Molecular and biochemical characterization of two xylanase-encoding genes from Cellulomonas pachnodae
Article Abstract:
Two xylanase-encoding genes, designated xyn11A and xyn10B, from the (hemi)cellulolytic bacterium Cellulomonas pachnodae were isolated and the deduced amino acid sequences were compared with other xylanases. Xyn11A was found to consist of 335 amino acids with a calculated molecular mass of 34,383 Da. Results indicate that although both Xyn11A and Xyn10B had the highest homology to xylanases from C fimi, distinct differences in the molecular organizations of the xylanases could be identified.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
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Transcription of the pcbAB, pcbC and penDE genes of Penicillium chrysogenum AS-P-78 is repressed by glucose and the repression is not reversed by alkaline pHs
Article Abstract:
A study was conducted to analyze the depression of the transcription of the pcbAB, pcbC and penDE genes of Penicillium chrysogenum AS-P-78 by glucose. It was shown that increases in extracellular pH did not reverse carbon catabolite regulation. Results indicated that glucose repression of the genes encoding enzymes of penicillin biosynthesis is influenced by a regulatory mechanism not dependent from pH regulation.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1999
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Reclassification of the Penicillium roqueforti group into three species on the basis of molecular genetic and biochemical profiles
Article Abstract:
Previous research has divided Penicillium roqueforti into two varieties, P. roqueforti var. roqueforti, which is used for cheese starter cultures, and P. roqueforti var. carneum, which produces patulin. However, a sequence analysis of Penicillium isolates shows the existence of another variety of P. roqueforti, P. paneum. Random Amplified Polymorphic DNA fingerprinting confirms the existence of the variety.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1996
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