Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
29
|
pubmed:dateCreated |
1988-11-10
|
pubmed:abstractText |
TDP-D-glucose 4,6-dehydratase was purified from Saccharopolyspora erythraea, the producer of the macrolide antibiotic erythromycin A, by a high resolution chromatographic method that exploited the difference in the behavior of the protein on anionic exchange chromatography in Tris/HCl or phosphate buffers. By this method, the enzyme was purified approximately 900-fold by two anionic exchange steps to more than 90% homogeneity. It was further purified to apparent homogeneity by hydrophobic interaction chromatography. The enzyme is a homodimer of Mr 36,000 subunits, is highly specific for TDP-D-glucose, requires NAD+ as cofactor, and shows a K'm of 34 microM and V'max of 26 mumol h-1 mg-1 of protein for TDP-D-glucose. TDP and TTP strongly inhibit the enzyme at 2 mM. The maximal TDP-D-glucose 4,6-dehydratase activity coincides with the time of erythromycin production, suggesting that this enzyme is involved in antibiotic biosynthesis.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Oct
|
pubmed:issn |
0021-9258
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
263
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
14992-5
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:3170573-Chromatography, Gel,
pubmed-meshheading:3170573-Chromatography, High Pressure Liquid,
pubmed-meshheading:3170573-Chromatography, Ion Exchange,
pubmed-meshheading:3170573-Erythromycin,
pubmed-meshheading:3170573-Hydro-Lyases,
pubmed-meshheading:3170573-Kinetics,
pubmed-meshheading:3170573-Streptomyces
|
pubmed:year |
1988
|
pubmed:articleTitle |
Purification of thymidine-diphospho-D-glucose 4,6-dehydratase from an erythromycin-producing strain of Saccharopolyspora erythraea by high resolution liquid chromatography.
|
pubmed:affiliation |
School of Pharmacy, University of Wisconsin, Madison 53706.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
|