

Related Product Information for CDKN1B blocking peptide

Important regulator of cell cycle progression. Involved in G1 arrest. Potent inhibitor of cyclin E- and cyclin A-CDK2 complexes. Forms a complex with cyclin type D-CDK4 complexes and is involved in the assembly, stability, and modulation of CCND1- CDK4 complex activation. Acts either as an inhibitor or an activator of cyclin type D-CDK4 complexes depending on its phosphorylation state and/or stoichometry.

NCBI and Uniprot Product Information

• NCBI GI #: 4757962
• NCBI GeneID: 1027
• NCBI Accession #: NP_004055.1
• NCBI GenBank Nucleotide #: NM_004064.4
• UniProt Accession #: P46527; Q16307; Q5U0H2; Q9BUS6
• Molecular Weight: 22,073 Da
• NCBI Official Full Name: cyclin-dependent kinase inhibitor 1B
• NCBI Official Synonym Full Names: cyclin dependent kinase inhibitor 1B
• NCBI Official Symbol: CDKN1B
• NCBI Official Synonym Symbols: KIP1; MEN4; CDKN4; MEN1B; P27KIP1
• NCBI Protein Information: cyclin-dependent kinase inhibitor 1B
• UniProt Protein Name: Cyclin-dependent kinase inhibitor 1B
• Protein Family: Cyclin-dependent kinase inhibitor
• UniProt Gene Name: CDKN1B
• UniProt Synonym Gene Names: KIP1
• UniProt Entry Name: CDN1B_HUMAN

NCBI Description

This gene encodes a cyclin-dependent kinase inhibitor, which shares a limited similarity with CDK inhibitor CDKN1A/p21. The encoded protein binds to and prevents the activation of cyclin E-CDK2 or cyclin D-CDK4 complexes, and thus controls the cell cycle progression at G1. The degradation of this protein, which is triggered by its CDK dependent phosphorylation and subsequent ubiquitination by SCF complexes, is required for the cellular transition from quiescence to the proliferative state. Mutations in this gene are associated with multiple endocrine neoplasia type IV (MEN4). [provided by RefSeq, Apr 2014]

Uniprot Description

p27Kip1: a cell-cycle regulatory protein that Interacts with cyclin-CDK2 and -CDK4, inhibiting cell cycle progression at G1. May mediate TGF beta-induced g1 arrest. Its degradation is triggered by its CDK dependent phosphorylation and subsequent ubiquitination by SCF complexes, is required for the cellular transition from quiescence to the proliferative state.

Protein type: Cell cycle regulation; Oncoprotein; Inhibitor; Protein kinase, regulatory subunit

Chromosomal Location of Human Ortholog: 12p13.1-p12

Cellular Component: cytoplasm; cytosol; nucleoplasm; nucleus

Molecular Function: caspase activator activity; cyclin-dependent protein kinase inhibitor activity; protein binding; protein phosphatase binding; transforming growth factor beta receptor, cytoplasmic mediator activity

Biological Process: autophagic cell death; caspase activation; cell cycle arrest; DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; G1/S transition of mitotic cell cycle; negative regulation of cell growth; negative regulation of cell proliferation; negative regulation of kinase activity; negative regulation of mitotic cell cycle; negative regulation of phosphorylation; negative regulation of transcription, DNA-dependent; positive regulation of cell cycle; positive regulation of protein catabolic process; regulation of cyclin-dependent protein kinase activity

Disease: Multiple Endocrine Neoplasia, Type Iv