PubMed · 3773753
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1986. Enzyme structure. Part L.. https://pubmed.ncbi.nlm.nih.gov/3773753/
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Dimeric proteins can arise from monomers by the simple exchange of secondary structural elements or a wholesale swapping of domains. These results have implications for the construction of novel oligomeric molecules and illuminate how existing structures may have evolved.
Fourier transform infrared (FTIR) spectroscopy is an established tool for the structural characterization of proteins. However, many potential pitfalls exist for the unwary investigator. In this review we critically assess the application of FTIR spectroscopy to the determination of protein structure by (1) outlining the principles underlying protein secondary structure determination by FTIR spectroscopy, (2) highlighting the situations in which FTIR spectroscopy should be considered the technique of choice, (3) discussing the manner in which experiments should be conducted to derive as much physiologically relevant information as possible, and (4) outlining current methods for the determination of secondary structure from infrared spectra of proteins.