The low-density lipoprotein receptor (LDLr) plays a pivotal role in ch
olesterol homeostasis, Mutations in the LDLr gene (LDLR), which is loc
ated on chromosome 19, cause familial hypercholesterolemia (FH), an au
tosomal dominant disorder characterized by severe hypercholesterolemia
associated with premature coronary atherosclerosis. To date almost 30
0 mutations have been identified in the LDLR gene, To facilitate the m
utational analysis of the LDLR gene, and promote the analysis of the r
elationship between genotype and phenotype, a software package along w
ith a computerized database (currently listing 210 entries) have been
created.