PepNet
algorithm · CNN
Temporal convolutional network
| Kind | algorithm |
| Deep learning | yes |
| Acquisition | DDA |
| Family | CNN |
Code
Live stars, open issues and last-push figures are on the Code activity chart.
Data
What the papers describing this method trained it on and reported its results on, as each paper states it. A version is named only where the paper names one.
Trained on
- MassIVE-KB (version not stated) · 2022 preprint, 2023 peer-reviewed
- NIST peptide tandem mass spectral libraries (version not stated) · 2022 preprint, 2023 peer-reviewed
- NIST peptide tandem mass spectral libraries (synthetic HCD) · 2022 preprint, 2023 peer-reviewed
- ProteomeTools (version not stated) · 2022 preprint, 2023 peer-reviewed
Evaluated on
- De novo sequencing of DIA data (as deposited) · 2022 preprint, 2023 peer-reviewed
- The Proteome Landscape of the Kingdoms of Life (as deposited) · 2022 preprint, 2023 peer-reviewed
Benchmarks
- ProteoBench, on the nine-species benchmark, ProteoBench selection: peptide-level AUC 0.682; precision 0.399 at 100% coverage; amino-acid AUC 0.774 (version v0.0.1, submitted 2026-08-10).
Both are mass-based matches on the tool’s most recent run. What these numbers mean.
Compared against in other papers (4)
5 tables from 4 papers that report this method as a baseline, newest first. The caveats of the comparisons above hold twice over: each paper ran, retrained or quoted this method its own way, so its number here is that paper’s claim, not a measurement of the method. Where a paper says which it did, the word follows the method’s name.
DiffNovo: A Transformer-Diffusion Model for De Novo Peptide Sequencing (2025) · 2 tables
Table 2
DiffNovo: A Transformer-Diffusion Model for De Novo Peptide Sequencing, page 8: Comparison of DiffNovo and other state-of-the-art (SOTA) methods on peptide precision across three DIA datasets.
| De novo sequencing of DIA data | Peptide precision | ||
|---|---|---|---|
| UTI | OC | Plasma | |
| DiffNovo | 0.659 | 0.735 | 0.632 |
| DeepNovo-DIA | 0.403 | 0.417 | 0.351 |
| PepNet | 0.296 | 0.368 | 0.550 |
| Cascadia | 0.291 | 0.301 | 0.736 |
PepNet, Plasma: the printed cell reads “0.550/0.530*/0.664+”, and only 0.550 is in the table. The paper’s note: “+ Indicates the filtered peptide-level accuracy, and * indicates the peptide-level accuracy reported in [10].”
Table 1
DiffNovo: A Transformer-Diffusion Model for De Novo Peptide Sequencing, page 7: Comparison of DiffNovo and other state-of-the-art (SOTA) methods on amino acid recall and precision across three DIA datasets.
| De novo sequencing of DIA data | Amino acid recall | Amino acid precision | ||||
|---|---|---|---|---|---|---|
| UTI | OC | Plasma | UTI | OC | Plasma | |
| DiffNovo | 0.665 | 0.749 | 0.663 | 0.675 | 0.743 | 0.675 |
| DeepNovo-DIA | 0.566 | 0.547 | 0.689 | 0.612 | 0.601 | 0.702 |
| PepNet | 0.396 | 0.455 | 0.509 | 0.391 | 0.451 | 0.491 |
| Cascadia | 0.293 | 0.286 | 0.704 | 0.341 | 0.349 | 0.782 |
PepNet, Plasma: the printed cell reads “0.491 / 0.725*”, and only 0.491 is in the table. The paper’s note: “* Indicates the positional accuracy reported in [10].”
π-PrimeNovo: an accurate and efficient non-autoregressive deep learning model for de novo peptide sequencing (2025) · 1 table
Supplementary Table 3
π-PrimeNovo: an accurate and efficient non-autoregressive deep learning model for de novo peptide sequencing, page 26: Peptide recall on the nine-species benchmark dataset. Note: the bold text indicates the highest performance in each row.
