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Two-dimensional gel-based alkaline proteome of the probiotic bacterium Lactobacillus acidophilus NCFM.

Authors
Type
Published Article
Journal
PROTEOMICS
1615-9861
Publisher
Wiley Blackwell (John Wiley & Sons)
Publication Date
Volume
12
Issue
7
Pages
1006–1014
Identifiers
DOI: 10.1002/pmic.201100455
PMID: 22522807
Source
Medline

Abstract

Lactobacillus acidophilus NCFM (NCFM) is a well-documented probiotic bacterium isolated from human gut. Detailed 2D gel-based NCFM proteomics addressed the so-called alkaline range, i.e., pH 6-11. Proteins were identified in 150 of the 202 spots picked from the Coomassie Brilliant Blue stained 2D gel using MALDI-TOF-MS. The 102 unique gene products among the 150 protein identifications were assigned to different functional categories, and evaluated by considering a calculated distribution of abundance as well as grand average of hydrophobicity values. None of the very few available lactic acid bacteria proteome reference maps included the range of pI >7.0. The present report of such data on the proteome of NCFM fundamentally complements current knowledge on protein profiles limited to the acid and neutral pH range.

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