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. 1997 May 12;408(1):39-42.
doi: 10.1016/s0014-5793(97)00384-0.

Uncoupling protein-3: a new member of the mitochondrial carrier family with tissue-specific expression

O Boss  1 , S Samec, A Paoloni-Giacobino, C Rossier, A Dulloo, J Seydoux, P Muzzin, J P Giacobino
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Free article

Uncoupling protein-3: a new member of the mitochondrial carrier family with tissue-specific expression

O Boss et al. FEBS Lett. .
Free article

Abstract

Brown adipose tissue (BAT) and skeletal muscle are important sites of nonshivering thermogenesis. The uncoupling protein-1 (UCP1) is the main effector of nonshivering thermogenesis in BAT and the recently described ubiquitous UCP2 [1] has been implicated in energy balance. In an attempt to better understand the biochemical events underlying nonshivering thermogenesis in muscle, we screened a human skeletal muscle cDNA library and isolated three clones: UCP2, UCP3L and UCP3S. The novel UCP3 was 57% and 73% identical to human UCP1 and UCP2, respectively, highly skeletal muscle-specific and its expression was unaffected by cold acclimation. This new member of the UCP family is a candidate protein for the modulation of the respiratory control in skeletal muscle.

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