A convenient protein library for spectroscopic calibrations

While several Raman, CD or FTIR spectral libraries are available for well-characterized proteins of known structure, proteins themselves are usually very difficult to acquire, preventing a convenient calibration of new instruments and new recording methods. The problem is particularly critical in th...

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Main Authors: Joëlle De Meutter, Erik Goormaghtigh
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:Computational and Structural Biotechnology Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2001037020303330
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author Joëlle De Meutter
Erik Goormaghtigh
author_facet Joëlle De Meutter
Erik Goormaghtigh
author_sort Joëlle De Meutter
collection DOAJ
description While several Raman, CD or FTIR spectral libraries are available for well-characterized proteins of known structure, proteins themselves are usually very difficult to acquire, preventing a convenient calibration of new instruments and new recording methods. The problem is particularly critical in the field of FTIR spectroscopy where numerous new methods are becoming available on the market.The present papers reports the construction of a protein library (cSP92) including commercially available products, that are well characterized experimentally for their purity and solubility in conditions compatible with the recording of FTIR spectra and whose high-resolution structure is available.Overall, 92 proteins were selected. These proteins cover well the CATH space at the level of classes and architectures. In terms of secondary structure content, an analysis of their high-resolution structure by DSSP shows that the mean content in the different secondary structures present in cSP92 is very similar to the mean content found in the PDB.The 92-protein set is analyzed in details for the distribution of helix length, number of strands in β- sheets, length of β-strands and amino acid content, all features that may be important for the interpretation of FTIR spectra.
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spelling doaj.art-ed11f6c2040247e09b2721c0b6e58c932022-12-21T23:47:34ZengElsevierComputational and Structural Biotechnology Journal2001-03702020-01-011818641876A convenient protein library for spectroscopic calibrationsJoëlle De Meutter0Erik Goormaghtigh1Center for Structural Biology and Bioinformatics, Laboratory for the Structure and Function of Biological Membranes, Campus Plaine CP206/02, Brussels, BelgiumUniversité Libre de Bruxelles CP206/2, B1050 Brussels, Belgium; Corresponding author.While several Raman, CD or FTIR spectral libraries are available for well-characterized proteins of known structure, proteins themselves are usually very difficult to acquire, preventing a convenient calibration of new instruments and new recording methods. The problem is particularly critical in the field of FTIR spectroscopy where numerous new methods are becoming available on the market.The present papers reports the construction of a protein library (cSP92) including commercially available products, that are well characterized experimentally for their purity and solubility in conditions compatible with the recording of FTIR spectra and whose high-resolution structure is available.Overall, 92 proteins were selected. These proteins cover well the CATH space at the level of classes and architectures. In terms of secondary structure content, an analysis of their high-resolution structure by DSSP shows that the mean content in the different secondary structures present in cSP92 is very similar to the mean content found in the PDB.The 92-protein set is analyzed in details for the distribution of helix length, number of strands in β- sheets, length of β-strands and amino acid content, all features that may be important for the interpretation of FTIR spectra.http://www.sciencedirect.com/science/article/pii/S2001037020303330Protein selectionFTIR spectroscopySecondary structureProtein spectroscopy
spellingShingle Joëlle De Meutter
Erik Goormaghtigh
A convenient protein library for spectroscopic calibrations
Computational and Structural Biotechnology Journal
Protein selection
FTIR spectroscopy
Secondary structure
Protein spectroscopy
title A convenient protein library for spectroscopic calibrations
title_full A convenient protein library for spectroscopic calibrations
title_fullStr A convenient protein library for spectroscopic calibrations
title_full_unstemmed A convenient protein library for spectroscopic calibrations
title_short A convenient protein library for spectroscopic calibrations
title_sort convenient protein library for spectroscopic calibrations
topic Protein selection
FTIR spectroscopy
Secondary structure
Protein spectroscopy
url http://www.sciencedirect.com/science/article/pii/S2001037020303330
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