›› 2012, Vol. 39 ›› Issue (1): 132-136.

• 遗传繁育 • 上一篇    下一篇

利用MALDI-TOF质谱比较水牛卵泡液多肽变化的研究

付强, 刘振方, 杨丽, 张明, 卢克焕   

  1. 广西大学动物繁殖研究所,亚热带农业生物资源保护与利用国家重点实验室,广西南宁 530004
  • 收稿日期:2011-06-01 修回日期:1900-01-01 出版日期:2012-01-20 发布日期:2012-01-20
  • 通讯作者: 张明

Comparison of Peptides Expression in Buffalo Follicular Fluid with MALDI-TOF Mass Spectrometry

FU Qiang, LIU Zhen-fang, YANG Li, ZHANG Ming, LU Ke-huan   

  1. State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources; Animal Reproduction Institute, Guangxi University, Nanning 530004, China
  • Received:2011-06-01 Revised:1900-01-01 Online:2012-01-20 Published:2012-01-20

摘要: 为检测卵泡内小肽的表达,采用基质辅助激光解离串联飞行时间质谱(MALDI-TOF/TOF MS)建立了成熟卵泡液的多肽表达模型,比较小卵泡(直径<4 mm)、中等卵泡(直径4~8 mm)和成熟卵泡(直径>8 mm)的多肽表达变化。结果表明,3种形态的卵泡液存在12个显著差异多肽,其中在成熟卵泡内上调6个,下调有5个;在中等卵泡内上调4个,下调5个。其中分子质量约为1746 u的多肽在成熟卵泡中特异性表达,可作为卵泡成熟的潜在生物标志物之一。

关键词: 水牛; 卵泡液; MALDI-TOF; 多肽; 特异性表达

Abstract: In order to detect the peptides expression profile in follicles, the matrix-assisted laser desorption ionization mass spectrometry was used to establish a model of peptide expression profile and compare expression changes of peptides from small follicles ((? <4 mm), medium follicules (4 to 8 mm) and mature follicles (? >8 mm). The results indicated that there were 12 peptides to express significantly different among three shapes of follicles. 6 peptides increased and 5 peptides decreased in mature follicles. The 1746 u of peptide expressed specifically in mature follicles, which might be used as the one of the underlying biomarkers for follicles maturation.

Key words: buffalo; follicular fluid; MALDI-TOF; peptide; specific expression

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