Linked Life Data

3319782

Source:http://linkedlifedata.com/resource/pubmed/id/3319782

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1988-2-10
pubmed:abstractText
The gene rpoB (rifD 18), which encodes rifampicin-resistant beta subunit of Escherichia coli RNA polymerase, has been placed on an overexpression plasmid under the control of bacteriophage T7 promoter. Induction of the T7 RNA polymerase gene in the host cells resulted in extensive overproduction of the beta polypeptide. Most of the overproduced material was recovered from cell lysates in insoluble form and was solubilized by extraction with 6 M urea. Purified overproduced beta subunit was added, in molar excess, to urea-denatured rifampicin-sensitive RNA polymerase. Upon removal of urea by dialysis, the reconstituted enzyme became rifampicin-resistant, indicating that overproduced beta subunit can be efficiently assembled into functional holoenzyme.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:volume
58
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Overexpression and purification of a biologically active rifampicin-resistant beta subunit of Escherichia coli RNA polymerase.
pubmed:affiliation
Department of Microbiology, College of Physicians and Surgeons of Columbia University, New York, NY 10032.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't