Project description:Transcriptonal profiling of Leuconostoc gasicomitatum LMG18811T (wild type) grown in MRS medium with or without heme. Mutant LMG18811T::pSIP1333A (mutating cydB gene which is essential in the respiratory chain) grown in MRS with or without heme. Comparing mutant and wildtype with and without heme.

2013-02-08 | GSE41281 | GEO

Leuconostoc mesenteroides strain:pig

Project description:Leuconostoc mesenteroides strain: Genome sequencing

| PRJNA1138510 | ENA

Plasmid-encoded diacetyl (acetoin) reductase in Leuconostoc pseudomesenteroides.

Project description:A plasmid-borne diacetyl (acetoin) reductase (butA) from Leuconostoc pseudomesenteroides CHCC2114 was sequenced and cloned. Nucleotide sequence analysis revealed an open reading frame encoding a protein of 257 amino acids which had high identity at the amino acid level to diacetyl (acetoin) reductases reported previously. Downstream of the butA gene of L. pseudomesenteroides, but coding in the opposite orientation, a putative DNA recombinase was identified. A two-step PCR approach was used to construct FPR02, a butA mutant of the wild-type strain, CHCC2114. FPR02 had significantly reduced diacetyl (acetoin) reductase activity with NADH as coenzyme, but not with NADPH as coenzyme, suggesting the presence of another diacetyl (acetoin)-reducing activity in L. pseudomesenteroides. Plasmid-curing experiments demonstrated that the butA gene is carried on a 20-kb plasmid in L. pseudomesenteroides.

| S-EPMC152458 | biostudies-literature

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