pFind Studio: a computational solution for mass spectrometry-based proteomics


pLabel is a mass spectral peak labeling software developed for proteomics research. Main Functions:

1. Supporting labeling a batch of spectra. Data and search result can be imported directly at the same time.

2. Supporting multiple formats of data type (dta, mgf, ms2) and results of multiple search engines (pFind, Mascot, SEQUEST).

3. Supporting ECD/ETD spectra labeling.

4. Supporting multiple AA sites, multiple types of modification.

5. Supporting a flexible way of labeling NLs (neutral losses).Users can self-define an NL with its molecular formula or mass.

6. Supporting statistical function.

7. Supporting spectra exporting to different formats of picture (jpg, bmp, tiff, png) in single or batch mode.

Cite us

1. pFind: a novel database-searching software system for automated peptide and protein identification via tandem mass spectrometry.
De-Quan Li, Yan Fu, Rui-Xiang Sun, Charles X. Ling, Yonggang Wei, Hu Zhou, Rong Zeng, Qiang Yang, Si-Min He and Wen Gao.

Bioinformatics, 21(13), 3049-3050, 2005. [abstract]

2. pFind 2.0: a software package for peptide and protein identification via tandem mass spectrometry.
Le-Heng Wang, De-Quan Li, Yan Fu, Hai-Peng Wang, Jing-Fen Zhang, Zuo-Fei Yuan,Rui-Xiang Sun, Rong Zeng, Si-Min He and Wen Gao.

Rapid Communications in Mass Spectrometry, 21, 2985-2991, 2007. [abstract]

Notice: please quote these above publications when you use pLabel software in your papers.


You can download this file user_guide.pdf, which tells you how to use pLabel.

pLabel v2.4.3.0 is currently free to use. Please read carefully the pLabel Software License Agreement before downloading and using the software. Please fill in the registered table and email it to to get the download link.

* The expiration date is set on Jan. 10, 2026. If it's expired, you can continue to apply for a new version.

You can use example dataset to test pLabel. Download example dataset.

If you have any questions about it, please contact

Version history

Release version Release date Click for more
pLabel v2.4.3.0 2023-01-03 Download Release Notes
pLabel v2.4.1.0 2019-12-30 Download Release Notes
pLabel v2.4.0.5 2017-12-22 Download Release Notes