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Analysis of outer membrane proteins in various strains of Porphyromonas gingivalis by surface enhanced laser desorption/ionization time-of-flight mass spectrometry / 中华口腔医学杂志
Chinese Journal of Stomatology ; (12): 614-618, 2010.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-243115
Responsible library: WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To analyze the common outer membrane proteins (OMP) from Porphyromonas gingivalis (Pg) by surface enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF-MS) and to provide antigens for the subsequent experiments in screening vaccine for periodontitis therapy.</p><p><b>METHODS</b>Four strains of Pg were cultured under anaerobic conditions. The common OMP was extracted through ultracentrifugation and SELDI-TOF-MS was employed to detect the expressions of proteomes by chip H(50). The data was analyzed by Biomarker Wizard.</p><p><b>RESULTS</b>Four kinds of strains of OMP fingerprint spectrum were obtained. Seventy-one proteins of PgATCC33277, 74 proteins of PgW83, 76 proteins of PgW301 and 72 proteins of Pg381 were captured by chip H(50). Thirteen common proteins were identified according to fingerprint spectrum. There was only 1 of the 13 common proteins identified in NCBI protein bank.</p><p><b>CONCLUSIONS</b>SELDI-TOF-MS has good reproducibility and high sensibility and can be used to identify the common OMP of Pg. The 13 proteins have a potential value in the screening vaccine candidate antigen sites for periodontitis.</p>
Subject(s)
Full text: Available Database: WPRIM (Western Pacific) Main subject: Proteins / Chemistry / Reproducibility of Results / Porphyromonas gingivalis / Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Proteome / Allergy and Immunology / Membrane Proteins / Antigens, Bacterial Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Stomatology Year: 2010 Document type: Article
Full text: Available Database: WPRIM (Western Pacific) Main subject: Proteins / Chemistry / Reproducibility of Results / Porphyromonas gingivalis / Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Proteome / Allergy and Immunology / Membrane Proteins / Antigens, Bacterial Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Stomatology Year: 2010 Document type: Article
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