Illustration of Two Proteins Connected Together

Astra AI Models: End-to-End Protein Intelligence

The Astra Prediction Suite is Orbion's family of AI models that analyze protein sequences to predict post-translational modifications (39+ types), ligand binding sites (2M+ ligands), and functional profiles (10+ annotation tasks). Used by pharma, biotech, and research labs to accelerate drug discovery and protein engineering.

Illustration of a Happy Protein with Its PTMs

AstraPTM2: A Context-Aware PTM Prediction Model for Broad-Spectrum PTMs

Illustration of a Protein in a Wet Lab Suit Dancing with a Molecule
Illustration of a Protein in a Wet Lab Suit Dancing with a Molecule

AstraBIND: Fast, Accurate Ligand Binding Site Prediction Across a 2M+ Ligand Panel

Illustration of a Protein with Its Properties Around It

AstraROLE2 & AstraSUIT2: Multi-Task Annotation Models for Functional Profiling of Proteins

Why Astra?

Astra prediction models turn a raw sequence into an experiment-ready brief in seconds — no stitching tools, no juggling formats, no long waiting times, just one call for all of the answers you need; giving you full understanding and lab protocols to have successful experiments.

Illustration of Residue to Role Insight - Magnifying Glass Showing Details
Illustration of Residue to Role Insight - Magnifying Glass Showing Details
Illustration of Residue to Role Insight - Magnifying Glass Showing Details

Residue-to-Role Insight

From 39 PTMs to binding sites, AstraPTM2, AstraROLE2 & AstraSUIT2, and AstraBIND cover the full span of protein behaviour—site-specific chemistry, enzyme class, pathways, localisation, binding sites, ligands, and more.

Illustration of Complete Insights with One Click
Illustration of Complete Insights with One Click
Illustration of Complete Insights with One Click

One Click, Complete Insights

No more juggling 10 different tools. Astra delivers PTMs, binding sites, and functional annotations in a single pass, streamlining design workflows and keeping focus on what matters—your protein, not infrastructure.

Illustration of Built to GRow - a Plant Growing
Illustration of Built to GRow - a Plant Growing
Illustration of Built to GRow - a Plant Growing

Built to Grow

As new PTMs, ligands, and functional categories emerge, Astra expands with your research. The suite keeps growing, ensuring your predictions stay current as science advances.

See Astra models in action.

Curious how Astra models help improving the experiment success rates? Book a demo, and let us showcase you how to harness Astra models' capabilities for your research projects.