Akt1 S1, Polyclonal Antibody

Akt1 substrate 1 (proline-rich); AKTS1; Lobe; MGC2865; PRAS40; proline-rich Akt substrate 40 kDa

For Research Use Only. Not for use in diagnostic procedures.

Polyclonal

Rabbit

Akt1 S1 Antibody detects endogenous levels of total Akt1 S1 protein.

Purified from rabbit antiserum by affinity-chromatography using immunogen.

Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.

1 mg/ml (lot specific)

Stable at -20 degree C for at least 1 year.

Small volumes of anti-AKT1S1 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Western Blot (WB), Immunohistochemistry (IHC), ELISA (EIA)

WB: 1:500~1:1000
IHC: 1:50~1:100
ELISA: 1:1000

Immunohistochemistry analysis of paraffin-embedded human brain tissue, using Akt1 S1 Antibody. The picture on the right is blocked with the synthesized peptide.

Western blot analysis of lysates from 293 cells, using Akt1 S1 Antibody. The lane on the right is blocked with the synthesized peptide.

27 kDa

AKT1 substrate 1

proline-rich AKT1 substrate 1

Proline-rich AKT1 substrate 1

AKT1S1 is a proline-rich substrate of AKT (MIM 164730) that binds 14-3-3 protein (see YWHAH, MIM 113508) when phosphorylated (Kovacina et al., 2003 [PubMed 12524439]).[supplied by OMIM, Mar 2008]

Subunit of mTORC1, which regulates cell growth and survival in response to nutrient and hormonal signals. mTORC1 is activated in response to growth factors or amino acids. Growth factor-stimulated mTORC1 activation involves a AKT1-mediated phosphorylation of TSC1-TSC2, which leads to the activation of the RHEB GTPase that potently activates the protein kinase activity of mTORC1. Amino acid-signaling to mTORC1 requires its relocalization to the lysosomes mediated by the Ragulator complex and the Rag GTPases. Activated mTORC1 up-regulates protein synthesis by phosphorylating key regulators of mRNA translation and ribosome synthesis. mTORC1 phosphorylates EIF4EBP1 and releases it from inhibiting the elongation initiation factor 4E (eiF4E). mTORC1 phosphorylates and activates S6K1 at 'Thr-389', which then promotes protein synthesis by phosphorylating PDCD4 and targeting it for degradation. Within mTORC1, AKT1S1 negatively regulates mTOR activity in a manner that is dependent on its phosphorylation state and binding to 14-3-3 proteins. Inhibits RHEB-GTP-dependent mTORC1 activation. Substrate for AKT1 phosphorylation, but can also be activated by AKT1-independent mechanisms. May also play a role in nerve growth factor-mediated neuroprotection.

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