Fig. 1
From: Estrogen-related receptors: novel potential regulators of osteoarthritis pathogenesis
Structure of estrogen receptor α and the three estrogen-related receptors. ERRs are composed of six conserved regions (A/B, C, D, and E/F domains), and the colors symbolize the diverse functions of these domains. The number between the two receptors represents the sequence identity of the same domain in the different receptors