2026.04Home

Work & record.

Preprints, patents, and platforms shipped during a decade and a half of protein engineering and applied AI.

§ A · Publications
4 preprints
2022.12ExpressUrself: A spatial model for predicting recombinant expression from mRNA sequence.Preprint · ML / RNA
Michael P. Dunne, Javier Caceres-DelpianobioRxiv · 10.1101/2022.12.02.518907

Maximising the yield of recombinantly expressed proteins is a critical part of any protein engineering pipeline. ExpressUrself captures spatial characteristics of the sequence around the start codon to predict expression to a high degree of accuracy on previously unseen transcripts.

2021.09Protein sequence sampling and prediction from structural data.Preprint · GVP / sampling
Gabriel A. Orellana, Javier Caceres-Delpiano, Roberto Ibañez, Michael P. Dunne, Leonardo AlvarezbioRxiv · 10.1101/2021.09.06.459171

Improvements to Geometric Vector Perceptrons for sampling sequences from a known backbone. Treats the trained classifier as an Energy-Based Model and improves median identity from 40.2% to 44.7%; AlphaFold-predicted structures of sampled sequences resemble originals (avg TM-score 0.84).

2021.06Deep learning model for the prediction and classification of protein toxins across all domains of life.Preprint · ConvTOX
Javier Caceres-Delpiano, Roberto Ibañez, Simon Correa, Michael P. Dunne, Pedro Retamal, Leonardo ÁlvarezbioRxiv · 10.1101/2021.06.29.450401

ConvTOX is a CNN that classifies protein toxins across the domains of life: >80% on animal/plant toxins, >50% on bacterial. Generalizes to toxin types (neuro vs. myo) and identifies structural similarity between toxins.

2020.08Deep learning enables the design of functional de novo antimicrobial proteins.Preprint · Antifungal design
Javier Caceres-Delpiano, Roberto Ibañez, Patricio Alegre, Cynthia Sanhueza, Romualdo Paz-Fiblas, Simon Correa, Pedro Retamal, Juan Cristóbal Jiménez, Leonardo ÁlvarezbioRxiv · 10.1101/2020.08.26.266940

A recurrent-neural-network design system produces de novo variants of an antifungal peptide at <50% identity to wild-type. Molecular dynamics and in vitro assays confirm chitin binding and antifungal activity equal to or exceeding the WT peptide.

§ B · Patents
3 filings
2021Biochemical saturation of molecules and its use.PCT 218150602022Antifungal protein composition.US 17/660,9692020Systems and methods for predicting proteins.US 17/753,024