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EXPRESS: Wavelength Calibration Uncertainty in Protein Circular Dichroism Data Bank Spectra
Applied Spectroscopy ( IF 3.5 ) Pub Date : 2021-01-28 , DOI: 10.1177/0003702821990748
Christopher Jones

Algorithms to objectively compare the circular dichroism spectra of biopharmaceuticals, as a measure of consistent higher order structure, and are sensitive to errors in spectropolarimeter wavelength calibration. A public database, the Protein Circular Dichroism Data Bank [PCDDB] contains 108 unique calibration spectra of d-camphor-10-sulphonic acid [CSA], mainly collected on synchrotron-based instruments. Deconvolution of these spectra and statistical evaluation of the peaks located near 290 and 190 nm shows significant mean peak wavelength differences between instruments, with data ranges of 1.8 and 2.3 nm. Peak positions and peak height ratios for individual instruments changed significantly through time, and the difference between wavelength maxima was instrument dependent.

中文翻译:

EXPRESS:蛋白质圆二色性数据库光谱中的波长校准不确定度

客观比较生物药物圆二色光谱的算法,作为一致的高阶结构的度量,并且对分光偏振计波长校准中的误差敏感。一个公共数据库,蛋白质圆二色性数据库 [PCDDB] 包含 108 个独特的 d-樟脑-10-磺酸 [CSA] 校准光谱,主要是在基于同步加速器的仪器上收集的。这些光谱的解卷积和位于 290 和 190 nm 附近的峰的统计评估显示仪器之间显着的平均峰波长差异,数据范围为 1.8 和 2.3 nm。单个仪器的峰位置和峰高比随时间发生显着变化,波长最大值之间的差异取决于仪器。
更新日期:2021-01-28
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