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Official Full Name
hexosaminidase A (alpha polypeptide)
This gene encodes the alpha subunit of the lysosomal enzyme beta-hexosaminidase that, together with the cofactor GM2 activator protein, catalyzes the degradation of the ganglioside GM2, and other molecules containing terminal N-acetyl hexosamines. Beta-hexosaminidase is composed of two subunits, alpha and beta, which are encoded by separate genes. Both beta-hexosaminidase alpha and beta subunits are members of family 20 of glycosyl hydrolases. Mutations in the alpha or beta subunit genes lead to an accumulation of GM2 ganglioside in neurons and neurodegenerative disorders termed the GM2 gangliosidoses. Alpha subunit gene mutations lead to Tay-Sachs disease (GM2-gangliosidosis type I).
HEXA; hexosaminidase A (alpha polypeptide); beta-hexosaminidase subunit alpha; GM2 gangliosidosis; Tay Sachs disease; Beta hexosaminidase alpha chain precursor; Beta hexosaminidase subunit alpha; Beta N acetylhexosaminidase; Beta N acetylhexosaminidase subunit alpha; Beta-N-acetylhexosaminidase subunit alpha; HEXA_HUMAN; Hexosaminidase A alpha polypeptide; Hexosaminidase A; Hexosaminidase subunit A; MGC99608; N acetyl beta glucosaminidase; N acetyl beta glucosaminidase subunit alpha; N-acetyl-beta-glucosaminidase subunit alpha; TSD; fc04h11; wu:fc04h11; wu:fv09f06; si:dkey-35i22.2; beta-hexosaminidase subunit beta

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