title: A general method for cloning recA genes of gram-positive bacteria by polymerase chain reaction.
abstract: An internal fragment of the recA gene from eight gram-positive organisms has been amplified by using degenerate primers in a polymerase chain reaction. The internal 348- or 360-bp recA DNA segments from Bacillus subtilis, Clostridium acetobutylicum, Lactobacillus bulgaricus, Lactobacillus helveticus, Leuconostoc mesanteroides, Listeria monocytogenes, Staphylococcus aureus, and Streptococcus salivarus subsp. thermophilus were amplified, cloned, and sequenced. The G + C contents of the DNA from these species range from 28 to 52%. The sequences of the bacterial recA genes show strong relatedness. This method is particularly useful for the recovery of the recA genes of gram-positive bacteria and avoids the difficulties of using a genetic complementation test for cloning.
authors.affiliation: Laboratoire de Génétique Microbienne, Institut National de la Recherche Agronomique, Jouy en Josas, France.
authors.forename: P
authors.initials: P
authors.lastname: Duwat
authors.forename: S D
authors.initials: SD
authors.lastname: Ehrlich
authors.forename: A
authors.initials: A
authors.lastname: Gruss
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D005798:Genes, Bacterial; D006094:Gram-Positive Bacteria / Q000235:genetics*; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D011938:Rec A Recombinases / Q000235:genetics*
chemical_list: D011938:Rec A Recombinases