期刊
MEAT SCIENCE
卷 121, 期 -, 页码 409-419出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2016.07.010
关键词
Proteomics; Yak muscle; Water-holding capacity; Two-dimensional gel electrophoresis; Bioinformatics
资金
- program for National Natural Science Foundation of China [31460402]
- Special Fund for Agro-scientific Research in the Public Interest [201203009]
- Science and Technology Major Project of Gansu Province [143NKDP020]
- National Beef Cattle Industrial Technology System from Ministry of Agriculture of the People's Republic of China [CARS-38]
To study differentially expressed proteins on water-holding capacity (WHC) during postmortem aging of longissimus lumborum muscle, samples were classified according to drip loss into high and low drip loss groups. Fifty-five proteins were differentially abundant at days 0, 1 and 7 during postmortem aging and identified by MALDI TOF/FOF. The identified proteins can be divided into four main categories: metabolic enzymes, cell structural proteins, stress related proteins and transport proteins. Myosin light chain, heat shock protein 27 and triosephosphate isomerase showed a major difference between the two groups and may have the potential to be biological markers for WHC prediction. Furthermore, bioinformatics analysis revealed that the identified proteins were related to carbon metabolism, glycolysis and biosynthesis of amino acids and pyruvate metabolism. The functions of the identified proteins contribute to a more detailed molecular view of the processes behind WHC and are a valuable resource for future investigations. (C) 2016 Elsevier Ltd. All rights reserved.
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