Publication Date:
2010-07-31
Description:
Protein and messenger RNA (mRNA) copy numbers vary from cell to cell in isogenic bacterial populations. However, these molecules often exist in low copy numbers and are difficult to detect in single cells. We carried out quantitative system-wide analyses of protein and mRNA expression in individual cells with single-molecule sensitivity using a newly constructed yellow fluorescent protein fusion library for Escherichia coli. We found that almost all protein number distributions can be described by the gamma distribution with two fitting parameters which, at low expression levels, have clear physical interpretations as the transcription rate and protein burst size. At high expression levels, the distributions are dominated by extrinsic noise. We found that a single cell's protein and mRNA copy numbers for any given gene are uncorrelated.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2922915/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2922915/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taniguchi, Yuichi -- Choi, Paul J -- Li, Gene-Wei -- Chen, Huiyi -- Babu, Mohan -- Hearn, Jeremy -- Emili, Andrew -- Xie, X Sunney -- DP1 OD000277/OD/NIH HHS/ -- DP1 OD000277-03/OD/NIH HHS/ -- DP1 OD000277-04/OD/NIH HHS/ -- DP1 OD000277-05/OD/NIH HHS/ -- MOP-77639/Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2010 Jul 30;329(5991):533-8. doi: 10.1126/science.1188308.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20671182" target="_blank"〉PubMed〈/a〉
Keywords:
Escherichia coli/chemistry/*genetics/metabolism
;
Escherichia coli Proteins/*analysis/metabolism
;
*Gene Expression
;
*Gene Expression Profiling
;
Gene Library
;
In Situ Hybridization, Fluorescence
;
Luminescent Proteins
;
Microfluidic Analytical Techniques
;
Microscopy, Fluorescence
;
Protein Biosynthesis
;
Proteome/*analysis
;
RNA Stability
;
RNA, Bacterial/analysis/genetics/metabolism
;
RNA, Messenger/*analysis/genetics
;
Saccharomyces cerevisiae/chemistry/genetics/metabolism
;
Transcription, Genetic
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
