HHsearch alignment for GI: 254780971 and conserved domain: TIGR01382

>TIGR01382 PfpI intracellular protease, PfpI family; InterPro: IPR006286 Peptidases are grouped into clans and families. Clans are groups of families for which there is evidence of common ancestry. Each clan is identified with two letters, the first representing the catalytic type of the families included in the clan (with the letter 'P' being used for a clan containing families of more than one of the catalytic types serine, threonine and cysteine). Some families cannot yet be assigned to clans, and when a formal assignment is required, such a family is described as belonging to clan A-, C-, M-, S-, T- or U-, according to the catalytic type. Some clans are divided into subclans because there is evidence of a very ancient divergence within the clan, for example MA(E), the gluzincins, and MA(M), the metzincins. Families are grouped by their catalytic type, the first character representing the catalytic type: A, aspartic; C, cysteine; G, glutamic acid; M, metallo; S, serine; T, threonine; and U, unknown. The serine, threonine and cysteine peptidases utilise the amino acid as a nucleophile and form an acyl intermediate - these peptidases can also readily act as transferases. In the case of aspartic, glutamic and metallopeptidases, the nucleophile is an activated water molecule. Cysteine peptidases have characteristic molecular topologies, which can be seen not only in their three-dimensional structures, but commonly also in the two-dimensional structures. These are peptidases in which the nucleophile is the sulphydryl group of a cysteine residue. Cysteine proteases are divided into clans (proteins which are evolutionary related), and further sub-divided into families, on the basis of the architecture of their catalytic dyad or triad . This group of cysteine peptidases belong to MEROPS peptidase family C56 (Pfp1 endopeptidase, clan PC(C)). The member of this family from Pyrococcus horikoshii has been solved to 2 Angstrom resolution. It is an ATP-independent intracellular protease that crystallises as a hexameric ring. Cys-101 is proposed as the active site residue in a catalytic triad with the adjacent His-102 and a Glu residue from an adjacent monomer. A member of this family from Bacillus subtilis, GSP18, has been shown to be expressed in response to several forms of stress. A role in the degradation of small peptides has been suggested. This family is contained in a larger one of the thiamine biosynthesis protein ThiJ and its homologs.; GO: 0016798 hydrolase activity acting on glycosyl bonds.
Probab=98.47  E-value=1.4e-07  Score=69.33  Aligned_cols=60  Identities=37%  Similarity=0.662  Sum_probs=53.1

Q ss_pred             CCCCCCCCEEEECCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCEEEEECCCHHHHEECCCHHH
Q ss_conf             46445647899728734543114067752002121223322059717860640310100000101
Q gi|254780971|r   36 DTDIPDVDLIVIPGGFSYGDYLRCGAIAARTPVMQAIKKKAQQGIKVMGICNGFQILVELNLLPG  100 (219)
Q Consensus        36 ~~~l~~~d~lvipGGFSygD~l~aG~i~~~~~~~~~i~~~~~~g~~vLGICNGfQiL~elGLlPg  100 (219)
T Consensus        71 ~v~~~~YDal~ipGG~a~~e~LR-----~d~~~~~lvR~f~e~gK~vaaIChgp~lLi~A~VlrG  130 (189)
T TIGR01382        71 DVDPEDYDALVIPGGRASPEYLR-----LDEKVIRLVREFVEKGKPVAAICHGPQLLISAGVLRG  130 (189)
T ss_pred             CCCHHHCCEEEEECCCCCCCCCC-----CCHHHHHHHHHHHHCCCEEEEEECCCEEEEECCEECC
T ss_conf             47852564789717735600014-----8768999999984178819998453000002551037