Phenotype: Mucoidy

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Description

an overproduction of colanic acid, an exopolysaccharide common to enteric bacteria, is the main cause of a mucoid phenotype[1].

Basis for the Phenotype

Below is a list of papers that discuss the characterization of the mucoid phenotype

  • REGULATORY MECHANISMS FOR SYNTHESIS OF CAPSULAR POLYSACCHARIDE IN MUCOID MUTANTS [2]
  • THE CAPSULAR POLYSACCHARIDE OF A MUCOID VARIANT OF E. COLI K 12.[3]
  • Control of colanic acid synthesis[4]

Mutants

Phenotypic Suppressors

  • Ochre Suppressors[7]

References

  1. ↑ Bush, JW & Markovitz, A (1973) The Genetic Basis for Mucoidy and Radiation Sensitivity in capR (lon) Mutants of E. coli K-12. Genetics 74 215-25 PubMed
  2. ↑ 2.0 2.1 MARKOVITZ, A (1964) REGULATORY MECHANISMS FOR SYNTHESIS OF CAPSULAR POLYSACCHARIDE IN MUCOID MUTANTS OF ESCHERICHIA COLI K12. Proc. Natl. Acad. Sci. U.S.A. 51 239-46 PubMed
  3. ↑ SAPELLI, RV & GOEBEL, WF (1964) THE CAPSULAR POLYSACCHARIDE OF A MUCOID VARIANT OF E. COLI K 12. Proc. Natl. Acad. Sci. U.S.A. 52 265-71 PubMed
  4. ↑ Grant, WD et al. (1970) Control of colanic acid synthesis. J. Bacteriol. 103 89-96 PubMed
  5. ↑ Markovitz, A & Rosenbaum, N (1965) A regulator gene that is dominant on an episome and recessive on a chromosome. Proc. Natl. Acad. Sci. U.S.A. 54 1084-91 PubMed
  6. ↑ Lieberman, MM & Markovitz, A (1970) Depression of guanosine diphosphate-mannose pyrophosphorylase by mutations in two different regulator genes involved in capsular polysaccharide synthesis in Escherichia coli K-12. J. Bacteriol. 101 965-72 PubMed
  7. ↑ Markovitz, A & Baker, B (1967) Suppression of radiation sensitivity and capsular polysaccharide synthesis in Escherichia coli K-12 by ochre suppressors. J. Bacteriol. 94 388-95 PubMed