An uncoupling protein homologue putatively involved in facultative muscle thermogenesis in birds

被引:169
作者
Raimbault, S
Dridi, S
Denjean, F
Lachuer, J
Couplan, E
Bouillaud, F
Bordas, A
Duchamp, C
Taouis, M
Ricquier, D
机构
[1] CNRS, Ctr Rech Endocrinol Mol & Dev, F-92190 Meudon, France
[2] INRA, Rech Avicoles Stn, F-37380 Nouzilly, France
[3] CNRS, Lab Physiol Regulat Energet Cellulaires & Mol, F-69622 Villeurbanne, France
[4] INRA, Unite Genet Factorielle, F-78352 Jouy En Josas, France
关键词
bioenergetics; mitochondria; mitochondrial carrier; skeletal muscle;
D O I
10.1042/0264-6021:3530441
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The cDNA of an uncoupling protein (UCP) homologue was obtained by screening a chicken skeletal-muscle library. The predicted 307-amino-acid sequence of avian UCP (avUCP) is 55, 70, 70 and 46% identical with mammalian UCP1, UCP2, and UCP3 and plant UCP respectively. avUCP mRNA expression is restricted to skeletal muscle and its abundance was increased 1.3-fold in a chicken line showing diet-induced thermogenesis, and 3.6- and 2.6-fold in cold-acclimated and glucagon-treated ducklings developing muscle non-shivering thermogenesis respectively. The present data support the implication of avUCP in avian energy expenditure.
引用
收藏
页码:441 / 444
页数:4
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