Related Experiment Videos
[Genetic control of hexosaminidases]
Archives Francaises De Pediatrie
|August 1, 1977
Summary
Interspecific cell hybrids reveal that hexosaminidases A, B, and C are controlled by two genes, alpha and beta. Isozyme CF appears to have independent genetic control, distinct from the other hexosaminidases.
Area of Science:
- Biochemistry
- Genetics
- Cell Biology
Context:
- Investigating the genetic control of human hexosaminidase isozymes.
- Utilizing interspecific cell hybrids to map enzyme loci.
- Understanding the molecular basis of enzyme variations.
Purpose:
- To elucidate the genetic basis of hexosaminidase isozymes A, B, and C.
- To determine the subunit composition and genetic control of hexosaminidases.
- To investigate the genetic regulation of isozyme CF.
Summary:
- Hexosaminidases A, B, and C are proposed to be controlled by two genes, alpha and beta.
- Hexosaminidase B and C are homopolymers ((beta beta)n and (alpha alpha)n, respectively).
- Hexosaminidase A is a heteropolymer ((alpha beta)n), and isozyme CF exhibits independent genetic control.
Impact:
- Provides insights into the genetic architecture of human hexosaminidases.
- Contributes to understanding enzyme variability and its genetic underpinnings.
- Potential implications for studying genetic disorders related to hexosaminidase deficiencies, such as Tay-Sachs disease.