HHsearch alignment for GI: 254780158 and conserved domain: cd01485

>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=90.94  E-value=1  Score=24.63  Aligned_cols=36  Identities=22%  Similarity=0.299  Sum_probs=28.9

Q ss_pred             CCCEEEEECCCHHHHHHHHHHHHCCCE-EEEEECCCC
Q ss_conf             887899980989899999999887978-999967677
Q gi|254780158|r    2 KKKTIGIIGGGQLARMLSMSAARLGFC-TVILDPDSN   37 (354)
Q Consensus         2 ~~k~IgIlG~GqL~rml~~aA~~lG~~-v~v~d~~~~   37 (354)
T Consensus        18 ~~s~VlVvG~GGLG~~v~~~La~aGVg~i~ivD~D~V   54 (198)
T cd01485          18 RSAKVLIIGAGALGAEIAKNLVLAGIDSITIVDHRLV   54 (198)
T ss_pred             HHCCEEEECCCHHHHHHHHHHHHCCCCEEEEEECCCC
T ss_conf             7098999877889999999999749986999959963