Ψ UCP1 - Bradypus variegatus

Reference Gene:
Job_ID:
Curator:
GlossID Species Gene Loss Mechanism Loss Type Lineage Specific Evidence Accession Nr.
GL_0VIIUZ Bradypus variegatus LOF (frameshift, premature stop, ss) Full Yes Genomic

Statements

Type Excerpt DOI
Functional "Adaptive nonshivering thermogenesis (NST) of placental mammals is predominantly mediated by uncoupling protein 1 (UCP1), which resides at high levels in the mitochondrial inner membrane of brown adipose tissue (BAT) (1)." 10.1126/sciadv.1602878
Timing of Loss "The earliest disruptions of ucp1 function (likely Cretaceous; Fig. 3and table S3) occur in the ancestors of xenarthrans and pangolins,two groups that exhibit marked convergence in many ecological,morphological, and physiological traits and which are generallycharacterized by mediocre temperature-regulating mechanismsand low, labile body temperatures (29–32)" 10.1126/sciadv.1602878

Curator Observations

Loss of exons 1,2,3,4 and 5 in all Xenarthra