Anti-PIK3AP1 Antibody Picoband® Fluoro488 Conjugated

Phosphoinositide 3-kinase adapter protein 1 is an enzyme that in humans is encoded by the PIK3AP1 gene. BCAP (B cell adaptor for phosphoinositide 3-kinase (PI3K) ), also known as PI3KAP1, participates in linking the B cell antigen receptor (BCR) with the PI3K pathway. Tyrosine phosphorylation of BCAP by BCR-associated protein tyrosine kinases, such as Syk and Btk, generates binding sites for the p85 subunit of PI3K, resulting in activation of the PI3K pathway. Human and mouse BCAP contain 3 YXXM SH2 binding motifs for interaction with PI3K. BCAP null mice have deficient immune function, with B cells that exhibit enhanced apoptosis.

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E.coli-derived human PIK3AP1 recombinant protein (Position: H78-R583) . Human PIK3AP1 shares 83.8% amino acid (aa) sequence identity with mouse PIK3AP1.

Downstream effector of TOR signaling pathway involved in osmotic stress response. Could be involved in the control of plant growth and development. Phosphorylates the ribosomal proteins P14, P16 and S6. Functions as a repressor of cell proliferation and required for maintenance of chromosome stability and ploidy levels through the RBR1-E2F pathway.

1. Okada, T., Maeda, A., Iwamatsu, A., Gotoh, K., Kurosaki, T. BCAP: the tyrosine kinase substrate that connects B cell receptor to phosphoinositide 3-kinase activation. Immunity 13: 817-827, 2000. 2. Yamazaki, T., Kurosaki, T. Contribution of BCAP to maintenance of mature B cells through c-Rel. Nature Immun. 4: 780-786, 2003. 3. Yamazaki, T., Takeda, K., Gotoh, K., Takeshima, H., Akira, S., Kurosaki, T. Essential immunoregulatory role for BCAP in B cell development and function. J. Exp. Med. 195: 535-545, 2002.