RPSBLAST alignment for GI: 254780859 and conserved domain: cd02771

>gnl|CDD|29467 cd02771, MopB_NDH-1_NuoG2-N7, MopB_NDH-1_NuoG2-N7: The second domain of the NuoG subunit (with a [4Fe-4S] cluster, N7) of the NADH-quinone oxidoreductase/NADH dehydrogenase-1 (NDH-1) found in various bacteria. The NDH-1 is the first energy-transducting complex in the respiratory chain and functions as a redox pump that uses the redox energy to translocate H+ ions across the membrane, resulting in a significant contribution to energy production. In Escherichia coli NDH-1, the largest subunit is encoded by the nuoG gene, and is part of the 14 distinct subunits constituting the functional enzyme. The NuoG subunit is made of two domains: the first contains three binding sites for FeS clusters (the fer2 domain), the second domain (this CD), is of unknown function or, as postulated, has lost an ancestral formate dehydrogenase activity that became redundant during the evolution of the complex I enzyme. Unique to this group, compared to the other prokaryotic and eukaryotic groups in this domain protein family (NADH-Q-OR-NuoG2), is an N-terminal [4Fe-4S] cluster (N7/N1c) present in the second domain. Although only vestigial sequence evidence remains of a molybdopterin binding site, this protein domain belongs to the molybdopterin_binding (MopB) superfamily of proteins.. Length = 472
 Score =  146 bits (369), Expect = 2e-35
 Identities = 112/445 (25%), Positives = 177/445 (39%), Gaps = 71/445 (15%)

Query: 238 ALGSAIRIDARGCEVMRILPRINESINEEWISDKTRFIWDGLKVQ-RLDCPYARINGRLK 296
           ++G  I +  R  E+ R+  R N ++N  ++ D+ RF +  +  + RL  P  R  G L 
Sbjct: 8   SVGCNISLGERYGELRRVENRYNGAVNHYFLCDRGRFGYGYVNSRDRLTQPLIRRGGTLV 67

Query: 297 PVSWDYALKAIKSAVLSSDVKLGAVVGDLSSVEEIYAL-KLLMQSLGCENFDCRQNGEYL 355
           PVSW+ AL    + +  +  K+G +    +S E  YAL KL+   LG  N D R     L
Sbjct: 68  PVSWNEALDVAAARLKEAKDKVGGIGSPRASNESNYALQKLVGAVLGTNNVDHR--ARRL 125

Query: 356 DPSYGRASYIFNPTIQGIEEADAMLIIGSNPRLEAAVLNARIRKRWRR------------ 403
                R   I+ P+++ IE ADA+L++G +    A  +   +R+  RR            
Sbjct: 126 IAEILRNGPIYIPSLRDIESADAVLVLGEDLTQTAPRIALALRQAARRKAVELAALSGIP 185

Query: 404 -------------GNFPIAVIG-------DVGELRYKYEHLGNGSE--ALADLVSGQHPF 441
                           P+ ++        D+     +    G      ALA  V      
Sbjct: 186 KWQDAAVRNIAQGAKSPLFIVNALATRLDDIAAESIRASPGGQARLGAALARAVDASAAG 245

Query: 442 FK-------------KLQEATRPLIIVGQGALRASDNVEVMANIAKLVIDVGGISDSWNG 488
                          +L  A +PLI+ G     + + ++  AN+AK  +   G +     
Sbjct: 246 VSGLAPKEKAARIAARLTGAKKPLIVSG-TLSGSLELIKAAANLAK-ALKRRGENAGLTL 303

Query: 489 FAVLHTVASRVGALDLGFVPADDTINAMNILD-----KTDIVFLLGADELDFSD------ 537
              +    S  G L LG    +  ++    L        D + +LG D    +       
Sbjct: 304 --AVEEGNSP-GLLLLGGHVTEPGLDLDGALAALEDGSADALIVLGNDLYRSAPERRVEA 360

Query: 538 ---KQALTVYIGSHGDRGAQSADVILPGAAYTEKSGLWVNTEGRVQMGMRAIF-PPGDAK 593
                   V +       A+ ADV+LP A++ EKSG +VN EGR Q   +A   P GDA+
Sbjct: 361 ALDAAEFVVVLDHFLTETAERADVVLPAASFAEKSGTFVNYEGRAQRFFKAYDDPAGDAR 420

Query: 594 EDWEIICALADELKCSLPFSSLSQL 618
            DW  + ALA +L   L  S  + L
Sbjct: 421 SDWRWLHALAAKLGGKLVPSDAAIL 445