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