Research on Efficient Algorithm of Peptide Identification and Quantification in Proteomics
Zhen Wang, Jiyang Zhang, Yunping Zhu, Hongwei Xie
Available Online July 2016.
- https://doi.org/10.2991/bbe-16.2016.22How to use a DOI?
- Proteomics, Label-free quantification, XICFinder, Detectability, Reproducibility, Precision.
- Because of its simple experiment design and low experiment cost, label-free quantitative technology based on mass spectrometry analysis is being used more and more widely. Aiming at peptide identification and quantification, which are pivotal step of the label-free quantitative analysis, we develop an efficient algorithm named XIC Finder based on C++ platform. In term of the peptides which failed to be identified by MS/MS spectrum, we utilize ESP model trained by 20 optimized peptide features with Random Forest method, to predict those peptides detectability and chose the highest scored peptide as the correct peptide. Compared with MaxQuant and IDEAL-Q, other algorithms developed for quantitative MS data, XIC Finder improves the performance of the peptide identification and quantification significantly. Furthermore, we evaluated the reproducibility and precision of XIC Finder by using the replication dataset and the UPS1 standard data set respectively and prove the result is better than other algorithms.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Zhen Wang AU - Jiyang Zhang AU - Yunping Zhu AU - Hongwei Xie PY - 2016/07 DA - 2016/07 TI - Research on Efficient Algorithm of Peptide Identification and Quantification in Proteomics PB - Atlantis Press SP - 130 EP - 136 SN - 2468-5747 UR - https://doi.org/10.2991/bbe-16.2016.22 DO - https://doi.org/10.2991/bbe-16.2016.22 ID - Wang2016/07 ER -