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Signal recognition particle receptor
. Water molecules are shown as red spheres.
.
Receptor for activated C kinase 1
Nuclear receptors
The
The .
(PDB entry 1dkf).
The Ligand binding domain for each piece of the dimer has a nearly identical structure of an . These alpha helices form a total of 12 domains per protein (referred to as H1-12), with an additional 2 beta sheets as well. Additionally, the α-helical sandwich formed has been shown to bind All-Trans Retinoic Acid (ATRA), the isomer of RA used by the body. Both monomers contain two regions of activity, the and the .[1]
Endoplasmic reticulum/Sarcoplasmic reticulum receptors
Ligand-gated Calcium channels
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