Pentitol metabolism in Lactobacillus casei
نویسندگان
چکیده
منابع مشابه
Pentitol metabolism in Lactobacillus casei.
Strains of Lactobacillus casei capable of growing on either ribitol or xylitol carry out a heterolactic fermentation producing ethanol, acetate, and a mixture of D- and L-lactate. Following conversion of the pentitols to ribulose 5-phosphate or xylulose 5-phosphate via enzymatic steps unique to these organisms, the intermediate products are further metabolized by enzymes of the pentose pathway....
متن کاملGenetics of L-sorbose transport and metabolism in Lactobacillus casei.
Genes encoding L-sorbose metabolism of Lactobacillus casei ATCC 393 have been identified on a 6.8-kb chromosomal DNA fragment. Sequence analysis revealed seven complete genes and a partial open reading frame transcribed as two units. The deduced amino acid sequences of the first transcriptional unit (sorRE) showed high similarity to the transcriptional regulator and the L-sorbose-1-phosphate re...
متن کاملCa2+-citrate uptake and metabolism in Lactobacillus casei ATCC 334.
The putative citrate metabolic pathway in Lactobacillus casei ATCC 334 consists of the transporter CitH, a proton symporter of the citrate-divalent metal ion family of transporters CitMHS, citrate lyase, and the membrane-bound oxaloacetate decarboxylase complex OAD-ABDH. Resting cells of Lactobacillus casei ATCC 334 metabolized citrate in complex with Ca(2+) and not as free citrate or the Mg(2+...
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Various folate coenzymes and their polyglutamyl derivatives involved in 1-carbon metabolism are modulated as a result of altered physiological states and also vary with respect to growth conditions. We studied the metabolic changes in folic acid and their conjugated polyglutamyl derivatives in Lactobacillus casei cells grown in the presence of D20. A 40% decrease in methyltetrahydrofolyl polygl...
متن کاملProteolysis by Lactobacillus casei
A study of the proteinase activity of Lactobacillus casei grown in milk and of cell-free extract of L. cawi has been reported on in a previous paper (Brandsaeter and Nelson, 1956). Whereas the proteinases of L. casei have been studied to some extent earlier, very little has been done to characterize the peptidases of this organism. Other lactobacilli hydrolyze some peptides (Christophersen and ...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1979
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.140.3.949-954.1979