SR proteins and the nonsense-mediated decay mechanism are involved in human GLB1 gene alternative splicing
2008

How the GLB1 Gene is Regulated in Alternative Splicing

publication Evidence: moderate

Author Information

Author(s): Raül Santamaria, Lluïsa Vilageliu, Daniel Grinberg

Primary Institution: Universitat de Barcelona

Hypothesis

The study investigates the mechanisms regulating alternative splicing of the GLB1 gene.

Conclusion

The study found that several transcripts of the GLB1 gene are generated, but only those with a correct reading frame are not degraded.

Supporting Evidence

  • Cycloheximide treatment revealed new transcripts that are degraded by nonsense-mediated decay.
  • Overexpression of SR proteins altered the proportion of different transcripts produced.
  • The study compared the GLB1 gene among different species to understand splicing mechanisms.

Takeaway

The GLB1 gene can make different proteins by skipping some parts, and certain proteins help decide which parts to keep.

Methodology

The study involved treating HeLa cells and human fibroblasts with cycloheximide and analyzing the resulting transcripts through RT-PCR.

Limitations

The study's findings may not fully represent physiological conditions due to the use of over-expressed proteins in a minigene system.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1756-0500-1-137

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