Description_x000D_ General description_x000D_ RyR1 (ryanodine receptor isoform 1) is a homotetrameric intracellular calcium channel, that is present in skeletal muscle tissue. It is located on human chromosome 19q13.1. In rats, RyR1 and RyR2 are expressed in PASMCs (pulmonary artery smooth muscle cells)._x000D_ Specificity_x000D_ The antibody reacts strongly with RyR-2 (expressed predominantly in the heart muscle, but also found in stomach, endothelial cells and diffuse areas of the brain; also known as the β isoform), and weakly with RyR-1 (expressed predominantly in skeletal muscle and areas of the brain; also known as the α isoform). It reacts with ryanodine receptor in cardiac muscle of canine, rat, finch and pigeon; in visceral smooth muscle of toad; and in rat brain. It reacts with skeletal muscle of fish and the β isoform of frog, but only weakly with skeletal muscle in rabbit and the α isoform of frog. In immunohistochemistry, the antibody stains are consistent with the endoplasmic reticulum localization of the receptor in the hippocampus._x000D_ Immunogen_x000D_ dog cardiac ryanodine receptors (RyR)_x000D_ Application_x000D_ Anti-Ryanodine Receptor has been used in immunofluorescence assay._x000D_ Physical form_x000D_ Containing PBS and 0.05% sodium azide_x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ In rats PASMCs (pulmonary artery smooth muscle cells), RyR2 (ryanodine receptor isoform 1) participates in RyR-gated Ca2+ entry. It controls the secretion of insulin and glucose homeostasis. After hemorrhagic shock, RyR2 involves in the progress of vascular bi-phasic reactivity to NE (norepinephrine). In human, RyR1 plays an important role in muscle contraction. RYR1 mutation causes CCD (central core disease) and MHS (malignant hyperthermia susceptibility).