Linked Life Data

20001701

Source:http://linkedlifedata.com/resource/pubmed/id/20001701

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-12-16
pubmed:abstractText
We observed a relation between gene activity and ultra-weak photon emission (UPE). By comparing the UPEs of E. coli with the LacI gene present and deleted we found that more gene activity produced higher UPE. This relation was further confirmed by studying the UPE of the E. coli with and without the Yhha gene. We interpreted that a higher aminoacyl t-RNA synthetase activity, which used ATP from the respiratory chain, could increase the emission. Satisfying the increased need of ATP by the E. coli through an increase of respiratory chain activity, which has reactive oxygen species (ROS) as a byproduct, results in a higher rate of photon emission. To ensure that oxygen is at the origin of this emission, we replaced the air by pure nitrogen. After 30 min, it was observed that the emission levels equaled the emission levels of the sterile medium. We could therefore conclude that the source of the photon emission would be affected by genetic activity and is oxygen related.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1536-8386
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
240-9
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Effects of Lac operon activation, deletion of the Yhha gene, and the removal of oxygen on the ultra-weak photon emission of Escherichia coli.
pubmed:affiliation
Biomedical Physics Laboratory, Department of Physics and Astronomy, Seoul National University, Seoul, Korea. F.laager@gmx.ch
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't