Sangam: A Confluence of Knowledge Streams

Proteomics Reveals Distinct Changes Associated with Increased Gamma Radiation Resistance in the Black Yeast Exophiala dermatitidis

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dc.contributor School of Medicine
dc.creator Schultzhaus, Zachary S.
dc.creator Schultzhaus, Janna N.
dc.creator Romsdahl, Jillian
dc.creator Chen, Amy
dc.creator Hervey, W. Judson, IV
dc.creator Leary, Dagmar H.
dc.creator Wang, Zheng
dc.date 2020-09-28T12:40:53Z
dc.date 2020-09-28T12:40:53Z
dc.date 2020-09-25
dc.date 2020-09-25T13:31:00Z
dc.date.accessioned 2023-03-01T18:52:35Z
dc.date.available 2023-03-01T18:52:35Z
dc.identifier Schultzhaus, Z.S.; Schultzhaus, J.N.; Romsdahl, J.; Chen, A.; Hervey IV, W.J.; Leary, D.H.; Wang, Z. Proteomics Reveals Distinct Changes Associated with Increased Gamma Radiation Resistance in the Black Yeast Exophiala dermatitidis. Genes 2020, 11, 1128.
dc.identifier http://hdl.handle.net/10919/100082
dc.identifier https://doi.org/10.3390/genes11101128
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/281635
dc.description The yeast <i>Exophiala dermatitidis</i> exhibits high resistance to &gamma;-radiation in comparison to many other fungi. Several aspects of this phenotype have been characterized, including its dependence on homologous recombination for the repair of radiation-induced DNA damage, and the transcriptomic response invoked by acute &gamma;-radiation exposure in this organism. However, these findings have yet to identify unique &gamma;-radiation exposure survival strategies&mdash;many genes that are induced by &gamma;-radiation exposure do not appear to be important for recovery, and the homologous recombination machinery of this organism is not unique compared to more sensitive species. To identify features associated with &gamma;-radiation resistance, here we characterized the proteomes of two <i>E. dermatitidis</i> strains&mdash;the wild type and a hyper-resistant strain developed through adaptive laboratory evolution&mdash;before and after &gamma;-radiation exposure. The results demonstrate that protein intensities do not change substantially in response to this stress. Rather, the increased resistance exhibited by the evolved strain may be due in part to increased basal levels of single-stranded binding proteins and a large increase in ribosomal content, possibly allowing for a more robust, induced response during recovery. This experiment provides evidence enabling us to focus on DNA replication, protein production, and ribosome levels for further studies into the mechanism of &gamma;-radiation resistance in <i>E. dermatitidis</i> and other fungi.
dc.description Published version
dc.format application/pdf
dc.format application/pdf
dc.language en
dc.publisher MDPI
dc.rights Creative Commons Attribution 4.0 International
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.subject black yeast
dc.subject melanin
dc.subject proteomics
dc.subject radiobiology
dc.subject translation
dc.title Proteomics Reveals Distinct Changes Associated with Increased Gamma Radiation Resistance in the Black Yeast Exophiala dermatitidis
dc.title Genes
dc.type Article - Refereed
dc.type Text
dc.type StillImage


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