>cd03749 proteasome_alpha_type_1 proteasome_alpha_type_1. The 20S proteasome, multisubunit proteolytic complex, is the central enzyme of nonlysosomal protein degradation in both the cytosol and nucleus. It is composed of 28 subunits arranged as four homoheptameric rings that stack on top of one another forming an elongated alpha-beta-beta-alpha cylinder with a central cavity. The proteasome alpha and beta subunits are members of the N-terminal nucleophile (Ntn)-hydrolase superfamily. Their N-terminal threonine residues are exposed as a nucleophile in peptide bond hydrolysis. Mammals have 7 alpha and 7 beta proteasome subunits while archaea have one of each.

Probab=99.95 E-value=2.8e-26 Score=184.12 Aligned_cols=169 Identities=15% Similarity=0.042 Sum_probs=139.6 Q ss_pred CCEEEEEEEECCEEEEEECCCCCCCCEEEECCCEEEEEECCCEEEEEECCHHHHHHHHHHHHHHHHHHHCCC--CCCCHH Q ss_conf 371799999799799981365450536774451057981597599973130588999999999999985366--563067 Q gi|254780828|r 14 HATTILTVRKDGVVVIAGDGQVSLGQTVMKANARKVRRLGKGNIIAGFAGSSADAFTLLERLEKKLEQYPNQ--LLRSSV 91 (190) Q Consensus 14 ~GTTivgi~~~dgVviAaDtR~S~G~~v~sr~~~KI~~i~d~~~~~g~ag~a~d~~~~~~~~~~~~~~~~~~--~~~~~~ 91 (190) T Consensus 26 ~G~t~VGik~kdgVVla~~kr~~~~l---~~~~~KI~~I~~~ig~~-~sG~~~D~~~lv~~~r~~a~~~~~~~~~~i~v~ 101 (211) T cd03749 26 QGSATVGLKSKTHAVLVALKRATSEL---SSYQKKIFKVDDHIGIA-IAGLTADARVLSRYMRQECLNYRFVYDSPIPVS 101 (211) T ss_pred CCCCEEEEEECCEEEEEEECCCCCCC---CCHHCCEEEECCCEEEE-EECCCCCHHHHHHHHHHHHHHHHHHHCCCCCHH T ss_conf 38978999959989999970255557---87001389947980799-824673299999999999999999849975399 Q ss_pred HHHHHHHHHH-------HHHHCCCE--EEECCCCCCEEEEECCCCCEECCCEEEEECCHHHHHHHHHHHHC--CCCCHH- Q ss_conf 9999997611-------22201310--45137876469980586311413279960642345788985207--899989- Q gi|254780828|r 92 ELAKDWRMDK-------YLRNLEAM--ILIADKTITLVITGMGDVLEPENGVMAIGSGGSYALSAARALMS--TQNSAE- 159 (190) Q Consensus 92 ~~~~~~~~~~-------y~~~~~~~--~~~~~~~~~~~~~~d~~g~~~~~~~~a~GSGs~~A~g~Le~~y~--~~~sa~- 159 (190) T Consensus 102 ~La~~ls~~~q~~tq~~~~RPfgv~lli~G~D~~gp~Ly~~DPsG~~~~~~a~aiG~gs~~a~~~LEk~y~~~~~~s~ee 181 (211) T cd03749 102 RLVSKVAEKAQINTQRYGRRPYGVGLLIAGYDESGPHLFQTCPSGNYFEYKATSIGARSQSARTYLERHFEEFEDCSLEE 181 (211) T ss_pred HHHHHHHHHHHHHCCCCCCCCCEEEEEEEEECCCCCEEEEECCCCCEEEEEEEEECCCCHHHHHHHHHHCCCCCCCCHHH T ss_conf 99999999988620023657834689999973996389998799888611089999998899999998726688999999 Q ss_pred --HHHHHHHHHHHCCCE-EECCCEEEEEEE Q ss_conf --999999997540110-225956999994 Q gi|254780828|r 160 --EIARKAMSIAADICV-YTNHNIVLETLK 186 (190) Q Consensus 160 --ela~~Al~~A~erDv-yTgd~i~i~~i~ 186 (190) T Consensus 182 av~lA~~aL~~~~~~~~~l~~~~ieiavvg 211 (211) T cd03749 182 LIKHALRALRETLPGEQELTIKNVSIAIVG 211 (211) T ss_pred HHHHHHHHHHHHHCCCCCCCCCCEEEEEEC T ss_conf 999999999998516676486735999969

HHsearch alignment for GI: 254780828 and conserved domain: cd03749