Measuring the effects of co-solvents on hydrogen bonding in water through infrared

Presentation Type

Abstract

Faculty Advisor

Johannes Schelvis

Access Type

Event

Start Date

25-4-2025 9:00 AM

End Date

25-4-2025 9:59 AM

Description

Co-solvents, such as ��-glycerophosphate, sucrose, and trehalose, have been found in thermophilic organisms and are thought to help stabilize protein structure at high temperatures. This study analyzes temperature-dependent changes in the water libration-bending mode to determine if the co-solvents stabilize water structure by strengthening hydrogen-bonding interactions between water molecules. Additionally, we investigated the role of these co-solvents in stabilizing photolyase at high temperature to assess their protective effects on protein structure/function by investigating the enzyme's activity. By studying how ��-glycerophosphate, sucrose, and trehalose influence hydrogen bonding in water at different temperatures and their impact on DNA repair through photolyase activity, we hope to gain a better understanding of how the co-solvents are able to impact protein stability at high temperatures.

Comments

Poster presentation at the 2025 Student Research Symposium.

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Apr 25th, 9:00 AM Apr 25th, 9:59 AM

Measuring the effects of co-solvents on hydrogen bonding in water through infrared

Co-solvents, such as ��-glycerophosphate, sucrose, and trehalose, have been found in thermophilic organisms and are thought to help stabilize protein structure at high temperatures. This study analyzes temperature-dependent changes in the water libration-bending mode to determine if the co-solvents stabilize water structure by strengthening hydrogen-bonding interactions between water molecules. Additionally, we investigated the role of these co-solvents in stabilizing photolyase at high temperature to assess their protective effects on protein structure/function by investigating the enzyme's activity. By studying how ��-glycerophosphate, sucrose, and trehalose influence hydrogen bonding in water at different temperatures and their impact on DNA repair through photolyase activity, we hope to gain a better understanding of how the co-solvents are able to impact protein stability at high temperatures.