fulltext.study @t Gmail

Evidence, through C13-labelling analysis, of phosphoketolase activity in fungi

Paper ID Volume ID Publish Year Pages File Format Full-Text
35858 45111 2007 6 PDF Available
Title
Evidence, through C13-labelling analysis, of phosphoketolase activity in fungi
Abstract

Phosphoketolase is a well characterised enzyme in Bifidobacterium species. However, limited information about this enzyme is available in higher organisms. Physiological characterisation of the filamentous fungus Penicillium chrysogenum, using 13C-labelling analysis, revealed that an unrecognised pathway was involved in formation of cytosolic acetyl-CoA. Comparison of the labelling pattern of pyruvate and acetyl-CoA showed that the 13C-content of pyruvate was higher than the corresponding labelling of acetyl-CoA, indicating that a less labelled source was contributing to the acetyl-CoA pool. Examination of previously published 13C data from Aspergillus nidulans showed the same trend. It was speculated that phosphoketolase activity could be contributing to the formation of acetyl-CoA in these fungi. Since the traditional methods for measuring phosphoketolase activity are tedious, two new enzyme assays were developed and used for identification of phosphoketolase activity. Furthermore, using genomic sequencing information, targets for creating an entire pathway from xylulose 5-phosphate to acetate was identified in A. nidulans.

Keywords
Phosphoketolase; C13-labelling analysis; Fungi; Metabolic engineering; Metabolic network analysis; Enzyme assay
First Page Preview
Evidence, through C13-labelling analysis, of phosphoketolase activity in fungi
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 42, Issue 7, July 2007, Pages 1050–1055
Authors
, ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us