Ontology highlight
ABSTRACT:
SUBMITTER: Tinklepaugh J
PROVIDER: S-EPMC5664142 | biostudies-literature | 2017 Oct
REPOSITORIES: biostudies-literature
Tinklepaugh Jay J Smith Britannia M BM Hanlon Etta E Zubieta Chloe C Bou-Abdallah Fadi F Doyle Robert P RP
ACS omega 20171026 10
Saposin B (SapB) is a human lysosomal protein, critical for the degradation of <i>O</i>-sulfogalactosylceramide (sulfatide). SapB binds sulfatide and presents it to the active site of the enzyme arylsulfatase A. Deficiency of SapB leads to fatal activator-deficient metachromatic leukodystrophy. Given the conformational flexibility and the large hydrophobic "pocket" produced upon (physiologically relevant) homodimerization, SapB may have broader substrate diversity than originally thought. Herein ...[more]