1988
DOI: 10.1128/jb.170.9.4141-4146.1988
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Genetic analysis of extracellular proteins of Serratia marcescens

Abstract: Serratia marcescens, a gram-negative enteric bacterium, is capable of secreting a number of proteins extraceliularly. The types of activity found in the growth media include proteases, chitinases, a nuclease, and a lipase. Genetic studies have been undertaken to investigate the mechanisms used for the extracellular secretion of these exoproteins by S. marcescens. Many independent mutations affecting the extracellular enzymes were isolated after chemical and transposon mutagenesis. Using indicator media, we hav… Show more

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Cited by 85 publications
(66 citation statements)
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“…S. marcescens has been isolated from soil, water, plants and air (Grimont & Grimont, 1978). The ability of some S. marcescens strains to colonize a wide range of ecological niches has been linked to the production of a spectrum of extracellular products including chitinases, proteases, lipases, nucleases, bacteriocins, surfactants and wetting agents (Braun & Schmitz, 1980;Clegg & Allen, 1985;Hines et al, 1988;Matsuyama et al, 1995;Yanagida et al, 1986).…”
Section: Introductionmentioning
confidence: 99%
“…S. marcescens has been isolated from soil, water, plants and air (Grimont & Grimont, 1978). The ability of some S. marcescens strains to colonize a wide range of ecological niches has been linked to the production of a spectrum of extracellular products including chitinases, proteases, lipases, nucleases, bacteriocins, surfactants and wetting agents (Braun & Schmitz, 1980;Clegg & Allen, 1985;Hines et al, 1988;Matsuyama et al, 1995;Yanagida et al, 1986).…”
Section: Introductionmentioning
confidence: 99%
“…The ability of Sma to cause disease and to inhabit a wide variety of ecological niches has been linked to the production of an array of extracellular products, including proteases, chitinases, nucleases, lipases, wetting agents, bacteriocins and the bright red pigment, 2-methyl-3-pentyl-6-methoxyprodigiosin or prodigiosin (Pig; Braun and Schmitz, 1980;Clegg and Allen, 1985;Yanagida et al, 1986;Hines, 1988;Matsuyama et al, 1995).…”
Section: Introductionmentioning
confidence: 99%
“…All cultures were routinely grown in Luria-Bertani medium supplemented with 100 ,ug of ampicillin or 30 ,ug of chloramphenicol per ml as required. Protease indicator medium (skim milk plates) was Luria-Bertani agar with 1% nonfat dry powdered milk as previously described (16). Relative levels of protease activity were determined by measuring halo sizes produced on the skim milk plates.…”
Section: Materlals and Methodsmentioning
confidence: 99%