학술논문

Architecture of the outbred brown fat proteome defines regulators of metabolic physiology
Document Type
article
Source
Cell. 185(24)
Subject
Biochemistry and Cell Biology
Biological Sciences
Genetics
Nutrition
Obesity
2.1 Biological and endogenous factors
1.1 Normal biological development and functioning
Underpinning research
Aetiology
Humans
Mice
Animals
Adipose Tissue
Brown
Proteome
Thermogenesis
Adiposity
Mice
Inbred C57BL
Proto-Oncogene Proteins
Medical and Health Sciences
Developmental Biology
Biological sciences
Biomedical and clinical sciences
Language
Abstract
Brown adipose tissue (BAT) regulates metabolic physiology. However, nearly all mechanistic studies of BAT protein function occur in a single inbred mouse strain, which has limited the understanding of generalizable mechanisms of BAT regulation over physiology. Here, we perform deep quantitative proteomics of BAT across a cohort of 163 genetically defined diversity outbred mice, a model that parallels the genetic and phenotypic variation found in humans. We leverage this diversity to define the functional architecture of the outbred BAT proteome, comprising 10,479 proteins. We assign co-operative functions to 2,578 proteins, enabling systematic discovery of regulators of BAT. We also identify 638 proteins that correlate with protection from, or sensitivity to, at least one parameter of metabolic disease. We use these findings to uncover SFXN5, LETMD1, and ATP1A2 as modulators of BAT thermogenesis or adiposity, and provide OPABAT as a resource for understanding the conserved mechanisms of BAT regulation over metabolic physiology.