>cd05092 PTKc_TrkA Catalytic Domain of the Protein Tyrosine Kinase, Tropomyosin Related Kinase A. Protein Tyrosine Kinase (PTK) family; Tropomyosin related kinase A (TrkA); 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. TrkA is a member of the Trk subfamily of proteins, which are receptor tyr kinases (RTKs) containing an extracellular region with arrays of leucine-rich motifs flanked by two cysteine-rich clusters followed by two immunoglobulin-like domains, a transmembrane segment, and an intracellular catalytic domain. Binding of TrkA to its ligand, nerve growth factor (NGF), results in receptor oligomerization and activation of the catalytic domain. TrkA is expressed mainly in neural-crest-derived sensory

Probab=95.11 E-value=0.28 Score=27.92 Aligned_cols=151 Identities=17% Similarity=0.223 Sum_probs=69.7 Q ss_pred EECCCCCEEEEEEEEEC------CC-CEEEEEECCCCC--HHHHHHHHHHHHHHHHCCCCCCCCCCCCHHHHHHHHCCCC Q ss_conf 00466812001799943------99-589998216699--8899999999999853267755510010267787522451 Q gi|254780795|r 28 QPIIHGVENSNFVIQTS------KG-TFILTIYEKRMN--EKDLPVFIELLHYISRNKLPCPIPIPRNDGKLYGFLCKKP 98 (316) Q Consensus 28 ~~i~~G~~Ntny~v~t~------~~-~yiLri~e~~~~--~~~l~~~~~ll~~L~~~gipvP~pi~~~~G~~~~~~~~k~ 98 (316) T Consensus 11 ~~iG~G~fG~Vy~a~~~~~~~~~~~~~vAvK~l~~~~~~~~~~~~~E~~~l~~l~HpnI-----v~~~-g--~~~~~~~~ 82 (280) T cd05092 11 WELGEGAFGKVFLAECANLLPEQDKMLVAVKALKEANESARQDFQREAELLTVLQHQHI-----VRFY-G--VCTEGEPL 82 (280) T ss_pred EEECCCCCCEEEEEEECCCCCCCCCEEEEEEEECCCCHHHHHHHHHHHHHHHHCCCCCC-----CEEE-E--EEEECCEE T ss_conf 79545768689999986775587677999999785686899999999999986789986-----7088-8--99239989 Q ss_pred EEEEECCCCCCCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHH Q ss_conf 55786478870768998999999998643675306875433231124564576675200155227889999999888765 Q gi|254780795|r 99 ANIFSFIKGSPLNHISDIHCEEIGSMLASMHQKTKNFHLYRKNTLSPLNLKFLWAKCFDKVDEDLKKEIDHEFCFLKESW 178 (316) Q Consensus 99 ~~L~~~i~G~~~~~~~~~~~~~lG~~La~lH~~~~~f~~~r~~~~~~~~~~~~~~~~~~~~~~~~~~~l~~~l~~~~~~~ 178 (316) T Consensus 83 ~lvmEy~~~G~L~~----~l~~~~~-~~~~~~~~~~~~---~~~l---~~~~----~-----~~i~~qia~gl~yLHs-- 140 (280) T cd05092 83 AMVFEYMRHGDLNR----FLRSHGP-DAKILDEGKDVA---PGQL---TLPQ----M-----LHIAAQIASGMVYLAS-- 140 (280) T ss_pred EEEEEECCCCCHHH----HHHHHCC-CCCCCHHCCCCC---CCCC---CHHH----H-----HHHHHHHHHHHHHHHH-- T ss_conf 99998069990899----9987087-410000002466---6777---9999----9-----9999999999999840-- Q ss_pred HHCCCCCEEECCCCCCCEEECCCCCEEEECCCCCC Q ss_conf 21077744402234642256279604873162135 Q gi|254780795|r 179 PKNLPTGIIHADLFPDNVLFYNNKIMGLIDFYFSC 213 (316) Q Consensus 179 ~~~Lp~g~IHgDl~~~NiL~~~~~i~giIDF~~~~ 213 (316) T Consensus 141 -----~~iiHRDlKp~NiLl~~~~~~Kl~DFGls~ 170 (280) T cd05092 141 -----LHFVHRDLATRNCLVGEGLVVKIGDFGMSR 170 (280) T ss_pred -----CCCCCCCCCCCEEEECCCCCEEECCCEECC T ss_conf -----997368667142898799948975263033

HHsearch alignment for GI: 254780795 and conserved domain: cd05092