ArticleThe journal of physical chemistry. B2025
Refining Structural Analysis of Proteins: Automated Methods to Measure Transition Dipole Strength of Single Residues.
Article in The journal of physical chemistry. B, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Advances in Probing Amyloid Heterogeneity Using Vibrational Spectroscopy and Imaging.The journal of physical chemistry. B · 2025Review
- Transition Dipole Strength as a Quantitative Tool for Protein Secondary Structure Analysis.The journal of physical chemistry. B · 2025Article
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Authors and funding
4 authors.
Funding
Abstract
Transition dipole strength (TDS) analysis enhances two-dimensional infrared (2D IR) spectroscopy by probing protein structural differences that frequency alone cannot resolve. However, its application has been limited to strong signals due to challenges with low signal-to-noise and large backgrounds in the linear optical density. Manual baseline correction can suffer from user error and produce large artifacts that obscure signals of interest. Here, we introduce a new approach incorporating automated baseline correction via the airPLS algorithm to improve the accuracy and precision of TDS calculations across broad spectral windows. Using human islet amyloid polypeptide, we demonstrate TDS analysis of a single
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