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. 1992 Aug;12(8):3540–3547. doi: 10.1128/mcb.12.8.3540

A dominant negative mutation in a spliceosomal ATPase affects ATP hydrolysis but not binding to the spliceosome.

B Schwer 1, C Guthrie 1
PMCID: PMC364619  PMID: 1385854

Abstract

PRP16 is an RNA-dependent ATPase required for the second catalytic step of splicing in vitro. A dominant suppressor of a branchpoint mutation in Saccharomyces cerevisiae, the prp16-1 allele, contains a Tyr to Asp change in the nucleotide-binding site consensus sequence. We now find that cells harboring the prp16-1 allele have a general growth defect that is exacerbated at cold temperatures. The mutant is dominant over the wild-type gene when overexpressed. Purified Prp16-1 protein binds to the spliceosome with apparently wild-type affinity; however, it only weakly complements the second-step block in a PRP16-depleted extract. Analysis of purified Prp16-1 revealed that the rate of ATP hydrolysis is greatly reduced. These results can account for the dominant negative growth phenotype and argue that the ATPase activity of PRP16 is essential for its role in splicing. Moreover, since PRP16 is a member of the DEAD/H box families, these findings have important implications for a large class of proteins.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Burgess S., Couto J. R., Guthrie C. A putative ATP binding protein influences the fidelity of branchpoint recognition in yeast splicing. Cell. 1990 Mar 9;60(5):705–717. doi: 10.1016/0092-8674(90)90086-t. [DOI] [PubMed] [Google Scholar]
  2. Chen J. H., Lin R. J. The yeast PRP2 protein, a putative RNA-dependent ATPase, shares extensive sequence homology with two other pre-mRNA splicing factors. Nucleic Acids Res. 1990 Nov 11;18(21):6447–6447. doi: 10.1093/nar/18.21.6447. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Clark R., Lane D. P., Tjian R. Use of monoclonal antibodies as probes of simian virus 40 T antigen ATPase activity. J Biol Chem. 1981 Nov 25;256(22):11854–11858. [PubMed] [Google Scholar]
  4. Company M., Arenas J., Abelson J. Requirement of the RNA helicase-like protein PRP22 for release of messenger RNA from spliceosomes. Nature. 1991 Feb 7;349(6309):487–493. doi: 10.1038/349487a0. [DOI] [PubMed] [Google Scholar]
  5. Couto J. R., Tamm J., Parker R., Guthrie C. A trans-acting suppressor restores splicing of a yeast intron with a branch point mutation. Genes Dev. 1987 Jul;1(5):445–455. doi: 10.1101/gad.1.5.445. [DOI] [PubMed] [Google Scholar]
  6. Dalbadie-McFarland G., Abelson J. PRP5: a helicase-like protein required for mRNA splicing in yeast. Proc Natl Acad Sci U S A. 1990 Jun;87(11):4236–4240. doi: 10.1073/pnas.87.11.4236. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Haber L. T., Walker G. C. Altering the conserved nucleotide binding motif in the Salmonella typhimurium MutS mismatch repair protein affects both its ATPase and mismatch binding activities. EMBO J. 1991 Sep;10(9):2707–2715. doi: 10.1002/j.1460-2075.1991.tb07815.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Han M., Sternberg P. W. Analysis of dominant-negative mutations of the Caenorhabditis elegans let-60 ras gene. Genes Dev. 1991 Dec;5(12A):2188–2198. doi: 10.1101/gad.5.12a.2188. [DOI] [PubMed] [Google Scholar]
  9. Herskowitz I. Functional inactivation of genes by dominant negative mutations. Nature. 1987 Sep 17;329(6136):219–222. doi: 10.1038/329219a0. [DOI] [PubMed] [Google Scholar]
  10. Kozak M. Downstream secondary structure facilitates recognition of initiator codons by eukaryotic ribosomes. Proc Natl Acad Sci U S A. 1990 Nov;87(21):8301–8305. doi: 10.1073/pnas.87.21.8301. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Lin R. J., Newman A. J., Cheng S. C., Abelson J. Yeast mRNA splicing in vitro. J Biol Chem. 1985 Nov 25;260(27):14780–14792. [PubMed] [Google Scholar]
  12. Linder P., Lasko P. F., Ashburner M., Leroy P., Nielsen P. J., Nishi K., Schnier J., Slonimski P. P. Birth of the D-E-A-D box. Nature. 1989 Jan 12;337(6203):121–122. doi: 10.1038/337121a0. [DOI] [PubMed] [Google Scholar]
  13. Rozen F., Edery I., Meerovitch K., Dever T. E., Merrick W. C., Sonenberg N. Bidirectional RNA helicase activity of eucaryotic translation initiation factors 4A and 4F. Mol Cell Biol. 1990 Mar;10(3):1134–1144. doi: 10.1128/mcb.10.3.1134. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Ruby S. W., Abelson J. Pre-mRNA splicing in yeast. Trends Genet. 1991 Mar;7(3):79–85. doi: 10.1016/0168-9525(91)90276-V. [DOI] [PubMed] [Google Scholar]
  15. Schena M., Picard D., Yamamoto K. R. Vectors for constitutive and inducible gene expression in yeast. Methods Enzymol. 1991;194:389–398. doi: 10.1016/0076-6879(91)94029-c. [DOI] [PubMed] [Google Scholar]
  16. Schwer B., Guthrie C. PRP16 is an RNA-dependent ATPase that interacts transiently with the spliceosome. Nature. 1991 Feb 7;349(6309):494–499. doi: 10.1038/349494a0. [DOI] [PubMed] [Google Scholar]
  17. Strauss E. J., Guthrie C. A cold-sensitive mRNA splicing mutant is a member of the RNA helicase gene family. Genes Dev. 1991 Apr;5(4):629–641. doi: 10.1101/gad.5.4.629. [DOI] [PubMed] [Google Scholar]
  18. Traub P., Nomura M. Structure and function of Escherichia coli ribosomes. VI. Mechanism of assembly of 30 s ribosomes studied in vitro. J Mol Biol. 1969 Mar 28;40(3):391–413. doi: 10.1016/0022-2836(69)90161-2. [DOI] [PubMed] [Google Scholar]
  19. Vijayraghavan U., Company M., Abelson J. Isolation and characterization of pre-mRNA splicing mutants of Saccharomyces cerevisiae. Genes Dev. 1989 Aug;3(8):1206–1216. doi: 10.1101/gad.3.8.1206. [DOI] [PubMed] [Google Scholar]
  20. Wassarman D. A., Steitz J. A. RNA splicing. Alive with DEAD proteins. Nature. 1991 Feb 7;349(6309):463–464. doi: 10.1038/349463a0. [DOI] [PubMed] [Google Scholar]

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