Elucidating the Roles of PEX19 and Prenylation in Arabidopsis Peroxisomes

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dc.contributor.advisorBartel, Bonnie
dc.contributor.committeeMemberShamoo, Yousif
dc.contributor.committeeMemberFarach-Carson, Cindy
dc.contributor.committeeMemberBraam, Janet
dc.contributor.committeeMemberRudgers, Jennifer A.
dc.creatorStoddard, Jerrad
dc.date.accessioned2012-09-05T23:55:39Z
dc.date.accessioned2012-09-05T23:56:36Z
dc.date.available2013-09-05T05:10:05Z
dc.date.created2012-05
dc.date.issued2012-09-05
dc.date.submittedMay 2012
dc.date.updated2012-09-05T23:56:36Z
dc.description.abstractPeroxisomes are organelles originating from the endoplasmic reticulum. Peroxisome biogenesis requires multiple peroxins, including PEX19, a prenylated protein that helps deliver peroxisomal membrane proteins in yeast and mammals. Arabidopsis thaliana PEX19 is encoded by two isogenes, PEX19A and PEX19B. I demonstrate that pex19A and pex19B insertional mutants lack obvious abberant physiological phenotypes. I provide evidence that pex19A pex19B double mutants are inviable, that PEX19B is more abundant than PEX19A in young seedlings, that Arabidopsis PEX19 is farnesylated in vivo, and that YFP-PEX19 predominantly associates with what appears to be a subcellular membrane regardless of its prenylation state. I show that farnesyltransferase mutants apparently contain only non-prenylated PEX19 and lack phenotypes that would indicate inefficient peroxisome activity. My analysis of PEX19 suggests that PEX19 prenylation is dispensable for peroxisome biogenesis, and has generated tools for future studies of the earliest steps in peroxisome biogenesis in plants.
dc.embargo.terms2013-09-05T05:00:00Z
dc.format.mimetypeapplication/pdf
dc.identifier.citationStoddard, Jerrad. "Elucidating the Roles of PEX19 and Prenylation in Arabidopsis Peroxisomes." (2012) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/64615">https://hdl.handle.net/1911/64615</a>.
dc.identifier.slug123456789/ETD-2012-05-58
dc.identifier.urihttps://hdl.handle.net/1911/64615
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectAuxin
dc.subjectPeroxin
dc.subjectPeroxisomes
dc.subjectArabidopsis
dc.titleElucidating the Roles of PEX19 and Prenylation in Arabidopsis Peroxisomes
dc.typeThesis
dc.type.materialText
thesis.degree.departmentBiochemistry and Cell Biology
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Arts
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