A proteomic analysis of secreted proteins from xylan-induced Bacillus sp. strain K-1

Pei Wen Chu, Mee Ngan Yap, Chi Yue Wu, Chun Ming Huang, Fu Ming Pan, Min Jen Tseng, Shui Tein Chen*

*Corresponding author for this work

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

The expression level of extracellular proteins in an alkaliphilic bacterium, Bacillus sp. strain K-1, grown in a xylan-containing medium, is significantly increased when compared with that grown in the nonxylan culture medium. A proteomic approach has been efficiently applied to separate and characterize these differentially expressed secretory proteins. Eight prominent protein spots were identified and subjected to N-terminal amino acid sequencing. The results show that three spots share considerable similarity with the xylanolytic enzymes and that two spots share considerable similarity with the GltC regulatory protein and 3-dehydroquinate dehydratase, respectively. In addition, the three other proteins show little similarity with the known proteins in the database. In conclusion, our results demonstrate that the proteomic approach is a highly efficient method to rapidly study the differential expression of the secreted proteins by Bacillus sp. strain K-1 grown under xylan-induced condition.

Original languageEnglish (US)
Pages (from-to)1740-1745
Number of pages6
JournalELECTROPHORESIS
Volume21
Issue number9
DOIs
StatePublished - Jul 3 2000

Keywords

  • Bacillus sp.
  • Proteomics
  • Two-dimensional polyacrylamide gel electrophoresis
  • Xylan

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Clinical Biochemistry

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