>cd01484 E1-2_like Ubiquitin activating enzyme (E1), repeat 2-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. 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 homologou

Probab=95.04 E-value=0.19 Score=28.11 Aligned_cols=155 Identities=17% Similarity=0.099 Sum_probs=70.2 Q ss_pred EEEEECCCCHHHHHHHHHHHHHCCCEEEEEECCCC-CCCHHHHHHHHCCCCEEEEECCCCCHH--HHHHHHHHCCCCEEE Q ss_conf 48997678827799999999868987999947887-658567776203797499976388999--999998622787178 Q gi|254780920|r 2 RLIVTGGAGFIGSALCRYLVNDLKIQVLVIDKLTY-AGNLNSLKEISQSNLFSFLQVDICDRE--CIRSALKEFQPDAIV 78 (358) Q Consensus 2 kILItG~tGfIGs~l~~~Ll~~~~~~V~~~d~~~~-~~~~~~~~~~~~~~~v~~i~~Di~d~~--~l~~~~~~~~~d~Vi 78 (358) T Consensus 1 KVlvvGaGg-lGce~~k~La~~Gvg~i~iiD~D~Ie~SNLnR--------QfLf~~~dvGk~Ka~vAa~~l~~~Np~~~I 71 (234) T cd01484 1 KVLLVGAGG-IGCELLKNLALMGFGQIHVIDMDTIDVSNLNR--------QFLFRPKDIGRPKSEVAAEAVNDRNPNCKV 71 (234) T ss_pred CEEEECCCH-HHHHHHHHHHHCCCCEEEEECCCEECCCCCCH--------HHCCCCCCCCCCHHHHHHHHHHHHCCCCEE T ss_conf 989994888-79999999998399869997599005677013--------024464426882299999999987899779 Q ss_pred EEC-CCCCCCCCCC--CCCCCCCCCCCCCCHHHHHHHHHCCCCCCCCCCCEEEEECCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 512-3433222222--2222222222222024788865123221124784278630554311222222222222222222 Q gi|254780920|r 79 NFA-AESHVDRSIL--GADEFITTNIIGTFILLEETRLWWSCLSQDKKDQFRFLQISTDEVYGSLDKGLFSEDMPYNPSS 155 (358) Q Consensus 79 HlA-a~~~~~~~~~--~p~~~~~~Nv~gt~nil~~~~~~~~~~~~~~~~~~~~v~~SS~~vYg~~~~~~~~E~~~~~p~s 155 (358) T Consensus 72 ~~~~~~v~-~e~~~~~~f~~~~DvVi~alDN~~--aR~~vN~~--c~~~~~PLIegGt~G~~Gqv~~I-i-----P~~T~ 140 (234) T cd01484 72 VPYQNKVG-PEQDFNDTFFEQFHIIVNALDNII--ARRYVNGM--LIFLIVPLIESGTEGFKGNAQVI-L-----PGMTE 140 (234) T ss_pred EEEECCCC-CCCCCCHHHHHHCCEEEECCCCHH--HHHHHHHH--HHHHCCCEEEECCCCCEEEEEEE-E-----CCCCC T ss_conf 99805568-621057988852999998857888--99999999--99809985972024614799998-3-----89977 Q ss_pred CCCCCCCCCEEEECCCCCCCCCCCCCCCCC Q ss_conf 223332210000001233322222222222 Q gi|254780920|r 156 PYSATKASSDYLVLAWGHTYGIPVLLSNCS 185 (358) Q Consensus 156 ~Yg~sK~~~E~~~~~~~~~~~l~~~ilR~~ 185 (358) T Consensus 141 Cy~C~~~---------~~~~~~p~CTi~~~ 161 (234) T cd01484 141 CIECTLY---------PPQKNFPMCTIASM 161 (234) T ss_pred CCCCCCC---------CCCCCCCCCCCCCC T ss_conf 8689999---------98887775305799

HHsearch alignment for GI: 254780920 and conserved domain: cd01484