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Reference - PMID:37637271 - Isolation of mutant alleles of the U6 snRNA m 6 A methyltransferase Mtl16 and characterization of their genetic interactions with splicing mutants in Schizosaccharomyces pombe .

Reference summary

PubMed ID
PMID:37637271
Title
Isolation of mutant alleles of the U6 snRNA m 6 A methyltransferase Mtl16 and characterization of their genetic interactions with splicing mutants in Schizosaccharomyces pombe .
Authors
Willet AH, Ren L, Turner LA, Gould KL
Citation
MicroPubl Biol 2023;2023
Publication year
2023
Abstract
Schizosaccharomyces pombe Dim1 is a conserved essential component of the U4/U6.U5 tri-snRNP complex essential for pre-mRNA splicing. In a synthetic lethal screen with the temperature-sensitive dim1-35 mutant, we isolated multiple alleles of non-essential mtl16 that encodes the U6 snRNA m 6 A methyltransferase. Further genetic analysis revealed strong and specific negative genetic interactions between mtl16 and a mutation in the Dim1 binding partner, Prp31, and between dim1-35 and a mutation in the Prp31 binding partner, Prp6. Our work provides additional tools to study pre-mRNA splicing in S. pombe and biological confirmation of the importance of the Prp6-Prp31-Dim1-U6 snRNA interactions for pre-mRNA splicing.

Annotation

GO biological process

GO:0000398 - mRNA splicing, via spliceosome

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Multi-locus phenotype

FYPO:0001235 - decreased extent of cell population growth

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FYPO:0001355 - decreased vegetative cell population growth

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FYPO:0002061 - inviable vegetative cell population

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Single locus phenotype

FYPO:0000964 - normal growth on thiabendazole

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Genotypes:

FYPO:0000091 - sensitive to thiabendazole

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