>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=95.62 E-value=0.021 Score=35.71 Aligned_cols=129 Identities=20% Similarity=0.321 Sum_probs=73.2 Q ss_pred EEEEECCCCHHHHHHHHHHHCCCCEEEEEECCCCCHHHHHHHHHHHCCCCCCCCEEEECCCHHHHCCCCEEEEECCCCCC Q ss_conf 28998898136899999995799869999657881289883076205446887568526974883789789995566667 Q gi|254781048|r 5 KIALIGSGMIGGTLAHLAVLKKLGDVVLLDIVDGMPRGKALDIAESSPVEGFGAQLCGTSDYSDIAEADVCIVTAGIPRK 84 (320) Q Consensus 5 KV~IIGaG~VG~~~a~~~~~~~l~ei~L~D~~~~~~~g~~~Dl~~~~~~~~~~~~v~~~~d~~~l~~aDivVitag~~~~ 84 (320) T Consensus 1 KVlvvGaGglGce~~k~La~~Gvg~i~iiD~D~I-------e~S------NLnRQfL-------f~~~dv-----Gk--- 52 (234) T cd01484 1 KVLLVGAGGIGCELLKNLALMGFGQIHVIDMDTI-------DVS------NLNRQFL-------FRPKDI-----GR--- 52 (234) T ss_pred CEEEECCCHHHHHHHHHHHHCCCCEEEEECCCEE-------CCC------CCCHHHC-------CCCCCC-----CC--- T ss_conf 9899948887999999999839986999759900-------567------7013024-------464426-----88--- Q ss_pred CCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCEEEECCCC---HHHHHHHHHHCCCCHHHHHHHCCCHHHHHHHHHHHHHC Q ss_conf 655746789988999999997654126674088714842---07899998844998656110005256899999999971 Q gi|254781048|r 85 PSMSRDDLLADNLKAIEKVGAGIRKYAPNSFVICITNPL---DAMVWALQKFSGLPSHMVVGMAGILDSARFRYFLAQEF 161 (320) Q Consensus 85 ~g~~R~dll~~N~~i~~~i~~~i~~~~p~~i~ivvtNPv---Dv~~~~~~~~sg~~~~rViG~Gt~LDs~R~~~~ia~~l 161 (320) T Consensus 53 ---~Ka~v----------Aa~~l~~~Np~~~I~~~~~~v~~e~~~~~~f~~~--~D--vVi---~alDN~~aR~~vN~~c 112 (234) T cd01484 53 ---PKSEV----------AAEAVNDRNPNCKVVPYQNKVGPEQDFNDTFFEQ--FH--IIV---NALDNIIARRYVNGML 112 (234) T ss_pred ---CHHHH----------HHHHHHHHCCCCEEEEEECCCCCCCCCCHHHHHH--CC--EEE---ECCCCHHHHHHHHHHH T ss_conf ---22999----------9999998789977999805568621057988852--99--999---8857888999999999 Q ss_pred CC-CCCCCEEEEECCCCCEEE Q ss_conf 98-733550567507885246 Q gi|254781048|r 162 GV-SVESVTALVLGSHGDSMV 181 (320) Q Consensus 162 ~v-~~~~V~~~ViGeHGds~v 181 (320) T Consensus 113 ~~~~~PLIegGt~G~~Gqv~~ 133 (234) T cd01484 113 IFLIVPLIESGTEGFKGNAQV 133 (234) T ss_pred HHHCCCEEEECCCCCEEEEEE T ss_conf 980998597202461479999

HHsearch alignment for GI: 254781048 and conserved domain: cd01484