Structure And Spectra Of A Complex Biochromophore - Deprotonated Biliverdin Ix

Weber, J. Mathias

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https://hdl.handle.net/2142/116525 Copy

Description

Title

Structure And Spectra Of A Complex Biochromophore - Deprotonated Biliverdin Ix

Author(s)

Weber, J. Mathias

Contributor(s)

• Kappes, Manfred M.
• Weis, Patrick
• Schneider, Erik K.
• Dodson, Leah G.
• Zagorec-Marks, Wyatt

Issue Date

2022-06-22

Keyword(s)

Conformers and isomers

Abstract

\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.8]{BV.eps} \end{wrapfigure} Biliverdin (BV) is an attractive candidate for use in fluorescence microscopy applications, because it can be genetically encoded (and engineered) as a red fluorescent biomarker by binding to cysteine and including it in fluorescent proteins. An important step towards rational design of a biomarker with specific desired properties is to study the intrinsic properties of the molecule, i.e., in the absence of any chemical environment. In the present work, we focus on the singly and doubly deprotonated forms of the position isomer biliverdin IX (see Figure). The structural flexibility of this molecule makes structural identification of its conformation in vacuo rather challenging. Ion mobility and cryogenic infrared spectroscopy allow us to obtain structural information. The electronic spectrum depends strongly on the deprotonation state of the molecule. We interpret the data with density functional theory calculations.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Genre of Resource

Conference Paper / Presentation

Language

eng

Handle URL

https://hdl.handle.net/2142/116525

DOI

https://doi.org/10.15278/isms.2022.WL11

Copyright and License Information

Copyright 2022 held by the authors

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