Ascaris lumbricoides and Ascaris suum: Comparative proteomic studies using 2-DE coupled with mass spectrometry
文献类型: 外文期刊
第一作者: Xu, Min-Jun
作者: Xu, Min-Jun;Fu, Jing-Hua;Zhou, Dong-Hui;Song, Hui-Qun;Zhu, Xing-Quan;Fu, Jing-Hua;Elsheikha, Hany M.;Hu, Min;Lin, Rui-Qing;Peng, Li-Fei;Zhu, Xing-Quan
作者机构:
关键词: Ascaris lumbricoides;Ascaris suum;MALDI-TOF/TOF;Proteome;Two-dimensional polyacrylamide gel electrophoresis (2-DE)
期刊名称:INTERNATIONAL JOURNAL OF MASS SPECTROMETRY ( 影响因子:1.986; 五年影响因子:1.799 )
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收录情况: SCI
摘要: Roundworms of the genus Ascaris comprise species of medical (A. lumbricoides) and veterinary (A. suum) importance. Despite the economic importance, public health impact, and worldwide prevalence both parasites still have a controversial taxonomy and their proteomes are poorly described in databases. In the present study, high-resolution two-dimensional polyacrylamide gel electrophoresis (2-DE) coupled with MALDI-TOF/TOF MS was used to characterize and contrast proteomic profiles of adult female A. lumbricoides and A. suum. Approximately, 3-fold higher protein spots were obtained in the present study compared to traditional method, and more than 630 and 750 protein spots were reproducibly detected among the 6 gels examined (3 gels for each of A. lumbricoides and A. suum). The peptide mass finger printings (PMFs) were acquired successfully for 17 from 22 differential 2-DE spots, corresponding to 12 unique proteins. Among them, 2 Asu-enriched and 3 Alu-specific proteins were found in A. lumbricoides; and 6 Asu-enriched and 1 Alu-specific proteins were found in A. suum. Functional analysis revealed low level of difference among differentially expressed proteins of the two nematode species, while the 1 species-specific protein of A. suum was different from that of A. lumbricoides. The proteomic patterns of A. lumbricoides and A. suum provide proteomic evidence that these two taxa are very closely related. This work indicates that the combined 2-DE and MALDI-TOF/TOF MS approaches employed in the current study allow the identification of proteins whose expression is different between Ascaris species.
分类号: O657.3
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