FEATURES

FAMILY

DESCRIPTION

Also known as TESK1_HUMAN, TESK1. Dual specificity protein kinase activity catalyzing autophosphorylation and phosphorylation of exogenous substrates on both serine/threonine and tyrosine residues (By similarity). Regulates the cellular cytoskeleton by enhancing actin stress fiber formation via phosphorylation of cofilin and by preventing microtubule breakdown via inhibition of TAOK1/MARKK kinase activity (By similarity). Inhibits podocyte motility via regulation of actin cytoskeletal dynamics and phosphorylation of CFL1 (By similarity). Positively regulates integrin-mediated cell spreading, via phosphorylation of cofilin (PubMed:15584898). Suppresses ciliogenesis via multiple pathways; phosphorylation of CFL1, suppression of ciliary vesicle directional trafficking to the ciliary base, and by facilitating YAP1 nuclear localization where it acts as a transcriptional corepressor of the TEAD4 target genes AURKA and PLK1 (PubMed:25849865). Probably plays a central role at and after the meiotic phase of spermatogenesis (By similarity). Interacts (via both C- and N-termini) with SPRY4 (via C-terminus); the interaction inhibits TESK1 kinase activity (PubMed:12027893, PubMed:15584898). Interacts with TAOK1; the interaction inhibits TAOK1 kinase activity (By similarity). Interacts (via C-terminus) with SPRED1 (via C-terminus); the interaction inhibits TESK1 kinase activity (PubMed:18216281). Interacts (via C-terminus) with PARVA/PARVIN (via C-terminus); the interaction inhibits TESK1 kinase activity (PubMed:15817463). Interacts with YWHAB/14-3-3 beta; the interaction is dependent on the phosphorylation of TESK1 Ser-437 and inhibits TESK1 kinase activity (PubMed:11555644). Interacts with SPRY1, SPRY3 and SPRED2 (PubMed:17974561). Interacts (via C-terminus) with SPRY2 (via C-terminus); the interaction disrupts SPRY2 interaction with PPP2CA/PP2A-C, possibly by vesicular sequestration of SPRY2 (PubMed:17974561). Therefore dephosphorylation of SPRY2 by the serine/threonine-protein phosphatase 2A (PP2A) holoenzyme is lost, inhibiting its interaction with GRB2 (PubMed:17974561).

EXTERNAL LINKS

TESK1

Dual specificity testis-specific protein kinase 1

TESK1

Molecular Synopsis