>cd05113 PTKc_Btk_Bmx Catalytic Domain of the Protein Tyrosine Kinases, Bruton's tyrosine kinase and Bone marrow kinase on the X chromosome. Protein Tyrosine Kinase (PTK) family; Bruton's tyrosine kinase (Btk) and Bone marrow kinase on the X chromosome (Bmx); 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. Btk and Bmx (also named Etk) are members of the Tec subfamily of proteins, which are cytoplasmic (or nonreceptor) tyr kinases with similarity to Src kinases in that they contain Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. Unlike Src kinases, most Tec subfamily members (except Rlk) also contain an N-terminal pleckstrin homology (PH) domain, which binds

Probab=98.89 E-value=1.3e-08 Score=85.82 Aligned_cols=142 Identities=15% Similarity=0.183 Sum_probs=91.7 Q ss_pred HHHH--HHHHHHHHHHHHHHHEECCCCCCEEEEEEECCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHH Q ss_conf 9867--66677888865555021288872368764031046887777889998753211468543346917999999988 Q gi|254780623|r 121 CEFD--DPIAAASIAQVHPAVVHDINGYRKVAVKIIRPGVRKRFFRDIQVMYLIARIQEKLLPSMRRLCFSAVVRALEQV 198 (517) Q Consensus 121 ~~fd--ePlasASiaQVh~A~l~d~~~g~~VaVKV~rP~i~~~i~~Dl~~l~~~~~~~~~~~~~~~~~~~~~~~~e~~~~ 198 (517) T Consensus 4 ~d~~~~~~iG~G~fg~Vy~~~~~~---~~~vAvK~~~~~~~---------------------------~----------- 42 (256) T cd05113 4 RDLTFLKELGTGQFGVVKYGKWQG---QYDVAIKMIKEGSM---------------------------S----------- 42 (256) T ss_pred HHCEEEEEEECCCCEEEEEEEECC---CCEEEEEEECCCCC---------------------------C----------- T ss_conf 994980697028781999999879---97999999835889---------------------------9----------- Q ss_pred HHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHCCCHH--CCCCEEEEECCCCCCCCHHHHHHHHCCCH---HHHHHHHHHH Q ss_conf 788865599998898720244677664300001022--17833530024786324267733200225---6899999999 Q gi|254780623|r 199 TKMEMDLRLEAAAFSEMAENTVKDQGFRVPKIDWNR--TERDVITMEWIDGVKISDTEKLRACGHDL---ERLSVTLVQS 273 (517) Q Consensus 199 l~~ElD~~~Ea~n~~~~~~~~~~~~~v~vP~vy~~~--st~~VLvmE~i~G~~i~d~~~l~~~~~d~---~~la~~l~~~ 273 (517) T Consensus 43 ---~~~~~~E~~~l~~l~H-----pnI--V~l~g~~~~~~~~~lv~Ey~~~G~L~~~l~~~~~~~~~~~~~~~~~~ia~g 112 (256) T cd05113 43 ---EDEFIEEAKVMMKLSH-----EKL--VQLYGVCTKQRPIYIVTEYLANGCLLNYLREGLKRPTPSQLLEMCKDVCEG 112 (256) T ss_pred ---HHHHHHHHHHHHHCCC-----CCC--CCEEEEEEECCEEEEEEECCCCCCHHHHHHHCCCCCCHHHHHHHHHHHHHH T ss_conf ---8999999999986799-----897--609999988998999998079998899998548999999999999999999 Q ss_pred HHHHHHHCCEECCCCCCCEEEEECCCCEEEEECCHHEECCH Q ss_conf 99989744866178786228980289535743403121698 Q gi|254780623|r 274 FLLHTLRDGFFHADLHPGNLFVDSKGYIVAVDMGITGRLSK 314 (517) Q Consensus 274 ~~~qi~~~GfFHaDPHpGNi~v~~dg~i~~lDfG~vg~l~~ 314 (517) T Consensus 113 -l~yLH~~~iiHrDlK~~NiLid~~~~~Kl~DFGls~~~~~ 152 (256) T cd05113 113 -MAYLESKQFIHRDLAARNCLVDSNGTVKVSDFGLSRYVLD 152 (256) T ss_pred -HHHHHHCCCCCCCCCCCEEEECCCCCEEEEECCCCEECCC T ss_conf -9987058943165772769888999799961688517788

HHsearch alignment for GI: 254780623 and conserved domain: cd05113