UV-POSIT: Web-Based Tools for Rapid and Facile Structural Interpretation of Ultraviolet Photodissociation (UVPD) Mass Spectra

作者：Rosenberg Jake; Parker W Ryan; Cammarata Michael B; Brodbelt Jennifer S^*

来源：Journal of the American Society for Mass Spectrometry, 2018, 29(6): 1323-1326.

DOI：10.1007/s13361-018-1918-x

• Ultraviolet photodissociation
• Charge site
• Protein
• Native MS

UV-POSIT (Ultraviolet Photodissociation Online Structure Interrogation Tools) is a suite of web-based tools designed to facilitate the rapid interpretation of data from native mass spectrometry experiments making use of 193 nm ultraviolet photodissociation (UVPD). The suite includes four separate utilities which assist in the calculation of fragment ion abundances as a function of backbone cleavage sites and sequence position; the localization of charge sites in intact proteins; the calculation of hydrogen elimination propensity for a-type fragment ions; and mass-offset searching of UVPD spectra to identify unknown modifications and assess false positive fragment identifications. UV-POSIT is implemented as a Python/Flask web application hosted at http://uv-posit.cm.utexas.edu. UVPOSIT is available under the MIT license, and the source code is available at https://github.com/jarosenb/UV_POSIT.

• 出版日期2018-6