Linked Life Data

18446803

Source:http://linkedlifedata.com/resource/pubmed/id/18446803

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2008-6-18
pubmed:abstractText
In this study, ampholyte-free liquid-phase IEF (LIEF) was combined with narrow pH range 2-DE and SDS-PAGE RP-HPLC for comprehensive analysis of mouse liver proteome. Because LIEF prefractionation was able to reduce the complexity of the sample and enhance the loading capacity of IEF strips, the number of visible protein spots on subsequent 2-DE gels was significantly increased. A total of 6271 protein spots were detected after integrating five narrow pH range 2-DE gels following LIEF prefractionation into a single virtual 2-DE gel. Furthermore, the pH 3-5 LIEF fraction and the unfractionated sample were separated by pH 3-6 2-DE and identified by MALDI-TOF/TOF MS, respectively. In parallel, the pH 3-5 LIEF fraction was also analyzed by SDS-PAGE RP-HPLC MS/MS. LIEF-2-DE and LIEF-HPLC could obviously improve the separation efficiency and the confidence of protein identification, which identified a higher number of low-abundance proteins and proteins with extreme physicochemical characteristics or post-translational modifications compared to conventional 2-DE method. Furthermore, there were 207 proteins newly identified in mouse liver in comparison with previously reported large-scale datasets. It was observed that the combination of LIEF-2-DE and LIEF-HPLC was effective in promoting MS-based liver proteome profiling and could be applied on similar complex tissue samples.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0173-0835
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2372-80
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Comprehensive proteome analysis of mouse liver by ampholyte-free liquid-phase isoelectric focusing.
pubmed:affiliation
Department of Chemistry, Fudan University, Shanghai, China.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't