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fixB putative electron transfer flavoprotein FixB [ Escherichia coli str. K-12 substr. MG1655 ]

Gene ID: 948939, updated on 10-Feb-2026
Official Symbol
fixB
Official Full Name
putative electron transfer flavoprotein FixB
Primary source
ECOCYC:EG11563
Locus tag
b0042
See related
ASAP:ABE-0000147
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Escherichia coli str. K-12 substr. MG1655 (strain: K-12, substrain: MG1655)
Lineage
Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Escherichia
Also known as
ECK0043; yaaR
Summary
FixA and FixB are required for anaerobic carnitine reduction . [More information is available at EcoCyc: EG11563].
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Sequence:
NC_000913.3 (43188..44129)

NC_000913.3Genomic Context describing neighboring genes Neighboring gene L-carnitine:gamma-butyrobetaine antiporter Neighboring gene putative electron transfer flavoprotein FixA Neighboring gene putative oxidoreductase FixC Neighboring gene putative ferredoxin FixX Neighboring gene putative transporter YaaU

Genomic Sequence:
NC_000913.3

Go to nucleotide: Graphics FASTA GenBank

Related articles in PubMed

  1. The fixA and fixB genes are necessary for anaerobic carnitine reduction in Escherichia coli. Walt A, et al. J Bacteriol, 2002 Jul. PMID 12081978, Free PMC Article
  2. The distance between Escherichia coli genes is related to gene expression levels. Eyre-Walker A. J Bacteriol, 1995 Sep. PMID 7665529, Free PMC Article
  3. The fix Escherichia coli region contains four genes related to carnitine metabolism. Eichler K, et al. J Basic Microbiol, 1995. PMID 7473063
  4. Regulation of the carnitine pathway in Escherichia coli: investigation of the cai-fix divergent promoter region. Buchet A, et al. J Bacteriol, 1998 May. PMID 9573142, Free PMC Article
  5. Systematic sequencing of the Escherichia coli genome: analysis of the 0-2.4 min region. Yura T, et al. Nucleic Acids Res, 1992 Jul 11. PMID 1630901, Free PMC Article

See all (11) citations in PubMed

GeneRIFs: Gene References Into Functions

Products Interactant Other Gene Complex Source Pubs Description

Homology

Gene Ontology Provided by EcoCyc

Function Evidence Code Pubs
enables electron transfer activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables electron transfer activity IEA
Inferred from Electronic Annotation
more info
  
enables flavin adenine dinucleotide binding IBA
Inferred from Biological aspect of Ancestor
more info
  
enables flavin adenine dinucleotide binding IEA
Inferred from Electronic Annotation
more info
  
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
acts_upstream_of_or_within carnitine catabolic process IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in carnitine metabolic process IEA
Inferred from Electronic Annotation
more info
  
acts_upstream_of_or_within carnitine metabolic process IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in fatty acid beta-oxidation using acyl-CoA dehydrogenase IBA
Inferred from Biological aspect of Ancestor
more info
  
Preferred Names
putative electron transfer flavoprotein FixB

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

  1. NC_000913.3 Reference assembly

    Range
    43188..44129
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NP_414584.1 putative electron transfer flavoprotein FixB

    See identical proteins and their annotated locations for NP_414584.1

    Status: REVIEWED

    UniProtKB/TrEMBL
    A0A376MDY2, A0A6C9QAF7
    Conserved Domains (1) summary
    PRK03363
    Location:1 → 313
    fixB; electron transfer flavoprotein subunit alpha/FixB family protein
Nucleotide Protein
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