>cd07860 STKc_CDK2_3 The catalytic domain of the Serine/Threonine Kinases, Cyclin-Dependent protein Kinase 2 and 3. Serine/Threonine Kinases (STKs), Cyclin-dependent protein kinase 2 (CDK2) and CDK3 subfamily, catalytic (c) domain. STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The CDK2/3 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. CDKs belong to a large family of STKs that are regulated by their cognate cyclins. Together, they are involved in the control of cell-cycle progression, transcription, and neuronal function. CDK2 is regulated by cyclin E or cyclin A. Upon activation by cyclin E, it phosphorylates the retinoblastoma (pRb) protein which activates E2F mediated transcription and allows cells to move into S phase. The CDK2/cyclin A comp

Probab=98.70 E-value=4.5e-08 Score=81.76 Aligned_cols=137 Identities=20% Similarity=0.316 Sum_probs=80.2 Q ss_pred HHHHHHHHHHHHHHHEECCCCCCEEEEEEECCHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHHH Q ss_conf 66677888865555021288872368764031046887777889998753211468543346917999999988788865 Q gi|254780623|r 125 DPIAAASIAQVHPAVVHDINGYRKVAVKIIRPGVRKRFFRDIQVMYLIARIQEKLLPSMRRLCFSAVVRALEQVTKMEMD 204 (517) Q Consensus 125 ePlasASiaQVh~A~l~d~~~g~~VaVKV~rP~i~~~i~~Dl~~l~~~~~~~~~~~~~~~~~~~~~~~~e~~~~l~~ElD 204 (517) T Consensus 6 ~~iG~G~fg~V~~~~~~--~t~~~vAiK~i~~~~~~--------------------------------~~~~~~~~---- 47 (284) T cd07860 6 EKIGEGTYGVVYKARNK--LTGEVVALKKIRLDTET--------------------------------EGVPSTAI---- 47 (284) T ss_pred EECCCCCCEEEEEEEEC--CCCCEEEEEEECCCCCC--------------------------------HHHHHHHH---- T ss_conf 78523658499999988--99989999998122133--------------------------------36699999---- Q ss_pred HHHHHHHHHHHHCCCCCCCCCCCHHCCCHHC--CCCEEEEECCCCCCCCHHHHHHHHCCCHHHHHHHHHHHHHHHHH--- Q ss_conf 5999988987202446776643000010221--78335300247863242677332002256899999999999897--- Q gi|254780623|r 205 LRLEAAAFSEMAENTVKDQGFRVPKIDWNRT--ERDVITMEWIDGVKISDTEKLRACGHDLERLSVTLVQSFLLHTL--- 279 (517) Q Consensus 205 ~~~Ea~n~~~~~~~~~~~~~v~vP~vy~~~s--t~~VLvmE~i~G~~i~d~~~l~~~~~d~~~la~~l~~~~~~qi~--- 279 (517) T Consensus 48 --~Ei~il~~l~-----HpnI--v~l~~~~~~~~~~yiv~E~~~~-~L~~~--~~~~--~~~~~~~~~i~~~~~Qil~al 113 (284) T cd07860 48 --REISLLKELN-----HPNI--VKLLDVIHTENKLYLVFEFLHQ-DLKKF--MDAS--PLSGIPLPLIKSYLFQLLQGL 113 (284) T ss_pred --HHHHHHHHCC-----CCCE--EEEEEEECCCCEEEEEEECCCC-CHHHH--HHHC--CCCCCCHHHHHHHHHHHHHHH T ss_conf --9999998679-----9998--1461004449989999964898-78999--8752--568999999999999999999 Q ss_pred ----HCCEECCCCCCCEEEEECCCCEEEEECCHHEECC Q ss_conf ----4486617878622898028953574340312169 Q gi|254780623|r 280 ----RDGFFHADLHPGNLFVDSKGYIVAVDMGITGRLS 313 (517) Q Consensus 280 ----~~GfFHaDPHpGNi~v~~dg~i~~lDfG~vg~l~ 313 (517) T Consensus 114 ~yLH~~~IiHRDiKPeNILl~~~~~iKl~DFGla~~~~ 151 (284) T cd07860 114 AFCHSHRVLHRDLKPQNLLINTEGAIKLADFGLARAFG 151 (284) T ss_pred HHHHHCCCEEEECCHHHEEECCCCCEEEEECCCCCCCC T ss_conf 99987893673267566468899989994357522468

HHsearch alignment for GI: 254780623 and conserved domain: cd07860