p(HBP:"Tau antibody, AGG5759") increases p(HGNC:MAPT, pmod(Ph, Ser, 262))

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PubMed:23666762

In parallel, phosphorylation of tau at Ser262 in MARK-transfected cells was investigated using a rabbit antibody recognizing phosphorylated Ser262 of tau (AGG5759) and a mouse anti-tau antibody (SC-21796) (Fig. S1a3). Tau was shown to interact with each of the transfected MARK isoforms (Fig. 1) and to be phosphorylated at Ser262 (Fig. 2). Staurosporine, a non-selective kinase inhibitor, significantly inhibited interactions between tau and each of the four MARK isoforms after treatment with 20 lM staurosporine for 1 h (Fig. 1; p = 0.02 for MARK1–, MARK2– and MARK3–tau interactions and p = 3 9 10-6 for MARK4–tau interaction). Treatment with staurosporine also significantly reduced PLA signals for tau phosphorylation at Ser262 (Fig. 2; p = 0.04 for MARK1- and p = 0.02 for MARK2- and MARK3- and p = 1 9 10-5 for MARK4-mediated tau phosphorylation)

Related Edges 2

• a(CHEBI:staurosporine) decreases act(p(INTERPRO:"Kinase associated domain 1 (KA1)"), ma(kin))
• p(HBP:"Tau antibody, Tau-13") increases p(HGNC:MAPT, pmod(Ph, Ser, 262))

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