>cd01485 E1-1_like Ubiquitin activating enzyme (E1), repeat 1-like. E1, a highly conserved small protein present universally in eukaryotic cells, is part of cascade to attach ubiquitin (Ub) covalently to substrate proteins. This cascade consists of activating (E1), conjugating (E2), and/or ligating (E3) enzymes and then targets them for degradation by the 26S proteasome. E1 activates ubiquitin by C-terminal adenylation, and subsequently forms a highly reactive thioester bond between its catalytic cysteine and ubiquitin's C-terminus. The E1 also associates with E2 and promotes ubiquitin transfer to the E2's catalytic cysteine. A set of novel molecules with a structural similarity to Ub, called Ub-like proteins (Ubls), have similar conjugation cascades. In contrast to ubiquitin-E1, which is a single-chain protein with a weakly conserved two-fold repeat, many of the Ubls-E1are a heterodimer where each subunit corresponds to one half of a single-chain E1. This CD represents the family homol

Probab=96.81 E-value=0.0024 Score=39.96 Aligned_cols=122 Identities=16% Similarity=0.171 Sum_probs=64.2 Q ss_pred CCCCEEEEECCCCHHHHHHHHHHHHCCC-EEEEEECCCCCCHHHHCCCCEE---EEECCC--HHHHHHHHHHCCCCEEEE Q ss_conf 9644799968788277999999998798-8999926876752130238679---842689--999999987569889995 Q gi|254780328|r 1 MENKNVLVVGGAGYIGAHTCRVLYERGF-LPIVLDNLSSGHAEFVLWGPLE---QVDICD--YTNLRAVFAKYQPASVMH 74 (333) Q Consensus 1 m~~kkIlItG~tGfiGs~l~~~L~~~g~-~v~~~d~~~~~~~~~~~~~~~~---~~Di~d--~~~l~~~~~~~~~d~ViH 74 (333) T Consensus 17 L~~s~VlVvG~GG-LG~~v~~~La~aGVg~i~ivD~D~Ve-~sNL~RQ~l~~~~~~diG~~Ka~~a~~~l~~lNp~v~i~ 94 (198) T cd01485 17 LRSAKVLIIGAGA-LGAEIAKNLVLAGIDSITIVDHRLVS-TEDLGSNFFLDAEVSNSGMNRAAASYEFLQELNPNVKLS 94 (198) T ss_pred HHHCCEEEECCCH-HHHHHHHHHHHCCCCEEEEEECCCCC-CCCCCCCEEECCCCCCCCCCHHHHHHHHHHHHCCCCEEE T ss_conf 9709899987788-99999999997499869999599635-335775750265411168729999999999779997799 Q ss_pred CHHHC------CCCCCCC--CCEEEEEECCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 71440------1122343--100123301233322211222222222222333322222 Q gi|254780328|r 75 FAGLT------NISESVK--NPSLFYEINIKGSFNLIATAIESNVRRFIFSSTCATYGI 125 (333) Q Consensus 75 lAa~~------~~~~~~~--~p~~~~~~Nv~gt~~ll~~~~~~~~~~~i~~SS~~vYG~ 125 (333) T Consensus 95 ~~~~~~~~~~~n~~~~~~~~DlVvd~~dn~~~r~~in~~c~~~~i-PlI~ga~~G~~G~ 152 (198) T cd01485 95 IVEEDSLSNDSNIEEYLQKFTLVIATEENYERTAKVNDVCRKHHI-PFISCATYGLIGY 152 (198) T ss_pred EEECCCCCCHHHHHHHHHCCCEEEECCCCHHHHHHHHHHHHHHCC-CEEEEECCCCEEE T ss_conf 982244577868999984899999999999999999999999299-8899974566856

HHsearch alignment for GI: 254780328 and conserved domain: cd01485