Alternative titles and symbols : Delta storage pool disease; Albinism with hemorrhagic diathesis and pigmented reticuloendothelial cells;
Description : Hermansky-Pudlak syndrome (HPS) is a rare autosomal recessive disorder in which oculocutaneous
albinism, bleeding, and lysosomal ceroid storage result from defects of multiple cytoplasmic
organelles: melanosomes, platelet-dense granules, and lysosomes (Oh et al., 1998).
- Genetic Heterogeneity of Hermansky-Pudlak Syndrome Hermansky-Pudlak syndrome can
also be caused by homozygous or compound heterozygous mutations in several other genes.
HPS2 (608233), which includes immunodeficiency in its phenotype, is caused by mutation
in the AP3B1 gene (603401) on chromosome 5q14.1. HPS3 (614072) is caused by mutation
in a gene on chromosome 3q24 (606118); HPS4 (614073) is caused by mutation in a gene
on chromosome 22q11.2-q12 (606682); HPS5 (614074) is caused by mutation in a gene
on chromosome 11p14 (607521); HPS6 (614075) is caused by mutation in a gene on chromosome
10q24 (607522); HPS7 (614076) is caused by mutation in the DTNBP1 gene (607145) on
chromosome 6p22; HPS8 (614077) is caused by mutation in the BLOC1S3 gene (609762)
on chromosome 19q13.32; and HPS9 (614171) is caused by mutation in the PLDN gene (604310)
on chromosome 15q21.1.;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the HPS1 biogenesis of lysosomal organelles complex 3 subunit
1 gene (HPS1, 203300);