The farnesoid X receptor (FXR, a.k.a. NR1H4) is a nuclear receptor that responds to levels of bile acids present in the body and regulates many processes related to bile acids synthesis and transport. Proteins on this pathway have targeted assays available via the [CPTAC Assay Portal](https://assays.cancer.gov/available_assays?wp_id=WP2879). cc1 nuclear receptor subfamily 1, group H, member 4 fa4 T3 nuclear receptor subfamily 1, group H, member 4 fa4 retinoid X receptor, alpha nuclear receptor subfamily 1, group H, member 4 fa4 retinoid X receptor, alpha nuclear receptor subfamily 1, group H, member 4 fa4 retinoid X receptor, alpha UDP glucuronosyltransferase 2 family, polypeptide B4 sulfotransferase family, cytosolic, 2A, dehydroepiandrosterone (DHEA)-preferring, member 1 solute carrier family 27 (fatty acid transporter), member 5 solute carrier family 10 (sodium/bile acid cotransporter), member 1 cytochrome P450, family 7, subfamily A, polypeptide 1 cd6 nuclear receptor subfamily 0, group B, member 2 b6a fibroblast growth factor 19 bed insulin receptor substrate 2 ATP-binding cassette, sub-family B (MDR/TAP), member 11 bile acid CoA:amino acid N-acyltransferase cytochrome P450, family 3, subfamily A, polypeptide 4 cd6 FK506 binding protein 5 inositol hexakisphosphate kinase 3 ATP-binding cassette, sub-family B (MDR/TAP), member 4 nuclear receptor subfamily 0, group B, member 2 peroxisome proliferator-activated receptor gamma, coactivator 1 alpha b6a solute carrier organic anion transporter family, member 2B1 cytochrome P450, family 8, subfamily B, polypeptide 1 db8 db8 db8 db8 19471584 PubMed Dynamic and combinatorial control of gene expression by nuclear retinoic acid receptors (RARs). 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