def: Concentration or activity of alpha-N-acetylglucosaminidase (EC 3.2.1.50) below the lower limit of normal. This enzyme can be measured in multiple tissues including leukocytes and cultured fibroblasts. It is also known as alpha-acetylglucosaminidase, N-acetyl-alpha-D-glucosaminidase, N-acetyl-alpha-glucosaminidase, and alpha-D-2-acetamido-2-deoxyglucosidase.
comment: Pathogenic variants in the gene encoding N-alpha-acetylglucosaminidase (NAGLU) cause Sanfilippo syndrome B (mucopolysaccharidosis type IIIB).
New term request alpha-N-acetylglucosaminidase low in leukocytes or cultured fibroblasts (f382): N-acetyl-alpha-D-glucosaminidase