RPSBLAST alignment for GI: 254780747 and conserved domain: cd07021

>gnl|CDD|132932 cd07021, Clp_protease_NfeD_like, Nodulation formation efficiency D (NfeD) is a membrane-bound ClpP-class protease. Nodulation formation efficiency D (NfeD; stomatin operon partner protein, STOPP; DUF107) is a member of membrane-anchored ClpP-class proteases. Currently, more than 300 NfeD homologs have been identified - all of which are bacterial or archaeal in origin. Majority of these genomes have been shown to possess operons containing a homologous NfeD/stomatin gene pair, causing NfeD to be previously named STOPP (stomatin operon partner protein). NfeD homologs can be divided into two groups: long and short forms. Long-form homologs have a putative ClpP-class serine protease domain while the short form homologs do not. Downstream from the ClpP-class domain is the so-called NfeD or DUF107 domain. N-terminal region of the NfeD homolog PH1510 (1510-N or PH1510-N) from Pyrococcus horikoshii has been shown to possess serine protease activity and has a Ser-Lys catalytic dyad, preferentially cleaving hydrophobic substrates. Difference in oligomeric form and catalytic residues between 1510-N (forming a dimer) and ClpP (forming a tetradecamer) shows a possible functional difference: 1510-N is likely to have a regulatory function while ClpP is involved in protein quality control. Length = 178
 Score = 50.7 bits (122), Expect = 5e-07
 Identities = 45/200 (22%), Positives = 82/200 (41%), Gaps = 35/200 (17%)

Query: 41  IAIRGQIEDSQE-LIERIERISRDDSATALIVSLSSPGGSAYAGEAIFRAIQKVKNRKPV 99
           I I G+I+      +ER  + ++++ A A+++ + +PGG   +   I   I       P 
Sbjct: 4   IPIEGEIDPGLAAFVERALKEAKEEGADAVVLDIDTPGGRVDSALEIVDLILNS--PIPT 61

Query: 100 ITEVHEMAASAGYLISCASNIIVAAETSLVGSIGVLFQYPYVKPFLDKLGVSIKSVKSSP 159
           I  V++ AASAG LI+ A++ I  A  + +G+   +       P         K    S 
Sbjct: 62  IAYVNDRAASAGALIALAADEIYMAPGATIGAAEPI-------PGDGNGAADEKVQ--SY 112

Query: 160 MKAEPSPFSE---VNPKAVQMMQDVVDSSYHWFVRLVSESRNIPYDKTLVLSDGRIWT-- 214
            +A+    +E    +P   + M              V +   +P    + +  G + T  
Sbjct: 113 WRAKMRAAAEKKGRDPDIAEAM--------------VDKDIEVP---GVGIKGGELLTLT 155

Query: 215 GAEAKKVGLID-VVGGQEEV 233
             EA KVG  + + G  +E+
Sbjct: 156 ADEALKVGYAEGIAGSLDEL 175