>cd05078 PTK_Jak2_Jak3_rpt1 Pseudokinase (Repeat 1) Domain of the Protein Tyrosine Kinases, Janus kinases 2 and 3. Protein Tyrosine Kinase (PTK) family; Janus kinase 2 (Jak2) and Jak3; pseudokinase domain (repeat 1). The PTKc (catalytic domain) family to which this subfamily belongs, 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. Jak2 and Jak3 are members of the Janus kinase (Jak) subfamily of proteins, which are cytoplasmic (or nonreceptor) tyr kinases containing an N-terminal FERM domain, followed by a Src homology 2 (SH2) domain, a pseudokinase domain, and a C-terminal tyr kinase domain. The pseudokinase domain shows similarity to tyr kinases but lacks crucial residues for catalytic activity and ATP binding. It modulates the kinase activity

Probab=98.36 E-value=1.4e-06 Score=70.06 Aligned_cols=139 Identities=12% Similarity=0.164 Sum_probs=80.1 Q ss_pred HHHHHHHHHHHHHHHEECCC-C----CCEEEEEEECCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHH Q ss_conf 66677888865555021288-8----723687640310468877778899987532114685433469179999999887 Q gi|254780623|r 125 DPIAAASIAQVHPAVVHDIN-G----YRKVAVKIIRPGVRKRFFRDIQVMYLIARIQEKLLPSMRRLCFSAVVRALEQVT 199 (517) Q Consensus 125 ePlasASiaQVh~A~l~d~~-~----g~~VaVKV~rP~i~~~i~~Dl~~l~~~~~~~~~~~~~~~~~~~~~~~~e~~~~l 199 (517) T Consensus 1 e~iG~G~fg~Vykg~~~~~~~~~~~~~~~vaiK~~~~~~~------------------------------~~~~------ 44 (258) T cd05078 1 ESLGQGTFTKIFKGIRREVGDYGELHKTEVLLKVLDKSHR------------------------------NYSE------ 44 (258) T ss_pred CCCCCCCCCEEEEEEECCCCCCCCEEEEEEEEEEECCCCC------------------------------HHHH------ T ss_conf 9155689989999998988874413003889998555661------------------------------5899------ Q ss_pred HHHHHHHHHHHHHHHHHCCCCCCCCCCCHHCCCHH--CCCCEEEEECCCCCCCCHHHHHHHHC--CCH---HHHHHHHHH Q ss_conf 88865599998898720244677664300001022--17833530024786324267733200--225---689999999 Q gi|254780623|r 200 KMEMDLRLEAAAFSEMAENTVKDQGFRVPKIDWNR--TERDVITMEWIDGVKISDTEKLRACG--HDL---ERLSVTLVQ 272 (517) Q Consensus 200 ~~ElD~~~Ea~n~~~~~~~~~~~~~v~vP~vy~~~--st~~VLvmE~i~G~~i~d~~~l~~~~--~d~---~~la~~l~~ 272 (517) T Consensus 45 ----~f~~E~~il~~l~H-----pnIV--~~~g~~~~~~~~~lV~Ey~~~GsL~~~--L~~~~~~~~~~~~l~i~~qia~ 111 (258) T cd05078 45 ----SFFEAASMMSQLSH-----KHLV--LNYGVCVCGDESIMVQEYVKFGSLDTY--LKKNKNLINISWKLEVAKQLAW 111 (258) T ss_pred ----HHHHHHHHHHHCCC-----CCEE--EEEEEEEECCEEEEEEEECCCCCHHHH--HHHCCCCCCHHHHHHHHHHHHH T ss_conf ----99999999986899-----7874--599999989988999992899958998--7501678999999999999999 Q ss_pred HHHHHHHHCCEECCCCCCCEEEEECCCC--------EEEEECCHHEECC Q ss_conf 9999897448661787862289802895--------3574340312169 Q gi|254780623|r 273 SFLLHTLRDGFFHADLHPGNLFVDSKGY--------IVAVDMGITGRLS 313 (517) Q Consensus 273 ~~~~qi~~~GfFHaDPHpGNi~v~~dg~--------i~~lDfG~vg~l~ 313 (517) T Consensus 112 g-l~yLH~~~iiHrDlK~~NiLl~~~~~~k~~~~~~~kl~DfG~s~~~~ 159 (258) T cd05078 112 A-LHFLEDKGLTHGNVCAKNVLLIREEDRKTGNPPFIKLSDPGISITVL 159 (258) T ss_pred H-HHHHHCCCCCCCCCCCCEEEECCCCCCCCCCCCCCEECCCCCCEEEE T ss_conf 9-99974489877856766388846677443675541322788760660

HHsearch alignment for GI: 254780623 and conserved domain: cd05078