>gnl|CDD|73319 cd02750, MopB_Nitrate-R-NarG-like, Respiratory nitrate reductase A (NarGHI), alpha chain (NarG) and related proteins. Under anaerobic conditions in the presence of nitrate, E. coli synthesizes the cytoplasmic membrane-bound quinol-nitrate oxidoreductase (NarGHI), which reduces nitrate to nitrite and forms part of a redox loop generating a proton-motive force. Found in prokaryotes and some archaea, NarGHI usually functions as a heterotrimer. The alpha chain contains the molybdenum cofactor-containing Mo-bisMGD catalytic subunit. Members of the MopB_Nitrate-R-NarG-like CD belong to the molybdopterin_binding (MopB) superfamily of proteins.. Length = 461

 Score = 58.3 bits (141), Expect = 6e-09
 Identities = 29/93 (31%), Positives = 44/93 (47%), Gaps = 6/93 (6%)

Query: 550 DRGAQSADVILPGAAYTEKSGLWVNTEGR-VQMGMRAIFPPGDAKEDWEIICALADELKC 608
           D  A  +D++LP A + EK  L        +     A+ P  +AK DWEI  ALA +   
Sbjct: 374 DSTALYSDIVLPAATWYEKHDLSTTDMHPFIHPFSPAVDPLWEAKSDWEIFKALAKK--- 430

Query: 609 SLPFSSLSQLRSHLYSHHPHFMQLDEIRPSATD 641
            +P+ +L+  R   Y  H  F++L E  P+   
Sbjct: 431 -VPWRTLTG-RQQFYLDHDWFLELGETLPTYKP 461