>cd05039 PTKc_Csk_like Catalytic Domain of C-terminal Src kinase-like Protein Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family; C-terminal Src kinase (Csk) subfamily; catalytic (c) domain. The Csk subfamily is composed of Csk, Chk, and similar proteins. 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. Csk subfamily kinases are cytoplasmic (or nonreceptor) tyr kinases containing the Src homology domains, SH3 and SH2, N-terminal to the catalytic tyr kinase domain. They negatively regulate the activity of Src kinases that are anchored to the plasma membrane. To inhibit Src kinases, Csk and Chk are translocated to the membrane via binding to specific transmembrane proteins, G-proteins, or adaptor proteins near the membrane. Csk

Probab=98.70 E-value=5.4e-08 Score=81.11 Aligned_cols=137 Identities=15% Similarity=0.167 Sum_probs=89.8 Q ss_pred HHHHHHHHHHHHHHHHHEECCCCCCEEEEEEECCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHH Q ss_conf 67666778888655550212888723687640310468877778899987532114685433469179999999887888 Q gi|254780623|r 123 FDDPIAAASIAQVHPAVVHDINGYRKVAVKIIRPGVRKRFFRDIQVMYLIARIQEKLLPSMRRLCFSAVVRALEQVTKME 202 (517) Q Consensus 123 fdePlasASiaQVh~A~l~d~~~g~~VaVKV~rP~i~~~i~~Dl~~l~~~~~~~~~~~~~~~~~~~~~~~~e~~~~l~~E 202 (517) T Consensus 10 ~~~~iG~G~fg~Vy~g~~~----g~~VAiK~~~~~~-------------------------------~~~~--------- 45 (256) T cd05039 10 LGATIGKGEFGDVMLGDYR----GQKVAVKCLKDDS-------------------------------TAAQ--------- 45 (256) T ss_pred EEEEEEECCCEEEEEEEEC----CCEEEEEEECCCC-------------------------------CHHH--------- T ss_conf 8339920898089999999----9199999988886-------------------------------5699--------- Q ss_pred HHHHHHHHHHHHHHCCCCCCCCCCCHHCCCHHC--CCCEEEEECCCCCCCCHHHHHH-HHCCC---HHHHHHHHHHHHHH Q ss_conf 655999988987202446776643000010221--7833530024786324267733-20022---56899999999999 Q gi|254780623|r 203 MDLRLEAAAFSEMAENTVKDQGFRVPKIDWNRT--ERDVITMEWIDGVKISDTEKLR-ACGHD---LERLSVTLVQSFLL 276 (517) Q Consensus 203 lD~~~Ea~n~~~~~~~~~~~~~v~vP~vy~~~s--t~~VLvmE~i~G~~i~d~~~l~-~~~~d---~~~la~~l~~~~~~ 276 (517) T Consensus 46 -~f~~E~~~l~~l~H-----pNI--v~~~g~~~~~~~~~iV~Ey~~~gsL~~~l~~~~~~~l~~~~~~~i~~~ia~g-l~ 116 (256) T cd05039 46 -AFLAEASVMTTLRH-----PNL--VQLLGVVLQGNPLYIVTEYMAKGSLVDYLRSRGRAVITLAQQLGFALDVCEG-ME 116 (256) T ss_pred -HHHHHHHHHHHCCC-----CCE--EEEEEEEEECCEEEEEEECCCCCCHHHHHHHCCCCCCCHHHHHHHHHHHHHH-HH T ss_conf -99999999985899-----888--2088899889999999975899978999975489899999999999999999-99 Q ss_pred HHHHCCEECCCCCCCEEEEECCCCEEEEECCHHEEC Q ss_conf 897448661787862289802895357434031216 Q gi|254780623|r 277 HTLRDGFFHADLHPGNLFVDSKGYIVAVDMGITGRL 312 (517) Q Consensus 277 qi~~~GfFHaDPHpGNi~v~~dg~i~~lDfG~vg~l 312 (517) T Consensus 117 yLH~~~iiHrDlK~~NiLl~~~~~~Kl~DFGls~~~ 152 (256) T cd05039 117 YLEEKNFVHRDLAARNVLVSEDLVAKVSDFGLAKEA 152 (256) T ss_pred HHHHCCCEECCCCCCEEEECCCCCEEEEECCCCEEC T ss_conf 997589332546751388899994899305467006

HHsearch alignment for GI: 254780623 and conserved domain: cd05039