发明名称 |
Interactive analysis of mass spectrometry data |
摘要 |
This invention relates to graphical user-interactive displays for use in MS-based analysis of protein impurities, as well as methods and software for generating and using such. One aspect provides a user-interactive display comprising an extracted mass chromatogram (XIC), an MS1 spectrum and an MS2 spectrum, all simultaneously representing a user-selected peptide. Another aspect provides a user interactive display simultaneously presenting paired spectra (XIC, MS1 and/or MS2) for a variant peptide and its corresponding wildtype counterpart. |
申请公布号 |
US9640376(B1) |
申请公布日期 |
2017.05.02 |
申请号 |
US201414306020 |
申请日期 |
2014.06.16 |
申请人 |
Protein Metrics Inc. |
发明人 |
Becker Christopher;Bern Marshall;Kil Yong Joo;Kim Michael Taejong;Zhang Boyan |
分类号 |
H01J49/00;G06T11/20;H01J49/02 |
主分类号 |
H01J49/00 |
代理机构 |
Shay Glenn LLP |
代理人 |
Shay Glenn LLP |
主权项 |
1. A non-transitory machine-readable medium that stores instructions, which, when performed by a machine, cause the machine to perform operations comprising:
receiving a data file comprising mass spectrometry (MS) data for a sample comprising a mixture of molecules comprising a reference molecule and one or more variant molecules, wherein each variant molecule has a chemical modification relative to the reference molecule, and wherein the MS data comprises a plurality of spectral representations; providing an assembly of molecular identifications, wherein each molecular identification correlates a spectral representation with the reference molecule and a modification state, wherein the modification state describes the chemical modification for a variant molecule relative to the reference molecule and wherein the modification state is null for the reference molecule; selecting a molecular identification based on user-input; and simultaneously and interactively displaying a first arrangement of a plurality of spectral representations, wherein a first spectral representation of the first arrangement is correlated to the selected molecular identification and a second spectral representation of the first arrangement is correlated to a first molecular identification having the same reference molecule but different modification state; wherein a user selection or modification in the first spectral representation is automatically made in the second spectral representation and a user selection or modification in the second spectral representation is automatically made in the first spectral representation. |
地址 |
San Carlos CA US |