Autoregulation of the biosynthesis of the CcpA-like protein, PepR1, in Lactobacillus delbrueckii subsp bulgaricus.
PepR1 from Lactobacillus delbrueckii subsp bulgaricus (Lb. bulgaricus) is involved in biosynthesis regulation of the prolidase PepQ. In this paper, we demonstrated that Lb. bulgaricus PepR1 biosynthesis is not constitutive like those of several bacteria but is auto-regulated and depends on the glucose concentration of the culture medium. We propose a model for PepQ regulation by PepR1.
Morel
F
F
Unité de Microbiologie et Géneétique -UMR CNRS 5577, Université Lyon 1, Villeurbanne, France.
Lamarque
M
M
Bissardon
I
I
Atlan
D
D
Galinier
A
A
D001426:Bacterial Proteins; D004268:DNA-Binding Proteins; D004150:Dipeptidases / Q000378:metabolism; D006706:Homeostasis; D007778:Lactobacillus / Q000378:metabolism*; D011401:Promoter Regions, Genetic; D012097:Repressor Proteins; D020218:Response Elements; D015534:Trans-Activators / Q000096:biosynthesis* / Q000235:genetics
D001426:Bacterial Proteins; D004268:DNA-Binding Proteins; C402705:PepR1 protein, Lactobacillus delbrueckii; D012097:Repressor Proteins; D015534:Trans-Activators; C069286:catabolite control proteins, bacteria; D004150:Dipeptidases; C022449:proline dipeptidase