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논문 기본 정보

자료유형
학술저널
저자정보
Jeong-Won Park (경상대학교) Seung-Gyu Lee (경상대학교) Jae-Young Song (경상대학교) Jin-Su Jun (경상대학교) Jung-Soo Joo (경상대학교) Hee-Shang Youn (경상대학교) Ji-Hyun Seo (경상대학교) Hyung-Lyun Kang (경상대학교) Seung-Chul Baik (경상대학교) Woo-Kon Lee (경상대학교) Myung-Je Cho (경상대학교) Kwang-Ho Rhee (경상대학교)
저널정보
대한바이러스학회 JOURNAL OF BACTERIOLOGY AND VIROLOGY Journal of Bacteriology and Virology 제37권 제4호
발행연도
2007.12
수록면
203 - 212 (10page)

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It has been reported that most of Helicobacter pylori proteome components appear so crowded in the region of pH 4.5~8.0 that a lot of them were inseparable in 2-DE using the broad range IPG strip. Therefore, inseparable protein spots in 2-DE profiles have to be apart from each other for improving the protein identification. Here, we attempt to examine the usability of the narrow range IPG strips for separating close spots in the broad range IPG strip at proteomic analysis of H. pylori. The whole cell proteins of H. pylori strain 26695 were separated by narrow range IPG strips (pI 3.9~5.1, 4.7~5.9, 5.5~6.7, and 6.3~8.3, respectively), followed by SDS-PAGE, and visualized by silver staining, showing that the distances between spots were widened and the total number of detectable spots was increased. Resolved protein spots were identified by the peptide fingerprinting using MALDI-TOF-MS. As a result, 87 expressed proteins were identified by the peptide fingerprinting. Of them, 23 proteins, including hydrogenase expression/formation protein, purine-binding chemotaxis protein, and ribosomal protein S6, have not been reported in the previous proteome studies of H. pylori. Thus, these results demonstrate that the high complexity proteome components could be effectively separated using the narrow range IPG strips, which might be helpful to strengthen the contents of the master protein map of the H. pylori reference strain.

목차

INTRODUCTION
MATRIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES

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