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wrTopDownFrag

Internal Fragment Identification from Top-Down Mass Spectrometry

v1.0.4 · Apr 21, 2025 · GPL-3

Description

Top-Down mass spectrometry aims to identify entire proteins as well as their (post-translational) modifications or ions bound (eg Chen et al (2018) <doi:10.1021/acs.analchem.7b04747>). The pattern of internal fragments (Haverland et al (2017) <doi:10.1007/s13361-017-1635-x>) may reveal important information about the original structure of the proteins studied (Skinner et al (2018) <doi:10.1038/nchembio.2515> and Li et al (2018) <doi:10.1038/nchem.2908>). However, the number of possible internal fragments gets huge with longer proteins and subsequent identification of internal fragments remains challenging, in particular since the the accuracy of measurements with current mass spectrometers represents a limiting factor. This package attempts to deal with the complexity of internal fragments and allows identification of terminal and internal fragments from deconvoluted mass-spectrometry data.

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r-devel-linux-x86_64-debian-clang OK
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r-devel-macos-arm64 OK
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r-patched-linux-x86_64 OK
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r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Dependency Network

Dependencies Reverse dependencies wrMisc wrProteo wrTopDownFrag

Version History

new 1.0.4 Mar 10, 2026
updated 1.0.4 ← 1.0.2 diff Apr 20, 2025
new 1.0.2 Sep 7, 2020