Flavodoxin protein electron carriers: bioinformatic analysis and interactions with sulfite reductases

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dc.contributor.advisorSilberg, Jonathan J.
dc.contributor.committeeMemberBennett, George N.
dc.contributor.committeeMemberAjo-Franklin, Caroline M.
dc.creatorGuseva, Anna
dc.date.accessioned2020-08-14T18:31:36Z
dc.date.available2020-08-14T18:31:36Z
dc.date.created2020-08
dc.date.issued2020-08-14
dc.date.submittedAugust 2020
dc.date.updated2020-08-14T18:31:36Z
dc.description.abstractFlavodoxins (Flds) are oxidoreductases that distribute electrons to different metabolic pathways through interactions with an array of partner proteins. The aim of my thesis is to understand Fld evolution, establish whether Flds are encoded within the same genomes as Fd-dependent sulfite reductases (SIRs), and demonstrate that a cellular assay can monitor Fld electron transfer (ET) to SIRs. Using bioinformatics, I identify numerous microbes whose genomes encode both Fld and SIR genes. Additionally, I show that Flds can support ET to SIR using a synthetic pathway where protein-mediated ET is monitored using the growth of an Escherichia coli auxotroph that depends upon Fld transferring electrons from a Fd:NADP+ reductase to SIR. My results represent the first evidence that Flds support ET to assimilatory SIRs. Additionally, they show how a synthetic ET pathway in cells can be leveraged to rapidly compare the ET efficiencies of different Flds.
dc.format.mimetypeapplication/pdf
dc.identifier.citationGuseva, Anna. "Flavodoxin protein electron carriers: bioinformatic analysis and interactions with sulfite reductases." (2020) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/109196">https://hdl.handle.net/1911/109196</a>.
dc.identifier.urihttps://hdl.handle.net/1911/109196
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.subjectferredoxin
dc.subjectflavodoxin
dc.subjectsulfite reductase
dc.subjectsynthetic biology
dc.subjectbioinformatics
dc.titleFlavodoxin protein electron carriers: bioinformatic analysis and interactions with sulfite reductases
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 Science
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