Title : Molecular basis of an adult form of beta-hexosaminidase B deficiency with motor neuron disease.

Pub. Date : 1991 Nov 27

PMID : 1720305






3 Functional Relationships(s)
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1 Biochemical evidence for impaired activator protein binding was obtained by purifying Hex A from KL urine and demonstrating a greater than 50% reduction of in vitro GM2 hydrolysis compared to normal urinary Hex A. gm2 hexosaminidase subunit alpha Homo sapiens
2 We propose that the patient is a compound heterozygote in which a combination of no self-association of the mutant beta-chains and impaired activator protein binding to alpha-beta (mutant) (Hex A) required for GM2 hydrolysis result in total beta-Hex B deficiency and slow accumulation of GM2 ganglioside, primarily in motor neurons. gm2 hexosaminidase subunit alpha Homo sapiens
3 We propose that the patient is a compound heterozygote in which a combination of no self-association of the mutant beta-chains and impaired activator protein binding to alpha-beta (mutant) (Hex A) required for GM2 hydrolysis result in total beta-Hex B deficiency and slow accumulation of GM2 ganglioside, primarily in motor neurons. G(M2) Ganglioside hexosaminidase subunit alpha Homo sapiens