Drosophila Psf2 Has a Role In Chromosome Condensation

ECU Author/Contributor (non-ECU co-authors, if there are any, appear on document)

Jeffrey Patrick Chmielewski (Creator)

Institution

East Carolina University (ECU )

Web Site: http://www.ecu.edu/lib/

Advisor

Tim Christensen

Abstract: The condensation state of chromosomes is a critical parameter in multiple processes within the cell. Failures in the maintenance of appropriate condensation states may lead to genomic instability mis-expression of genes and a number of disease states. During cell proliferation replication of DNA represents an ongoing challenge for chromosome packaging as DNA must be unpackaged for replication and then faithfully repackaged. An integral member of the DNA replication machinery is the GINS complex which has been shown to stabilize the CMG complex which is required for processivity of the Mcm2-7 helicase complex during S phase. Through examination of the phenotypes associated with a null mutation in Psf2 a member of the evolutionarily conserved GINS complex we find that Drosophila Psf2 likely has a role in establishing chromosome condensation and that the defects associated with this mis-condensation impact M phase progression genomic stability and transcriptional regulation. 

Additional Information

Publication

Thesis

Date: 2012

Keywords

Biology, Genetics, Chromosomes, CMG, Condensation, Psf2

Subjects

DNA replication

Chromosome replication

Drosophila

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