Event Title

Secondary Protein Structure Analysis of Cu, Zn Superoxide Dismutase Aggregates Found in ALS

Co-investigators

Megan Bourassa (Stony Brook University); Joan S. Valentine (University of California); David R. Borchelt (University of Florida); Lisa Miller (Brookhaven National Laboratory)

Faculty Mentor

Ashok Puri

Location

Memorial Gym

Start Date

20-4-2012 2:30 PM

End Date

20-4-2012 3:30 PM

Description

This study seeks to compare the secondary structure of the protein aggregates in four common mutations of Cu/Zn Superoxide Dismutase (SOD1) in order to understand how SOD1 mutant protein aggregates cause motor neuron cell apoptosis. Chinese hamster ovary (CHO) cells were grown on silicon nitride windows and transfected to express SOD1 mutations (A4V, H80R, D125H, G37R, wild type, and non-transgenic controls) co-expressed with yellow fluorescent protein. CHO cells were later subjected to transmission mode Fourier transform infrared spectroscopy from which amide I peaks was analyzed for protein secondary structures. Different transfection time rates with different degrees of aggregation were discovered among the mutations.

Comments

Poster presentation

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Apr 20th, 2:30 PM Apr 20th, 3:30 PM

Secondary Protein Structure Analysis of Cu, Zn Superoxide Dismutase Aggregates Found in ALS

Memorial Gym

This study seeks to compare the secondary structure of the protein aggregates in four common mutations of Cu/Zn Superoxide Dismutase (SOD1) in order to understand how SOD1 mutant protein aggregates cause motor neuron cell apoptosis. Chinese hamster ovary (CHO) cells were grown on silicon nitride windows and transfected to express SOD1 mutations (A4V, H80R, D125H, G37R, wild type, and non-transgenic controls) co-expressed with yellow fluorescent protein. CHO cells were later subjected to transmission mode Fourier transform infrared spectroscopy from which amide I peaks was analyzed for protein secondary structures. Different transfection time rates with different degrees of aggregation were discovered among the mutations.