>cd06651 STKc_MEKK3 Serine/threonine kinases (STKs), MAP/ERK kinase kinase 3 (MEKK3) subfamily, catalytic (c) domain. STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The MEKK3 subfamily is part of a larger superfamily that includes the catalytic domains of other protein STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. MEKK3 is a mitogen-activated protein kinase (MAPK) kinase kinase (MAPKKK or MKKK or MAP3K), that phosphorylates and activates the MAPK kinase MEK5 (or MKK5), which in turn phosphorylates and activates extracellular signal-regulated kinase 5 (ERK5). The ERK5 cascade plays roles in promoting cell proliferation, differentiation, neuronal survival, and neuroprotection. MEKK3 plays an essential role in embryonic angiogenesis and early heart development. In addition, MEKK3 is involved in interleukin-1 receptor and Toll-like receptor

Probab=97.22 E-value=0.0028 Score=40.87 Aligned_cols=142 Identities=15% Similarity=0.159 Sum_probs=70.2 Q ss_pred HCCCCCEEEEEECCCCCEEEEEEEEE-CCC-CEEEEEECCCCC----H---HHHHHHHHHHHHHHHCCCCCCCCCCCCHH Q ss_conf 48998605310046681200179994-399-589998216699----8---89999999999985326775551001026 Q gi|254780795|r 18 EYAIGQLNSVQPIIHGVENSNFVIQT-SKG-TFILTIYEKRMN----E---KDLPVFIELLHYISRNKLPCPIPIPRNDG 88 (316) Q Consensus 18 ~y~lg~~~~~~~i~~G~~Ntny~v~t-~~~-~yiLri~e~~~~----~---~~l~~~~~ll~~L~~~gipvP~pi~~~~G 88 (316) T Consensus 3 ny~~~~~-----lG~G~fg~Vy~~~~~~tg~~~AvK~i~~~~~~~~~~~~~~~~~~Ei~~l~~l~H-----pnIv~~~~- 71 (266) T cd06651 3 NWRRGKL-----LGQGAFGRVYLCYDVDTGRELAAKQVQFDPESPETSKEVSALECEIQLLKNLQH-----ERIVQYYG- 71 (266) T ss_pred CCEECCE-----EECCCCEEEEEEEECCCCCEEEEEEEECCCCCHHHHHHHHHHHHHHHHHHHCCC-----CCEEEEEE- T ss_conf 9883538-----512758199999988999799999995363543669999999999999985899-----99713899- Q ss_pred HHHHHH-CCCCEEEEECCCCCCCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHHHCCCHHHHHHH Q ss_conf 778752-2451557864788707689989999999986436753068754332311245645766752001552278899 Q gi|254780795|r 89 KLYGFL-CKKPANIFSFIKGSPLNHISDIHCEEIGSMLASMHQKTKNFHLYRKNTLSPLNLKFLWAKCFDKVDEDLKKEI 167 (316) Q Consensus 89 ~~~~~~-~~k~~~L~~~i~G~~~~~~~~~~~~~lG~~La~lH~~~~~f~~~r~~~~~~~~~~~~~~~~~~~~~~~~~~~l 167 (316) T Consensus 72 -~~~~~~~~~l~ivmEy~~gg~L~~-----------~l---~~~-~~l~--------e~~~------------~~~~~qi 115 (266) T cd06651 72 -CLRDRAEKTLTIFMEYMPGGSVKD-----------QL---KAY-GALT--------ESVT------------RKYTRQI 115 (266) T ss_pred -EEEECCCCEEEEEEECCCCCCHHH-----------HH---HHC-CCCC--------HHHH------------HHHHHHH T ss_conf -999689978999997119598899-----------99---874-9999--------9999------------9999999 Q ss_pred HHHHHHHHHHHHHCCCCCEEECCCCCCCEEECCCCCEEEECCCCCC Q ss_conf 9999988876521077744402234642256279604873162135 Q gi|254780795|r 168 DHEFCFLKESWPKNLPTGIIHADLFPDNVLFYNNKIMGLIDFYFSC 213 (316) Q Consensus 168 ~~~l~~~~~~~~~~Lp~g~IHgDl~~~NiL~~~~~i~giIDF~~~~ 213 (316) T Consensus 116 l~aL~ylH~-------~~IiHRDlKp~NIL~~~~~~vKl~DFG~a~ 154 (266) T cd06651 116 LEGMSYLHS-------NMIVHRDIKGANILRDSAGNVKLGDFGASK 154 (266) T ss_pred HHHHHHHHH-------CCEEECCCCHHHEEECCCCCEEECCCCCCC T ss_conf 999999986-------996524387899678789998984157311

HHsearch alignment for GI: 254780795 and conserved domain: cd06651