The same table is also printed in π-PrimeNovo: an accurate and efficient non-autoregressive deep learning model for de novo peptide sequencing (Supplementary Table 3, page 31).
| Nine-species benchmark | Peptide recall | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Apis mellifera | Bacillus subtilis | Candidatus Thiodiazotropha endoloripes | Homo sapiens | Methanosarcina mazei | Mus musculus | Saccharomyces cerevisiae | Solanum lycopersicum | Vigna mungo | Average | |
| PEAKS | 0.29 | 0.39 | 0.20 | 0.28 | 0.36 | 0.20 | 0.43 | 0.40 | 0.36 | 0.32 |
| PepNet | 0.28 | 0.42 | 0.24 | 0.23 | 0.38 | 0.28 | 0.37 | 0.43 | 0.32 | 0.33 |
| DeepNovo | 0.33 | 0.45 | 0.25 | 0.29 | 0.42 | 0.29 | 0.46 | 0.45 | 0.44 | 0.38 |
| PointNovo | 0.40 | 0.52 | 0.30 | 0.35 | 0.48 | 0.36 | 0.53 | 0.51 | 0.51 | 0.44 |
| Casanovo | 0.41 | 0.54 | 0.33 | 0.34 | 0.48 | 0.43 | 0.49 | 0.52 | 0.51 | 0.45 |
| Casanovo V2 | 0.49 | 0.62 | 0.45 | 0.45 | 0.56 | 0.48 | 0.60 | 0.62 | 0.59 | 0.54 |
| π-PrimeNovo | 0.60 | 0.72 | 0.53 | 0.57 | 0.65 | 0.57 | 0.70 | 0.70 | 0.70 | 0.64 |
BiATNovo: An Attention-based Bidirectional De Novo Sequencing Framework for Data-Independent-Acquisition Mass Spectrometry (2024) · 1 table
Table 2
BiATNovo: An Attention-based Bidirectional De Novo Sequencing Framework for Data-Independent-Acquisition Mass Spectrometry, page 8: Comparison of DeepNovo-DIA, PepNet and BiATNovo
| De novo sequencing of DIA data | Amino acid precision | Amino acid recall | Peptide precision | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OC | UTI | Plasma | OC | UTI | Plasma | OC | UTI | Plasma | |
| DeepNovo-DIA | 0.5562 | 0.6286 | 0.4354 | 0.5596 | 0.6243 | 0.4335 | 0.5098 | 0.5525 | 0.3322 |
| BiATNovo | 0.6817 | 0.7108 | 0.4525 | 0.6746 | 0.7076 | 0.4511 | 0.6439 | 0.6584 | 0.3691 |
| PepNet | 0.4008 | 0.4004 | 0.3064 | ||||||
Transformer-Based De Novo Peptide Sequencing for Data-Independent Acquisition Mass Spectrometry (2024) · 1 table
TABLE I
Transformer-Based De Novo Peptide Sequencing for Data-Independent Acquisition Mass Spectrometry, page 5: Precision comparison of Transformer-DIA, DeepNovo-DIA and PepNet.
| De novo sequencing of DIA data | Peptide precision | Amino acid precision | ||||
|---|---|---|---|---|---|---|
| UTI | OC | Plasma | UTI | OC | Plasma | |
| DiaTrans | 0.663 | 0.798 | 0.672 | 0.731 | 0.829 | 0.78 |
| DeepNovo-DIA | 0.403 | 0.417 | 0.383 | 0.566 | 0.547 | 0.702 |
| PepNet | 0.296 | 0.368 | 0.351 | 0.396 | 0.455 | 0.509 |
Papers describing it (2)
- PepNet: A Fully Convolutional Neural Network for De novo Peptide Sequencing (2022, Research Square, preprint)
- Accurate de novo peptide sequencing using fully convolutional neural networks (2023, Nature Communications, peer-reviewed)
Paper using it
An application or evaluation that ran this method. It is not counted among its authors below.
- Evaluation of the accuracy of false alarm frequency control methods for de novo spectrum (2025, Proceedings of the Southwest State University. Series: IT Management, Computer Science, Computer Engineering. Medical Equipment Engineering, peer-reviewed)