Concepedia

Publication | Closed Access

Human muscle acetylcholine receptor: cloning and expression in <i>Escherichia coli</i> of cDNA for the α-subunit

22

Citations

0

References

1989

Year

Abstract

The nicotinic acetylcholine receptor (AChR) of fetal striated muscle is an integral membrane protein consisting of five subunits arranged in stoichiometry a z , p, y, 6. In mature muscle, the y-subunit is replaced by the E . The AChR is the target for autoimmune attack in myasthenia gravis, with the a-subunit containing the main immunogenic region in this response (Tzartos el a[., 1982). Detailed study of the epitopes involved in the disease has been restricted by the low level of AChR ( < 2 pmol/g) found in human muscle.