不同生长时期梅花鹿鹿茸差异蛋白质组学分析
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摘要
为了解梅花鹿鹿茸生长过程中蛋白质表达特征,从分子水平认识鹿茸生长机制,本研究以10d、40d、60d与130d的梅花鹿鹿茸为试验材料,运用双向凝胶电泳(2-DE)和MALDI-TOF/TOF质谱鉴定技术对梅花鹿鹿茸生长过程中差异表达蛋白质进行筛选,并结合生物信息学方法对差异表达蛋白质进行功能分析。结果显示有46种蛋白质差异性表达,且主要参与了细胞骨架、转运过程、信号转导、细胞凋亡、骨发育、蛋白质合成、核酸代谢、免疫、能量代谢、细胞增殖、抗氧化、蛋白质折叠等生物学过程。结合鹿茸的快速生长与快速骨化的独特生长过程,对差异表达蛋白质中的骨发育相关蛋白、抗氧化蛋白、细胞凋亡相关蛋白做进一步分析,发现P4HB、SPARC、过氧化物还原酶2、过氧化物还原酶4、半乳糖凝集素1、视黄酸结合蛋白1等6种蛋白质在鹿茸快速生长与快速骨化过程中起着重要的作用,为鹿茸生长与骨化机制的进一步研究奠定基础。
To investigate into the proteome profiling of the velvet antler and clarify velvet antler development mechanism in the level molecular biology,the sika deer velvet antlers aged10 d、40 d、60 d and 130 d were selected as experimental material.Two-dimensional gel electrophoresis(2- DE) was employed to separate and quantify proteins of the velvet antlers during their four days development,the differentially expressed proteins were identified by MALDI- TOF /TOF- MS,and the function of proteins were analyzed using bioinformatics methods.The result showed that 46 proteins were differentially expressed significantly,which were involved the biology process of cytoskeleton、transportation、signal transduction、apoptotic process、bone development、protein synthesis、nucleotide biosynthesis、immunity、energy metabolism、cell proliferation and antioxidant activity.We focused on the proteins involved in bone development、antioxidant activity and apoptotic process due to the special growth process with rapid growth and ossification,and found that P4HB、SPARC、peroxiredoxin 2、peroxiredoxin 4、galectin 1 and retinoic acid binding protein 1 may play vital role in velvet antler growth and ossification process.Taken together,the result provided a basis for further research on the molecular mechanisms involved in the accelerated growth and ossification of deer velvet antler.
引文
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