HHsearch alignment for GI: 254780828 and conserved domain: cd03751

>cd03751 proteasome_alpha_type_3 proteasome_alpha_type_3. 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=99.94  E-value=2e-25  Score=178.87  Aligned_cols=170  Identities=19%  Similarity=0.100  Sum_probs=135.6

Q ss_pred             CCEEEEEEEECCEEEEEECCCCCCCCEEEECCCEEEEEECCCEEEEEECCHHHHHHHHHHHHHHHHHHHCC--CCCCCHH
Q ss_conf             37179999979979998136545053677445105798159759997313058899999999999998536--6563067
Q gi|254780828|r   14 HATTILTVRKDGVVVIAGDGQVSLGQTVMKANARKVRRLGKGNIIAGFAGSSADAFTLLERLEKKLEQYPN--QLLRSSV   91 (190)
Q Consensus        14 ~GTTivgi~~~dgVviAaDtR~S~G~~v~sr~~~KI~~i~d~~~~~g~ag~a~d~~~~~~~~~~~~~~~~~--~~~~~~~   91 (190)
T Consensus        29 ~G~T~VGik~kdgVVlaa~k~~~s-~l~~~~~~~KI~~I~~~ig~a-~sGl~~D~~~lv~~~r~~a~~~~~~~~~~i~v~  106 (212)
T cd03751          29 NSGTAIGIRCKDGVVLAVEKLVTS-KLYEPGSNKRIFNVDRHIGIA-VAGLLADGRHLVSRAREEAENYRDNYGTPIPVK  106 (212)
T ss_pred             CCCCEEEEEECCEEEEEEECCCCC-CCCCCCCCCEEEEECCCEEEE-EEECCHHHHHHHHHHHHHHHHHHHHHCCCCCHH
T ss_conf             269789998289899999625776-563566445489964882799-985757489999999999999999858998899


Q ss_pred             HHHHHHHHHHH-------HHHCCCE--EEECCCCCCEEEEECCCCCEECCCEEEEECCHHHHHHHHHHHHCCCCCHHH--
Q ss_conf             99999976112-------2201310--451378764699805863114132799606423457889852078999899--
Q gi|254780828|r   92 ELAKDWRMDKY-------LRNLEAM--ILIADKTITLVITGMGDVLEPENGVMAIGSGGSYALSAARALMSTQNSAEE--  160 (190)
Q Consensus        92 ~~~~~~~~~~y-------~~~~~~~--~~~~~~~~~~~~~~d~~g~~~~~~~~a~GSGs~~A~g~Le~~y~~~~sa~e--  160 (190)
T Consensus       107 ~la~~ls~~~q~~tq~~~~RPfGvslli~G~D~~gp~Ly~~dPsG~~~~~~a~AiG~~s~~a~~~LEk~y~~~ms~eeai  186 (212)
T cd03751         107 VLADRVAMYMHAYTLYSSVRPFGCSVLLGGYDSDGPQLYMIEPSGVSYGYFGCAIGKGKQAAKTELEKLKFSELTCREAV  186 (212)
T ss_pred             HHHHHHHHHHHHHHCCCCCCCCCEEEEEEEECCCCCEEEEECCCCCEECCEEEEECCCCHHHHHHHHHHCCCCCCHHHHH
T ss_conf             99999999999861445546673168999971897479999899887460499978997899999987554899999999


Q ss_pred             -HHHHHHHHHHCCCEEECCCEEEEEE
Q ss_conf             -9999999754011022595699999
Q gi|254780828|r  161 -IARKAMSIAADICVYTNHNIVLETL  185 (190)
Q Consensus       161 -la~~Al~~A~erDvyTgd~i~i~~i  185 (190)
T Consensus       187 ~la~~al~~~~de~~~~~~~~e~~~i  212 (212)
T cd03751         187 KEAAKIIYIVHDEIKDKAFELELSWV  212 (212)
T ss_pred             HHHHHHHHHHHHHCCCCCCEEEEEEC
T ss_conf             99999999973104698723899839