Narcolepsy 2, Susceptibility To
For a phenotypic description and a discussion of genetic heterogeneity of narcolepsy, see 161400.
MappingIn a genomewide linkage search for narcolepsy in 8 Japanese families with 21 DR2-positive patients (14 narcoleptic cases with cataplexy and 7 with an incomplete form of narcolepsy), Nakayama et al. (2000) found a lod score of 3.09 at marker D4S2987 in the 4p13-q21 region.