HHsearch alignment for GI: 254780281 and conserved domain: cd03018

>cd03018 PRX_AhpE_like Peroxiredoxin (PRX) family, AhpE-like subfamily; composed of proteins similar to Mycobacterium tuberculosis AhpE. AhpE is described as a 1-cys PRX because of the absence of a resolving cysteine. The structure and sequence of AhpE, however, show greater similarity to 2-cys PRXs than 1-cys PRXs. PRXs are thiol-specific antioxidant (TSA) proteins that confer a protective role in cells through their peroxidase activity in which hydrogen peroxide, peroxynitrate, and organic hydroperoxides are reduced and detoxified using reducing equivalents derived from either thioredoxin, glutathione, trypanothione and AhpF. The first step of catalysis is the nucleophilic attack by the peroxidatic cysteine on the peroxide leading to the formation of a cysteine sulfenic acid intermediate. The absence of a resolving cysteine suggests that functional AhpE is regenerated by an external reductant. The solution behavior and crystal structure of AhpE show that it forms dimers and octamers.
Probab=99.70  E-value=2.9e-16  Score=119.03  Aligned_cols=138  Identities=23%  Similarity=0.307  Sum_probs=101.6

Q ss_pred             CCCCCCEEEECCCCCEECHHHHCC-CEEEEEE-ECCCCCCCCHHHHHHHHHHHHHHCCCCCCEEEEEEEECCCCCCHHHH
Q ss_conf             666787079829997967788499-6799996-04777654468888776555430244333058876514333330577
Q gi|254780281|r   33 RRFNSDVHLVAQDGTDFSLSSLYI-KPSIVFF-GFTNCSAVCPTTLSRLDRLLKQVDPTGTLLNAYFITVDPKRDTPEVM  110 (201)
Q Consensus        33 ~~~~~~f~L~d~~G~~~~~~~~~G-k~~li~F-~~T~Cpd~Cp~~l~~l~~~~~~l~~~~~~v~~v~IsvDP~rDt~e~l  110 (201)
T Consensus         4 Gd~aP~F~l~~~~g~~v~L~d~~g~~~vvl~F~p~~~cp-~C~~e~~~~~~~~~~~~~~~--v~Vv~IS~----D~~~~~   76 (149)
T cd03018           4 GDKAPDFELPDQNGQEVRLSEFRGRKPVVLVFFPLAFTP-VCTKELCALRDSLELFEAAG--AEVLGISV----DSPFSL   76 (149)
T ss_pred             CCCCCCEEEECCCCCEEEHHHHCCCCEEEEEEECCCCCC-CCCHHHHHHHHHHHHHHCCC--EEEEEECC----CCHHHH
T ss_conf             798869794999989986899769980999998888999-75878988888888763478--39996369----999999


Q ss_pred             HHHHHHCCCCEECCCCCHHHHHHHHHHCCEEEEECCCCCCCCCCCEEEEEEEEEEEECCCCCEEEEECCCC----CHHHH
Q ss_conf             77753136864224589889898888609088622565567777525874206999858982999857898----88999
Q gi|254780281|r  111 KKFVQRFSDRIIGISGDPIDVMRVAKNFRIYVNNVLAEKSGVEEKYFVDHTTALLLFDTAGSIVGVIPYKD----DSDSA  186 (201)
Q Consensus       111 ~~y~~~~~~~~~~ltg~~~~i~~l~~~~~v~~~~~~~~~~~~~~~y~i~H~~~~~lid~~G~i~~~~~~~~----~~~~i  186 (201)
T Consensus        77 ~~f~~~~~l~fpllsD~-~~~~~va~~ygv~~~~~-----g~~-------~r~tfiID~~G~V~~~~v~~~~~~r~~~~~  143 (149)
T cd03018          77 RAWAEENGLTFPLLSDF-WPHGEVAKAYGVFDEDL-----GVA-------ERAVFVIDRDGIIRYAWVSDDGEPRDLPDY  143 (149)
T ss_pred             HHHHHHHCCCCEEEEEC-CCCCCHHHHCCCCCCCC-----CCC-------CCEEEEECCCCEEEEEEEECCCCCCCHHHH
T ss_conf             99999879996199968-98702498869950677-----984-------488999979998999999079967885799


Q ss_pred             HHHH
Q ss_conf             9999
Q gi|254780281|r  187 IEKI  190 (201)
Q Consensus       187 ~~~i  190 (201)
T Consensus       144 ~~~l  147 (149)
T cd03018         144 DEAL  147 (149)
T ss_pred             HHHH
T ss_conf             9996