PPP2R4 Antibody

PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Acts as a regulatory subunit for serine/threonine- protein phosphatase 2A (PP2A) modulating its activity or substrate specificity, probably by inducing a conformational change in the catalytic subunit, a proposed direct target of the PPIase. Can reactivate inactive phosphatase PP2A-phosphatase methylesterase complexes (PP2A (i) ) in presence of ATP and Mg (2+) (By similarity) . Reversibly stimulates the variable phosphotyrosyl phosphatase activity of PP2A core heterodimer PP2A (D) in presence of ATP and Mg (2+) (in vitro) . The phosphotyrosyl phosphatase activity is dependent of an ATPase activity of the PP2A (D) :PPP2R4 complex. Is involved in apoptosis; the function appears to be independent from PP2A.

Store at 4˚ C for three months and -20˚ C, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.

Serine/threonine-protein phosphatase 2A activator, 5.2.1.8, PP2A, subunit B', PR53 isoform, Phosphotyrosyl phosphatase activator, PTPA, Serine/threonine-protein phosphatase 2A regulatory subunit 4, Serine/threonine-protein phosphatase 2A regulatory subunit B', PPP2R4, PTPA