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. Author manuscript; available in PMC: 2021 Oct 1.
Published in final edited form as: Curr Opin Physiol. 2020 Sep 11;17:269–277. doi: 10.1016/j.cophys.2020.08.020

Fig.2.

Fig.2.

X-ray Structure of both (A) apo and (B) holo form of CaSR ECD with Cys-rich domain (PDB IDs 5K5T and 5K5S). Green spheres represent Ca2+.SO42− and PO43− are shown in yellow and magenta spheres respectively. L-Trp is indicated by orange sticks.