>cd05070 PTKc_Fyn_Yrk Catalytic Domain of the Protein Tyrosine Kinases, Fyn and Yrk. Protein Tyrosine Kinase (PTK) family; Fyn and Yrk kinases; 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. Fyn and Yrk 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 are involved in signaling pathways that r

Probab=96.98 E-value=0.033 Score=33.91 Aligned_cols=142 Identities=13% Similarity=0.178 Sum_probs=79.6 Q ss_pred CEEEEEECCCCCEEEEEEEEECC-CCEEEEEECCC-CCHHHHHHHHHHHHHHHHCCCCCCCCCCCCHHHHHHHHCCCCEE Q ss_conf 60531004668120017999439-95899982166-99889999999999985326775551001026778752245155 Q gi|254780795|r 23 QLNSVQPIIHGVENSNFVIQTSK-GTFILTIYEKR-MNEKDLPVFIELLHYISRNKLPCPIPIPRNDGKLYGFLCKKPAN 100 (316) Q Consensus 23 ~~~~~~~i~~G~~Ntny~v~t~~-~~yiLri~e~~-~~~~~l~~~~~ll~~L~~~gipvP~pi~~~~G~~~~~~~~k~~~ 100 (316) T Consensus 7 ~~~~~~~IG~G~fG~Vy~g~~~~~~~VAiK~l~~~~~~~~~f~~E~~il~~l~H~nI-----v~~~-g~---~~~~~~~l 77 (260) T cd05070 7 SLQLIKKLGNGQFGEVWMGTWNGNTKVAVKTLKPGTMSPESFLEEAQIMKKLRHDKL-----VQLY-AV---VSEEPIYI 77 (260) T ss_pred HEEEEEEEECCCCCEEEEEEECCCCEEEEEEECCCCCCHHHHHHHHHHHHHCCCCCC-----CEEE-EE---EECCCEEE T ss_conf 989747982188858999999999999999988367997999999999986899898-----9499-99---93697599 Q ss_pred EEECCCCCCCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHH Q ss_conf 78647887076899899999999864367530687543323112456457667520015522788999999988876521 Q gi|254780795|r 101 IFSFIKGSPLNHISDIHCEEIGSMLASMHQKTKNFHLYRKNTLSPLNLKFLWAKCFDKVDEDLKKEIDHEFCFLKESWPK 180 (316) Q Consensus 101 L~~~i~G~~~~~~~~~~~~~lG~~La~lH~~~~~f~~~r~~~~~~~~~~~~~~~~~~~~~~~~~~~l~~~l~~~~~~~~~ 180 (316) T Consensus 78 v~Ey~~~G~L~~--------------~l~~-~~~~~------~~---~~~~---------~~i~~qia~gL~yLH~---- 120 (260) T cd05070 78 VTEYMSKGSLLD--------------FLKD-GEGRA------LK---LPNL---------VDMAAQVAAGMAYIER---- 120 (260) T ss_pred EEECCCCCCHHH--------------HHHH-CCCCC------CC---HHHH---------HHHHHHHHHHHHHHHH---- T ss_conf 998179998999--------------9862-88887------99---9999---------9999999999999855---- Q ss_pred CCCCCEEECCCCCCCEEECCCCCEEEECCCCCC Q ss_conf 077744402234642256279604873162135 Q gi|254780795|r 181 NLPTGIIHADLFPDNVLFYNNKIMGLIDFYFSC 213 (316) Q Consensus 181 ~Lp~g~IHgDl~~~NiL~~~~~i~giIDF~~~~ 213 (316) T Consensus 121 ---~~iiHrDlKp~NiLl~~~~~~KL~DFGla~ 150 (260) T cd05070 121 ---MNYIHRDLRSANILVGDGLVCKIADFGLAR 150 (260) T ss_pred ---CCCCCCCCCCCEEEECCCCCEEEEECCCCE T ss_conf ---892345046172888789978985658671

HHsearch alignment for GI: 254780795 and conserved domain: cd05070