Article (Scientific journals)
Comparative effects of phosphorylation and acetylation on glycolysis and myofibrillar proteins degradation in postmortem muscle.
Ren, Chi; Chen, Li; Bai, Yuqiang et al.
2024In International Journal of Biological Macromolecules, 257 (Pt 2), p. 128567
Peer Reviewed verified by ORBi
 

Files


Full Text
1-s2.0-S0141813023054661-main.pdf
Author postprint (1.85 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Glycolysis; Meat; Protein acetylation; Protein degradation; Protein phosphorylation; Desmin; Animals; Sheep; Proteolysis; Phosphorylation; Acetylation; Desmin/analysis; Desmin/metabolism; Meat/analysis; Muscle, Skeletal/metabolism
Abstract :
[en] The study investigated the different effects between protein phosphorylation and acetylation on glycolytic enzyme activity and myofibrillar protein degradation. Lamb longissimus thoracis lumborum muscles were homogenized and then inhibitors were added for incubation at 4 °C. Phosphatase inhibitor was added to produce a high phosphorylation level (PI group) and lysine deacetylase inhibitor was added to produce a high acetylation level (DI group). The lactate and ATP content in the PI group was inhibited compared with that in the DI group (P < 0.05). Phosphofructokinase (PFK) activity was negatively related with the phosphorylation level and was positively related with the acetylation level in the DI group (P < 0.05). The degradation of troponin T and desmin of the DI group were restrained when compared to that in the PI group (P < 0.05). Compared with initial PFK and desmin, the simulation of phosphorylation and acetylation of PFK and desmin showed different electrostatic potential at the surface and a more unstable structure. The phosphorylation level of the DI group was increased, suggesting that the changes of protein acetylation altered protein phosphorylation. In conclusion, compared with protein phosphorylation, protein acetylation had a greater effect on promoting glycolysis and inhibiting protein degradation.
Disciplines :
Agriculture & agronomy
Author, co-author :
Ren, Chi ;  Université de Liège - ULiège > TERRA Research Centre
Chen, Li;  Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
Bai, Yuqiang;  Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
Hou, Chengli;  Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
Li, Xin ;  Université de Liège - ULiège > TERRA Research Centre ; Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China. Electronic address: xinli.caas@gmail.com
Schroyen, Martine  ;  Université de Liège - ULiège > Département GxABT > Animal Sciences (AS)
Zhang, Dequan;  Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality & Safety in Harvest, Storage, Transportation, Management and Control, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
Language :
English
Title :
Comparative effects of phosphorylation and acetylation on glycolysis and myofibrillar proteins degradation in postmortem muscle.
Publication date :
February 2024
Journal title :
International Journal of Biological Macromolecules
ISSN :
0141-8130
eISSN :
1879-0003
Publisher :
Elsevier, Nl
Volume :
257
Issue :
Pt 2
Pages :
128567
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 April 2024

Statistics


Number of views
2 (0 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
0
Scopus citations®
without self-citations
0

Bibliography


Similar publications



Contact ORBi