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Updated: Aug 3, 2026
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Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
Published on: April 26, 2017
RBMY, a probable human spermatogenesis factor, and other hnRNP G proteins interact with Tra2beta and affect splicing
J P Venables1, D J Elliott, O V Makarova
1Department of Biochemistry, University of Leicester, University Road, Leicester LE1 7RH, UK.
Human Molecular Genetics
|April 6, 2000
Summary
The RBMY gene family, linked to male infertility, interacts with Tra2beta, a splicing activator. This interaction suggests RBMY proteins play a role in pre-mRNA splicing within spermatocytes.
Area of Science:
- Molecular Biology
- Genetics
- Reproductive Biology
Background:
- The RBMY gene family on the Y chromosome is crucial for male fertility.
- RBMY is expressed in germ cell nuclei, unlike its homolog RBMX.
- Microdeletions in RBMY are linked to male infertility.
Purpose of the Study:
- To investigate the interaction between RBMY proteins and Tra2beta, a pre-mRNA splicing activator.
- To determine the role of RBMY proteins in pre-mRNA splicing, particularly in spermatocytes.
Main Methods:
- Co-immunoprecipitation to detect protein associations.
- Immunofluorescence microscopy to visualize protein co-localization in spermatocytes.
- In vitro splicing assays to assess functional impact.
Main Results:
- RBMY, hnRNP G, and hnRNP G-T interact with Tra2beta.
- RBMY and Tra2beta co-localize in human spermatocyte nuclei.
- RBMY's protein interaction domain inhibits Tra2beta-dependent splicing; its RNA-binding domain influences splice site selection.
Conclusions:
- The hnRNP G protein family is implicated in pre-mRNA splicing.
- RBMY likely participates in Tra2beta-dependent splicing in spermatocytes, potentially impacting male fertility.
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