|Immunohistochemistry (Paraffin) (IHC (P))||1:50|
|Tested Species reactivity||Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Synthetic peptide derived from the region of human p70S6K that contains non-phosphorylated threonine 421 and serine 424.|
|Purification||Antigen affinity chromatography|
|Storage buffer||PBS, pH 7.6, with 1% BSA|
|Contains||<0.1% sodium azide|
|Storage conditions||4° C, do not freeze|
Heat-mediated antigen retrieval is recommended prior to staining, using a 10mM citrate buffer, pH 6.0, for 10 minutes followed by cooling at room temperature for 20 min. Following antigen retrieval, incubate samples with primary antibody for 30 min at room temperature. A suggested positive control is breast carcinoma.
Ribosomal S6 kinase has two isoforms, termed S6K1 (S6Ka) and S6K2 (S6Kb). The S6K1 isoform has two splicing forms, which are the products of alternative start codon usage. The first splicing form, p70S6K or p70S6K1, has a predicted molecular mass of 56 kDa and an apparent molecular mass (SDS-PAGE) of 70 kDa. The second isoform, p85S6K or p85S6K1, contains 23 extra amino acid residues at the N terminus, resulting from the alternative start codon. It has a predicted molecular mass of 59 kDa and an apparent molecular mass of 85 kDa. Both, p70 and p85 S6K1 are activated by multiple S/T phosphorylations in response to various mitogenic stimuli and nutrients. This is accompanied by significant mobility shift in the migration of both forms, when analyzed by SDS-PAGE electrophoresis. Ser411, Thr421 and Ser424 lie within a Ser-Pro-rich region located in the pseudosubstrate region. Phosphorylation at these sites is thought to activate p70 S6 kinase via relief of pseudosubstrate suppression. This antibody detects p70S6K that is non-phosphorylated at T421/S424.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 70 kDa ribosomal protein S6 kinase 1; alpha 1; alpha 2; p70 ribosomal S6 kinase alpha; p70 S6 kinase; p70 S6 kinase alpha; p70 S6 kinase, alpha; p70 S6K-alpha; p70 S6KA; p70-alpha; p70-S6K; p70S6K-alpha; P70S6K1; PS6K; Ribosomal protein S6 kinase beta-1; Ribosomal protein S6 kinase I; ribosomal protein S6 kinase, 70kDa, polypeptide 1; S6K-beta-1; S6K1; serine/threonine kinase 14 alpha; serine/threonine-protein kinase; Serine/threonine-protein kinase 14A; STK14A
Gene Aliases: p70 S6KA; p70(S6K)-alpha; p70-alpha; p70-S6K; PS6K; RPS6KB1; S6K; S6K-beta-1; S6K1; STK14A
UniProt ID: (Human) P23443
Entrez Gene ID: (Human) 6198
Molecular Function: annexin calcium-binding protein calmodulin intracellular calcium-sensing protein kinase non-receptor serine/threonine protein kinase protein kinase transfer/carrier protein transferase
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