The transmembrane interface atlas

Explore the
membrane.
Find the interface.

Residue-level interface predictions for reviewed UniProt alpha-helical transmembrane proteins.

A new perspective on protein interactions
Explore a protein
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ADRB2 P07550

Beta-2 adrenergic receptor

Human · 413 aa · 7 transmembrane helices
Open record
UniProt topology
80,619Protein records
70,247Unique sequences
33,722,948Residue predictions
Release 130 Aug 2026Release details

A place to start

Explore a membrane question.

Build your own query

From sequence to insight

Built for residue-level exploration.

Chorus stands for Cross-pLM Hierarchical Optimization for Residue-level membrane Understanding and Site prediction.

Chorus combines six selected residue learners across three protein language models. Explore each protein’s interface probabilities along its sequence and on mapped experimental structures.

Prediction
Partner-independent PPI interface sites
Decision threshold
0.554184 · SI30 validation positive-F1
Explore an example record

Work with the data

Bring predictions into your workflow.

Download a protein’s predictions as TSV, retrieve residue ranges as JSON, or use the batch API for a small set of proteins.

  • Up to 10 accessions per batch
  • Up to 50,000 residues per batch response
  • Whole-atlas download is not currently available
Batch API example

Send a JSON request with the accessions you want to retrieve:

POST /api/v1/batch
Content-Type: application/json

{"accessions":["P07550","P29972"]}

Current release

Chorus DB · Release 1

Reviewed UniProt alpha-helical transmembrane proteins, with per-record inference scope and prediction provenance.

Exact-length records
80,062
Windowed records
557
Including length-OOD records
189
Release metadata