>cd05068 PTKc_Frk_like Catalytic Domain of Fyn-related kinase-like Protein Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family; Human Fyn-related kinase (Frk) and similar proteins; catalytic (c) domain. The PTKc family is part of a larger superfamily that includes the catalytic domains of other kinases such as protein serine/threonine kinases, RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs catalyze the transfer of the gamma-phosphoryl group from ATP to tyrosine (tyr) residues in protein substrates. Frk and Srk are members of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) tyr kinases. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). Src proteins a

Probab=97.26 E-value=0.011 Score=37.06 Aligned_cols=141 Identities=18% Similarity=0.188 Sum_probs=76.9 Q ss_pred EEEEECCCCCEEEEEEEEECCC-CEEEEEECCC-CCHHHHHHHHHHHHHHHHCCCCCCCCCCCCHHHHHHHHCCCCEEEE Q ss_conf 5310046681200179994399-5899982166-9988999999999998532677555100102677875224515578 Q gi|254780795|r 25 NSVQPIIHGVENSNFVIQTSKG-TFILTIYEKR-MNEKDLPVFIELLHYISRNKLPCPIPIPRNDGKLYGFLCKKPANIF 102 (316) Q Consensus 25 ~~~~~i~~G~~Ntny~v~t~~~-~yiLri~e~~-~~~~~l~~~~~ll~~L~~~gipvP~pi~~~~G~~~~~~~~k~~~L~ 102 (316) T Consensus 9 ~~~~~iG~G~fg~Vy~~~~~~~~~VAvK~~~~~~~~~~~~~~E~~~l~~l~H-----pnIv~~~-g--~~~~~~~~~iv~ 80 (261) T cd05068 9 QLLRKLGAGQFGEVWEGLWNNTTPVAVKTLKPGTMDPKDFLAEAQIMKKLRH-----PKLIQLY-A--VCTLEEPIYIVT 80 (261) T ss_pred EEEEEEECCCCEEEEEEEECCCCEEEEEEECCCCCCHHHHHHHHHHHHHCCC-----CCCCEEE-E--EEEECCEEEEEE T ss_conf 9867983187809999998999899999984788999999999999986899-----6899099-9--999899899999 Q ss_pred ECCCCCCCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHCC Q ss_conf 64788707689989999999986436753068754332311245645766752001552278899999998887652107 Q gi|254780795|r 103 SFIKGSPLNHISDIHCEEIGSMLASMHQKTKNFHLYRKNTLSPLNLKFLWAKCFDKVDEDLKKEIDHEFCFLKESWPKNL 182 (316) Q Consensus 103 ~~i~G~~~~~~~~~~~~~lG~~La~lH~~~~~f~~~r~~~~~~~~~~~~~~~~~~~~~~~~~~~l~~~l~~~~~~~~~~L 182 (316) T Consensus 81 E~~~~G~L~~-----~---------l~~~--~-----~~~l~---~~~~---------~~i~~qia~gl~yLH~------ 121 (261) T cd05068 81 ELMKYGSLLE-----Y---------LQGG--A-----GRALK---LPQL---------IDMAAQVASGMAYLEA------ 121 (261) T ss_pred ECCCCCCHHH-----H---------HHHC--C-----CCCCC---HHHH---------HHHHHHHHHHHHHHHH------ T ss_conf 9069998999-----9---------9637--8-----88899---9999---------9999999999999986------ Q ss_pred CCCEEECCCCCCCEEECCCCCEEEECCCCCC Q ss_conf 7744402234642256279604873162135 Q gi|254780795|r 183 PTGIIHADLFPDNVLFYNNKIMGLIDFYFSC 213 (316) Q Consensus 183 p~g~IHgDl~~~NiL~~~~~i~giIDF~~~~ 213 (316) T Consensus 122 -~~iiHrDLKp~NILl~~~~~vKl~DFGls~ 151 (261) T cd05068 122 -QNYIHRDLAARNVLVGENNICKVADFGLAR 151 (261) T ss_pred -CCEECCCCCCCEEEECCCCCEEEEECCCCE T ss_conf -797206566155898899968998343212

HHsearch alignment for GI: 254780795 and conserved domain: cd05068