The "helpful feature" associated with this specific location in the receptor is its role in —essentially acting as a molecular "on/off" switch for genes.
(often stylized with a trailing 'R' or 'rar' in search terms) is a popular . N(383)rar
: The switch does not lock in forward or reverse, allowing you to spin it quickly like a thumb screw to tighten loose fasteners. The "helpful feature" associated with this specific location
: In certain medical conditions like Resistance to Thyroid Hormone (RTH) syndrome, a mutation at this specific spot (R383) impairs the receptor's ability to release "corepressors". N(383)rar