Combrex Enter Keyword, gene symbol, or identifier (more options; Help )
Enter species name
Gene functional status (select)
Phenotype association (select)[View list of phenotypes]
Check to restrict search to:
Genes in Category A-C and Emerging/Re-Emerging pathogens
Genes in curated Protein Clusters
Genes with predictions submitted to COMBREX
Genes with solved structures in PDB
Genes with Pfam domains shared with human proteins
Genes with products purified by PSI
Genes cloned by PSI
close options


Gene mcbA from Escherichia coli str. K-12 substr. MG1655: colanic acid mucoidy stimulation protein
Member of NCBI Protein Clusters CLSK879771(See COMBREX Page ) (See NCBI page)
NCBI Entrez GeneID 947523
UniProtKB accession
RefSeq Protein accession NP_415327.2 (PROVISIONAL)
Gene Symbol(s)
  • symbol: mcbA
  • locus tag: b0806
  • aliases: ECK0795, JW5106, ybiM
Organism Escherichia coli str. K-12 substr. MG1655 (NCBI TaxID: 511145)
Other Cross References:
  • S
    Structure(s) available in PDB:
  • C
    Gene cloned by a participant in the Protein Structure Initiative (PSI): TargetDB. (To obtain a clone, please contact the PSI:Biology-Materials Repository.)
  • U
    Protein purified by a participant in the Protein Structure Initiative (PSI): TargetDB. (If you are interested in collaborating to obtain the protein, please contact the Northeast Structural Genomics consortium).
  • Protein described in EcoCyc: G6415
Initiate the grant application process for experimentally validating this gene (Important notice about COMBREX grants.)
Contribute a predicted function for this gene (free text, GO terms, or EC number) (info). Be sure to check the list of current predicted functions in the section immediately below beforehand.
Nominate this gene for the Gold Standard Gene Database (if you believe it has been experimentally validated) (info).
Post a comment about this gene to appear on this page (info).
Source Predicted function(s)
NCBI Protein Cluster Prediction predicted protein
Source References Functional description
GSDB Under Review MqsR-controlled colanic acid and biofilm protein A (source organism: Escherichia coli K12; strain specific ID: NCBI_TaxID=83333)
Functional Status greenGreen (experimental evidence, uncurated)
GO terms
  • CC: GO:0031236 : extrinsic to external side of plasma membrane, in periplasmic space : RCA
  • BP: GO:0009242 : colanic acid biosynthetic process : IMP
  • CC: GO:0042597 : periplasmic space : IEA
Domain Structure from CDD
  • DUF1471: Protein of unknown function (DUF1471). hypothetical protein; Provisional

See domain structure on NCBI Conserved Domain Database
Domain structure from Pfam
See domain structure on Pfam Database
Based on the function of this gene, COMBREX predictions were made to the following related genes (mouse over gene symbol for details) [Download ]
ECH74115_0955 , EcolC_2837 , ECP_0820 , EcSMS35_0830 , ybiM (3)