» Articles » PMID: 17167106

Modeling Complex Genetic Interactions in a Simple Eukaryotic Genome: Actin Displays a Rich Spectrum of Complex Haploinsufficiencies

Overview
Journal Genes Dev
Specialty Molecular Biology
Date 2006 Dec 15
PMID 17167106
Citations 52
Authors
Affiliations
Soon will be listed here.
Abstract

Multigenic influences are major contributors to human genetic disorders. Since humans are highly polymorphic, there are a high number of possible detrimental, multiallelic gene pairs. The actin cytoskeleton of yeast was used to determine the potential for deleterious bigenic interactions; approximately 4800 complex hemizygote strains were constructed between an actin-null allele and the nonessential gene deletion collection. We found 208 genes that have deleterious complex haploinsufficient (CHI) interactions with actin. This set is enriched for genes with gene ontology terms shared with actin, including several actin-binding protein genes, and nearly half of the CHI genes have defects in actin organization when deleted. Interactions were frequently seen with genes for multiple components of a complex or with genes involved in the same function. For example, many of the genes for the large ribosomal subunit (RPLs) were CHI with act1Delta and had actin organization defects when deleted. This was generally true of only one RPL paralog of apparently duplicate genes, suggesting functional specialization between ribosomal genes. In many cases, CHI interactions could be attributed to localized defects on the actin protein. Spatial congruence in these data suggest that the loss of binding to specific actin-binding proteins causes subsets of CHI interactions.

Citing Articles

Ribosomal protein paralogues in ribosome specialization.

Milenkovic I, Novoa E Philos Trans R Soc Lond B Biol Sci. 2025; 380(1921):20230387.

PMID: 40045786 PMC: 11883438. DOI: 10.1098/rstb.2023.0387.


Loss of cytoplasmic actin filaments raises nuclear actin levels to drive INO80C-dependent chromosome fragmentation.

Hurst V, Gerhold C, Tarashev C, Challa K, Seeber A, Yamazaki S Nat Commun. 2024; 15(1):9910.

PMID: 39548059 PMC: 11568269. DOI: 10.1038/s41467-024-54141-0.


Purification of human β- and γ-actin from budding yeast.

Haarer B, Pimm M, De Jong E, Amberg D, Henty-Ridilla J J Cell Sci. 2023; 136(9).

PMID: 37070275 PMC: 10184827. DOI: 10.1242/jcs.260540.


From systems to structure - using genetic data to model protein structures.

Braberg H, Echeverria I, Kaake R, Sali A, Krogan N Nat Rev Genet. 2022; 23(6):342-354.

PMID: 35013567 PMC: 8744059. DOI: 10.1038/s41576-021-00441-w.


Cytoduction and Plasmiduction in Yeast.

Dorweiler J, Manogaran A Bio Protoc. 2021; 11(17):e4146.

PMID: 34604451 PMC: 8443334. DOI: 10.21769/BioProtoc.4146.


References
1.
Ni L, Snyder M . A genomic study of the bipolar bud site selection pattern in Saccharomyces cerevisiae. Mol Biol Cell. 2001; 12(7):2147-70. PMC: 55669. DOI: 10.1091/mbc.12.7.2147. View

2.
Dunn T, Shortle D . Null alleles of SAC7 suppress temperature-sensitive actin mutations in Saccharomyces cerevisiae. Mol Cell Biol. 1990; 10(5):2308-14. PMC: 360578. DOI: 10.1128/mcb.10.5.2308-2314.1990. View

3.
Sanders S, Jennings J, Canutescu A, Link A, Anthony Weil P . Proteomics of the eukaryotic transcription machinery: identification of proteins associated with components of yeast TFIID by multidimensional mass spectrometry. Mol Cell Biol. 2002; 22(13):4723-38. PMC: 133885. DOI: 10.1128/MCB.22.13.4723-4738.2002. View

4.
Boeckers T, Bockmann J, Kreutz M, Gundelfinger E . ProSAP/Shank proteins - a family of higher order organizing molecules of the postsynaptic density with an emerging role in human neurological disease. J Neurochem. 2002; 81(5):903-10. DOI: 10.1046/j.1471-4159.2002.00931.x. View

5.
Spring K, Ahangari F, Scott S, Waring P, Purdie D, Chen P . Mice heterozygous for mutation in Atm, the gene involved in ataxia-telangiectasia, have heightened susceptibility to cancer. Nat Genet. 2002; 32(1):185-90. DOI: 10.1038/ng958. View