Figure 4
From: Structure and function analyses of the purified GPCR human vomeronasal type 1 receptor 1

Circular dichroism spectra of purified hVN1R1.
(a) Far UV trace showing a curve characteristic of an alpha-helix. This shape is expected, as hVN1R1 is a GPCR with seven predicted transmembrane helices. (b) Near UV trace. The peaks indicate that the protein has a well-defined tertiary structure.