HHsearch alignment for GI: 254780311 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=99.95  E-value=3.3e-27  Score=166.63  Aligned_cols=145  Identities=24%  Similarity=0.363  Sum_probs=118.8

Q ss_pred             EEECCCCCCCCCCCCC-CCEEHHHHHCCCEEEEEEECCCCCCCCCHHHCHHHHHHHHHHHHHCCCEEEEEECCCCHHHHH
Q ss_conf             9536706884036888-402358983897499998228878741001010465311245531011023430354011366
Q gi|254780311|r   13 MRVATVLPDGSKAFQW-KDVNTQDLFAGKRVFLFALPGAFTPTCSDHQLPGFEKIYDDLRCEGIEEVYCLSVNDAFVMNA   91 (177)
Q Consensus        13 ikvGd~~Pd~tl~~~~-~~~~~~d~f~gKkVvL~~~P~AfTp~Ct~~~~~~~~~~~~~~~~~~~~~i~~~s~~d~~~~~a   91 (177)
T Consensus         1 l~vGd~aP~F~l~~~~g~~v~L~d~~g~~~vvl~F~p~~~cp~C~~e-~~~~~~~~~~~~~~~v-~Vv~IS~D~~~~~~~   78 (149)
T cd03018           1 LEVGDKAPDFELPDQNGQEVRLSEFRGRKPVVLVFFPLAFTPVCTKE-LCALRDSLELFEAAGA-EVLGISVDSPFSLRA   78 (149)
T ss_pred             CCCCCCCCCEEEECCCCCEEEHHHHCCCCEEEEEEECCCCCCCCCHH-HHHHHHHHHHHHCCCE-EEEEECCCCHHHHHH
T ss_conf             98979886979499998998689976998099999888899975878-9888888887634783-999636999999999


Q ss_pred             HHCCCCCCEEEEEEC--CCHHHHHHHHCCCCCCCCCCCEEEEEEEEEEC-CCEEEEEEECCCCCCCCCCCCCCCCCHHHH
Q ss_conf             522358752786103--67154333200224765434410015999987-996999997488777877777324899999
Q gi|254780311|r   92 WGKKLEIKNVKLLPD--GSGEFTRKMGMLVYKDNVGFGLRSWRYGALIK-DMVVESWFVEEGFSDNCATDPYEISSPENV  168 (177)
Q Consensus        92 w~~~~~~~~~~~l~D--~~~~~~~~~g~~~~~~~~g~g~rs~R~a~Ii~-dG~I~~~~~E~~~~~~~~~d~~~vs~ae~i  168 (177)
T Consensus        79 f~~~~~l~-fpllsD~~~~~~va~~ygv~~~~--~g~---~~r~tfiID~~G~V~~~~v~~~---------~~~r~~~~~  143 (149)
T cd03018          79 WAEENGLT-FPLLSDFWPHGEVAKAYGVFDED--LGV---AERAVFVIDRDGIIRYAWVSDD---------GEPRDLPDY  143 (149)
T ss_pred             HHHHHCCC-CEEEEECCCCCCHHHHCCCCCCC--CCC---CCCEEEEECCCCEEEEEEEECC---------CCCCCHHHH
T ss_conf             99987999-61999689870249886995067--798---4488999979998999999079---------967885799


Q ss_pred             HHHHHH
Q ss_conf             999986
Q gi|254780311|r  169 LKVIRE  174 (177)
Q Consensus       169 L~~Lk~  174 (177)
T Consensus       144 ~~~l~a  149 (149)
T cd03018         144 DEALDA  149 (149)
T ss_pred             HHHHCC
T ss_conf             999659