>gnl|CDD|131894 TIGR02847, CyoD, cytochrome o ubiquinol oxidase subunit IV. Cytochrome o terminal oxidase complex is the component of the aerobic respiratory chain which reacts with oxygen, reducing it to water with the concomitant transport of 4 protons across the membrane. Also known as the cytochrome bo complex, cytochrome o ubiquinol oxidase contains four subunits, two heme b cofactors and a copper atom which is believed to be the oxygen active site. This complex is structurally related to the cytochrome caa3 oxidases which utilize cytochrome c as the reductant and contain heme a cofactors, as well as the intermediate form aa3 oxidases which also react directly with quinones as the reductant. Length = 96

 Score = 98.1 bits (245), Expect = 5e-22
 Identities = 46/97 (47%), Positives = 74/97 (76%), Gaps = 1/97 (1%)

Query: 14  YGTKKQCLVGFILSLILTIIPFGIVMKGFFLDKNIMCLTIVLCAIAQIIVHLVFFLHMST 73
           +G+ K  L+GF+LS+ILT IPFG+VM G    K +  + I++ A+ QI+VHLVFFLH++T
Sbjct: 1   HGSLKSYLIGFVLSVILTAIPFGLVMSGTL-SKGLTLVIIIVLAVVQILVHLVFFLHLNT 59

Query: 74  KVEDGWSIMAMIFTIIMVAICFVGSMWVMYHLNNNMM 110
             E  W++++++FTI+++ I   GS+W+M++LN+NMM
Sbjct: 60  SSEQRWNLISLLFTILIIFILIGGSIWIMHNLNHNMM 96