Conserved Protein Domain Family
FixQ
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pfam05545: FixQ 
Cbb3-type cytochrome oxidase component FixQ
This family consists of several Cbb3-type cytochrome oxidase components (FixQ/CcoQ). FixQ is found in nitrogen fixing bacteria. Since nitrogen fixation is an energy-consuming process, effective symbioses depend on operation of a respiratory chain with a high affinity for O2, closely coupled to ATP production. This requirement is fulfilled by a special three-subunit terminal oxidase (cytochrome terminal oxidase cbb3), which was first identified in Bradyrhizobium japonicum as the product of the fixNOQP operon.
Links
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Statistics
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PSSM-Id: 428515
Aligned: 63 rows
Threshold Bit Score: 31.7429
Created: 22-Mar-2022
Updated: 17-Oct-2022
Structure
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Aligned Rows:
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Sequence Alignment
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Format: Row Display: Color Bits: Type Selection: 
WP_013327759    4 NEFAAYAYFFLILFLVVGTYSYVYHLYTKRKdsTgVDYEHYSDMALKDD 52  Sulfurimonas autotrophica
BAN36447       11 ENTKPIS----LLIFFITFCAILFYVFGNKK--RgERLESYKNMPLQDD 53 
jgi:Ppha_2076   1 mTFSGMAYFLFTLLLATVLAGIIIYYYNPKR--K-QQVEEPKHRMLDDD 46 
O24957          5 ESLRGFAYAFFTILFTLFLYAYIFSMYRKQKkgI-MDYERYGYLALNDa 52  Helicobacter pylori
CBG40394        5 EMWRGISYVVITIFLVIFLYGYIISMYRKQKngS-RDYEKYADLALKDr 52 
BAF70722        4 RLIQGVLYLALIIFLTFVLYGYIIHLYRSEKkgE-RDYEKYGKMALDDE 51 
jgi:Nitsa_1937  4 TELQGYAYFFLTVFLVVILYGYILHLYRSEKkgE-ADYEKYGKMALDDE 51 
Q7MSS2          7 REIQAYAYWFFSLALVIFLCGYIFHIYRSQIkgT-RDYEKYGRLALDDE 54  Wolinella succinogenes
WP_006655391    7 KIIQGYAYWFITLLLVVLLYGYIYHLYKSQRsgK-IDYEKYARLALDDg 54  Helicobacter canadensis
Q7VGR2         12 VAYQKEIYLAVTLLLVVFLYGYVYHLYSSQAkgV-KDYEKYANLALNDN 59  Helicobacter hepaticus
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