HHsearch alignment for GI: 254780274 and conserved domain: TIGR01249

>TIGR01249 pro_imino_pep_1 proline iminopeptidase; InterPro: IPR005944 Proteolytic enzymes that exploit serine in their catalytic activity are ubiquitous, being found in viruses, bacteria and eukaryotes . They include a wide range of peptidase activity, including exopeptidase, endopeptidase, oligopeptidase and omega-peptidase activity. Over 20 families (denoted S1 - S66) of serine protease have been identified, these being grouped into clans on the basis of structural similarity and other functional evidence . Structures are known for members of the clans and the structures indicate that some appear to be totally unrelated, suggesting different evolutionary origins for the serine peptidases . Not withstanding their different evolutionary origins, there are similarities in the reaction mechanisms of several peptidases. Chymotrypsin, subtilisin and carboxypeptidase C have a catalytic triad of serine, aspartate and histidine in common: serine acts as a nucleophile, aspartate as an electrophile, and histidine as a base . The geometric orientations of the catalytic residues are similar between families, despite different protein folds . The linear arrangements of the catalytic residues commonly reflect clan relationships. For example the catalytic triad in the chymotrypsin clan (PA) is ordered HDS, but is ordered DHS in the subtilisin clan (SB) and SDH in the carboxypeptidase clan (SC) , . 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. This group of serine peptidase belong to MEROPS peptidase family S33 (clan SC). They are proline iminopeptidase (Prolyl aminopeptidase, 3.4.11.5 from EC), which catalyzes the removal of the N-terminal proline from peptides. This family represents one of two related families of proline iminopeptidase containing the alpha/beta fold. The fine specificities of the various members, including both the range of short peptides from which proline can be removed and whether other amino acids such as alanine can be also removed, may vary among members. ; GO: 0016804 prolyl aminopeptidase activity, 0005737 cytoplasm.
Probab=99.75  E-value=2.1e-17  Score=134.66  Aligned_cols=117  Identities=22%  Similarity=0.299  Sum_probs=83.8

Q ss_pred             CEEEEEEEEECCCCCCCEEEEEECCCCCCHHHHHHHHHHHHHCCCEEEEECCHHHCCCCCCCCCCCCCCCHHHHHHHHHH
Q ss_conf             37899999734889996799998868789888999999999869899995860208855367876665563999999999
Q gi|254780274|r   12 TIHKSVHSYNQTHKTPRAIILACQSIEENIEDYNDFREYFAEENVAVYIYSYRNTIKTTSDYLRDYPKNTSDTTIVCDVM   91 (317)
Q Consensus        12 ~~~~~~~~~~~~~~~p~~~vl~~HG~~~~~~~~~~~~~~l~~~G~~V~a~D~rG~G~s~~~~~~~~~~~~~~~~~~~d~~   91 (317)
T Consensus        13 d~H~LYy-e~~GnP~G~PV~-~lHGGPGsGt~-~~~r~fFdpe~~rIvL~DQRGcGkS~p~a---~~~eNtTWdLV~DiE   86 (310)
T TIGR01249        13 DNHQLYY-EQSGNPDGKPVV-FLHGGPGSGTD-PECRRFFDPETYRIVLLDQRGCGKSTPHA---CLEENTTWDLVADIE   86 (310)
T ss_pred             CEEEEEE-ECCCCCCCCEEE-EEECCCCCCCC-CCCCCCCCCCCEEEEEEEECCCCCCCCCC---CCCCCCCHHHHHHHH
T ss_conf             6135422-106798995489-97568789988-34464537663589998307888986243---322477056674399


Q ss_pred             HHHHHHHHHCCCCEEEEEECCCCHHHHHHHHHHCCHHHHEHEECCCC
Q ss_conf             99999998559955999933872289999999683232132022777
Q gi|254780274|r   92 KLRTLISEKHGNTSVLLFGYSLGTIIALSTLLKYPQKFSGIALWNLD  138 (317)
Q Consensus        92 ~~~~~~~~~~~~~~v~lvGhS~GG~ia~~~a~~~p~~v~~lvl~~~~  138 (317)
T Consensus        87 kLR~----~L~I~~W~vFGGSWGStLALaYAq~HP~~v~~lvLRgiF  129 (310)
T TIGR01249        87 KLRE----KLGIKKWLVFGGSWGSTLALAYAQTHPEKVTGLVLRGIF  129 (310)
T ss_pred             HHHH----HCCCCCEEEECCCHHHHHHHHHHCCCCHHHHHHHHHHHH
T ss_conf             9998----628971488538778999999860162465355655676