PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17082363-4 2007 The AMP-activated protein kinase, hypoxia-inducible factor 1, peroxisome proliferator-activated receptors, and Sirt1 proteins all contribute to altering skeletal muscle gene expression by sensing changes in the concentrations of AMP, molecular oxygen, intracellular free fatty acids, and NAD+, respectively. Fatty Acids, Nonesterified 266-282 sirtuin 1 Homo sapiens 111-116