Mitochondrial uncoupling proteins in energy expenditure

LP Kozak, ME Harper - Annual review of nutrition, 2000 - annualreviews.org
LP Kozak, ME Harper
Annual review of nutrition, 2000annualreviews.org
Four recently discovered homologues of the brown adipose tissue–specific mitochondrial
uncoupling protein (UCP1) vary from 29% to 58% in their similarity to UCP1. Although these
homologues share important structural features with UCP1 and like UCP1 can reduce the
mitochondrial membrane potential when expressed in yeast, there is no clear evidence that
they can function thermogenically in vivo. On the other hand, evidence continues to
accumulate indicating that the up-regulation of Ucp1 reduces excessive adiposity.
Four recently discovered homologues of the brown adipose tissue–specific mitochondrial uncoupling protein (UCP1) vary from 29% to 58% in their similarity to UCP1. Although these homologues share important structural features with UCP1 and like UCP1 can reduce the mitochondrial membrane potential when expressed in yeast, there is no clear evidence that they can function thermogenically in vivo. On the other hand, evidence continues to accumulate indicating that the up-regulation of Ucp1 reduces excessive adiposity.
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