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A majority of S1P in circulation is associated with HDL, and HDL-S1P activates the G-coupled S1P receptors (S1P 1-5 ) on the surface of many vascular cell types, including macrophages, endothelial cells, and smooth muscle cells

A Randomized Controlled Trial of Changes in Fluid Distribution across Menstrual Phases with Creatine Supplementation

Some members of the family bind to DNA as homodimers such as is the case for subfamily III receptors which comprises the steroid receptors such as the estrogen receptor (ER), mineralocorticoid receptor (MR), progesterone receptor (PR), androgen receptor (AR), and the glucocorticoid receptor (GR)

[PubMed] [Google Scholar] 73.Saneto RP, Cohen BH, Copeland WC, Naviaux RK