RPSBLAST alignment for GI: 254780369 and conserved domain: cd01985

>gnl|CDD|30172 cd01985, ETF, The electron transfer flavoprotein (ETF) serves as a specific electron acceptor for various mitochondrial dehydrogenases. ETF transfers electrons to the main respiratory chain via ETF-ubiquinone oxidoreductase. ETF is an heterodimer that consists of an alpha and a beta subunit which binds one molecule of FAD per dimer . A similar system also exists in some bacteria. The homologous pair of proteins (FixA/FixB) are essential for nitrogen fixation. The alpha subunit of ETF is structurally related to the bacterial nitrogen fixation protein fixB which could play a role in a redox process and feed electrons to ferredoxin. The beta subunit protein is distantly related to and forms a heterodimer with the alpha subunit.. Length = 181

 Score =  101 bits (253), Expect = 2e-22
 Identities = 42/164 (25%), Positives = 76/164 (46%), Gaps = 8/164 (4%)

Query: 13  DYNQENLSEQTARIVTAAQKIS---HDIHVLVLGDNIENIAQQAARIQGVTQVIVAQSTI 69
           D  +  L+      V AA ++     ++  LV+G     +A + A   G  +V++ +   
Sbjct: 11  DTAELVLNPLDLEAVEAALRLKEYGGEVTALVIGPPAAEVALREALAMGADKVLLVEDPA 70

Query: 70  FRHKLAGPVSDFVVSIARDYKT--IMASANAMGKDILPRVAAMLDVMQVSEVIEIIS--- 124
                    +  + ++ +  K   I+A A ++GK + PRVAA+L V Q+S+V ++     
Sbjct: 71  LAGYDPEATAKALAALIKKEKPDLILAGATSIGKQLAPRVAALLGVPQISDVTKLEIDGG 130

Query: 125 PKIFKRPSYTGNIIQTIETTDTYQIITIRAIAFPPAPKAEKVAS 168
                RP Y GN ++T+E+ D   +IT+R  AF P   +     
Sbjct: 131 DLTVTRPIYAGNGLETVESPDLPAVITVRPGAFEPRYPSGPGKK 174