S-layer gene as a molecular marker for identification of Lactobacillus helveticus.
The paper describes two methods that allow rapid and accurate identification of Lactobacillus helveticus strains based on the nucleotide sequence of the gene coding for the surface layer (S-layer) protein. The first method is based on a polymerase chain reaction amplification using primers targeting a specific fragment of the S-layer gene. The second method involved a portion of the S-layer gene of L. helveticus as a probe in a hybridisation test. The specificity of these protocols was checked for DNA samples isolated from various Lactobacillus strains.
Centro Richerche Biotecnologiche, Università Cattolica del Sacro Cuore, Cremona, Italy.
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Ventura
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Callegari
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Morelli
D001426:Bacterial Proteins / Q000235:genetics*; D005798:Genes, Bacterial; D005819:Genetic Markers; D007778:Lactobacillus / Q000235:genetics* / Q000302:isolation & purification*; D008562:Membrane Glycoproteins / Q000235:genetics*; D016133:Polymerase Chain Reaction
D001426:Bacterial Proteins; D005819:Genetic Markers; D008562:Membrane Glycoproteins; C055764:S-layer proteins