RPS6KB1 (S418) Blocking Peptide | RPS6KB1 blocking peptide

Phospho-RPS6KB1(S418) Blocking Peptide

• Gene Names: RPS6KB1; S6K; PS6K; S6K1; STK14A; p70-S6K; p70 S6KA; p70-alpha; S6K-beta-1; p70(S6K)-alpha
• Synonyms: RPS6KB1 (S418); Phospho-RPS6KB1(S418) Blocking Peptide; Ribosomal protein S6 kinase beta-1; S6K-beta-1; S6K1; 70 kDa ribosomal protein S6 kinase 1; P70S6K1; p70-S6K 1; Ribosomal protein S6 kinase I; Serine/threonine-protein kinase 14A; p70 ribosomal S6 kinase alpha; p70 S6 kinase alpha; p70 S6K-alpha; p70 S6KA; RPS6KB1; STK14A; RPS6KB1 blocking peptide

• Specificity: The synthetic peptide sequence is selected from aa 434-448 of HUMAN RPS6KB1
• 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: 525

• Cellular Location: Cell junction, synapse, synaptosome. Mitochondrion outer membrane. Mitochondrion Note: Colocalizes with URI1 at mitochondrion Isoform Alpha II: Cytoplasm.
• Tissue Location: Widely expressed.
• 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 RPS6KB1 blocking peptide

Serine/threonine-protein kinase that acts downstream of mTOR signaling in response to growth factors and nutrients to promote cell proliferation, cell growth and cell cycle progression. Regulates protein synthesis through phosphorylation of EIF4B, RPS6 and EEF2K, and contributes to cell survival by repressing the pro-apoptotic function of BAD. Under conditions of nutrient depletion, the inactive form associates with the EIF3 translation initiation complex. Upon mitogenic stimulation, phosphorylation by the mammalian target of rapamycin complex 1 (mTORC1) leads to dissociation from the EIF3 complex and activation. The active form then phosphorylates and activates several substrates in the pre-initiation complex, including the EIF2B complex and the cap-binding complex component EIF4B. Also controls translation initiation by phosphorylating a negative regulator of EIF4A, PDCD4, targeting it for ubiquitination and subsequent proteolysis. Promotes initiation of the pioneer round of protein synthesis by phosphorylating POLDIP3/SKAR. In response to IGF1, activates translation elongation by phosphorylating EEF2 kinase (EEF2K), which leads to its inhibition and thus activation of EEF2. Also plays a role in feedback regulation of mTORC2 by mTORC1 by phosphorylating RICTOR, resulting in the inhibition of mTORC2 and AKT1 signaling. Mediates cell survival by phosphorylating the pro-apoptotic protein BAD and suppressing its pro-apoptotic function. Phosphorylates mitochondrial URI1 leading to dissociation of a URI1-PPP1CC complex. The free mitochondrial PPP1CC can then dephosphorylate RPS6KB1 at Thr-412, which is proposed to be a negative feedback mechanism for the RPS6KB1 anti- apoptotic function. Mediates TNF-alpha-induced insulin resistance by phosphorylating IRS1 at multiple serine residues, resulting in accelerated degradation of IRS1. In cells lacking functional TSC1- 2 complex, constitutively phosphorylates and inhibits GSK3B. May be involved in cytoskeletal rearrangement through binding to neurabin. Phosphorylates and activates the pyrimidine biosynthesis enzyme CAD, downstream of MTOR.

NCBI and Uniprot Product Information

• NCBI GI #: 54041234
• NCBI GeneID: 6198
• UniProt Accession #: P23443; Q7Z721; B2R779; B4DLT4; B4DTG1; E7ESB8; F6UYM1
• Molecular Weight: 51,016 Da
• NCBI Official Full Name: Ribosomal protein S6 kinase beta-1
• NCBI Official Synonym Full Names: ribosomal protein S6 kinase B1
• NCBI Official Symbol: RPS6KB1
• NCBI Official Synonym Symbols: S6K; PS6K; S6K1; STK14A; p70-S6K; p70 S6KA; p70-alpha; S6K-beta-1; p70(S6K)-alpha
• NCBI Protein Information: ribosomal protein S6 kinase beta-1
• UniProt Protein Name: Ribosomal protein S6 kinase beta-1
• Protein Family: Ribosomal protein S6 kinase
• UniProt Gene Name: RPS6KB1
• UniProt Synonym Gene Names: STK14A; S6K-beta-1; S6K1; P70S6K1; p70-S6K 1; p70 S6 kinase alpha; p70 S6K-alpha; p70 S6KA
• UniProt Entry Name: KS6B1_HUMAN

NCBI Description

This gene encodes a member of the ribosomal S6 kinase family of serine/threonine kinases. The encoded protein responds to mTOR (mammalian target of rapamycin) signaling to promote protein synthesis, cell growth, and cell proliferation. Activity of this gene has been associated with human cancer. Alternatively spliced transcript variants have been observed. The use of alternative translation start sites results in isoforms with longer or shorter N-termini which may differ in their subcellular localizations. There are two pseudogenes for this gene on chromosome 17. [provided by RefSeq, Jan 2013]

Uniprot Description

p70S6K: an AGC kinase of the RSK family that is required for cell growth and G1 cell cycle progression. Is phosphorylated and activated by mTOR in mitogenic pathways downstream of phosphoinositide 3 kinase (PI3K). Phosphorylates the S6 protein of the 40S ribosomal subunit and is involved in translational control of 5' oligopyrimidine tract mRNAs. Activity is controlled by multiple phosphorylation events located within the catalytic, linker and pseudosubstrate domains. Mouse knockout shows symptoms of insulin resistance, and increased insulin senstivity, resulting in protection against diet-induced obesity. Protein expression and activation upregulated in colon adenocarcinoma cell lines. Increased expression in breast cancer correlated with poor survival. Selectively amplified and overexpressed within the 17q23 breast cancer amplicon. Two isoforms produced by alternative initiation have been reported.

Protein type: Kinase, protein; EC 2.7.11.1; Protein kinase, Ser/Thr (non-receptor); Protein kinase, AGC; Translation; AGC group; RSK family; p70 subfamily

Chromosomal Location of Human Ortholog: 17q23.1

Cellular Component: cytosol; mitochondrion; nucleoplasm

Molecular Function: kinase activity; protein binding; protein kinase activity; protein serine/threonine/tyrosine kinase activity; ribosomal protein S6 kinase activity

Biological Process: G1/S transition of mitotic cell cycle; negative regulation of apoptosis; negative regulation of insulin receptor signaling pathway; phosphoinositide-mediated signaling; positive regulation of mitotic cell cycle; positive regulation of translation; positive regulation of translational initiation; signal transduction; TOR signaling pathway