Signaling domain of the aspartate receptor is a helical hairpin with a localized kinase docking surface: cysteine and disulfide scanning studies.
Bass RB, Coleman MD, Falke JJ, Biochemistry, 1999 Jul 20 - link

Detection of a conserved alpha-helix in the kinase-docking region of the aspartate receptor by cysteine and disulfide scanning.
Bass RB, Falke JJ, J Biol Chem, 1998 Sep 25 - link