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The Structome Project

Exploring the protein structure landscape for deep evolutionary signals. A suite of tools for structural phylogenetics, homology detection, and molecular evolution.

Educational resource

Structome Playground

Interactive modules for building intuition about distance-based structural phylogenetics, including Module 4: The Resolution Limit (Duplicate Monophyly Criterion).

Visit →
Conference 2026

APSPM 2026 — Brisbane, Australia

SMBE Australasian Protein Structural Phylogenetics Meeting. Thank you to all who attended.

Conference site →
Featured publication

Know Your Alphabet: Conformational Noise, Latent-Space Encodings, and the Future of Structural Phylogenetics

Quantifies conformational noise in 3Di and TEA structural alphabets using a new NNI metric and RF variance framework. bioRxiv, May 2026.

Read paper →
Distance-based methods
Structome-TM
distanceserver

Local similarity searches to identify homologs missed by global alignment. Accepts sequences with real-time structure prediction.

Structome-Q
distanceserver

Rapid assembly of structural-neighbor datasets from a single query using global structural similarity.

Structome-DeepScore
distancein dev

Embedding-based pairwise distances for structural phylogenetics in high-dimensional space.

Structome-DeepRoots
distancein dev

Protein language models and 3D structure to infer ancient protein evolutionary relationships.

Character-based methods
Structome-AlignViewer
characterserver

Visualize and analyze structural alignments derived from character-based phylogenetic methods.

NoisyAlphabet
characterserver

Quantifies conformational noise in structural alphabets (3Di, TEA) for phylogenetic inference using the NNI metric and RF variance framework.

HMMStruct
characterserver

Predicts SCOP, CATH, and ECOD structural classifications using structural profile HMMs.

HMMology3D
characterin dev

Profile HMM-based structural homolog search using 3D coordinate information.

Databases & Resources
StructomeDB
databaseserver

Structome-wide pairwise comparison database of 104 million protein chain pairs, classified by structural and sequence similarity across 61,631 representative PDB chains.

BioSig Lab · University of Queensland

The Structome Project

Exploring the protein structure landscape for deep evolutionary signals. A milestone timeline of tools, methods, and publications.

Educational resource

Structome Playground

Interactive modules for building intuition about distance-based structural phylogenetics, including Module 4: The Resolution Limit (Duplicate Monophyly Criterion).

Visit →
Conference 2026

APSPM 2026 — Brisbane, Australia

SMBE Australasian Protein Structural Phylogenetics Meeting. Thank you to all who attended.

Conference site →
Featured publication

Know Your Alphabet: Conformational Noise, Latent-Space Encodings, and the Future of Structural Phylogenetics

Quantifies conformational noise in 3Di and TEA structural alphabets using a new NNI metric and RF variance framework. bioRxiv, May 2026.

Read paper →
distance-based character-based database web server paper / preprint in development featured

The Duplicate Monophyly Criterion

distancepreprint

An empirical approach to bootstrapping distance-based structural phylogenies using synthetic taxon duplicates as internal calibration controls.

Structome-TM

distanceserverpublished

Local similarity-based homolog identification with real-time structure prediction from input sequences.

Structome-AlignViewer

characterserverpublished

Visualization and analysis of structural alignments from character-based phylogenetic pipelines.

StructomeDB

databaseserver

Structome-wide pairwise comparison database of 104 million protein chain pairs across 61,631 representative PDB chains, classified by structural and sequence similarity.

2025

Review: Protein Structural Phylogenetics

review

A comprehensive review on using protein structure for inferring deep evolutionary histories. Published in Genome Biology and Evolution.

2024

HMMStruct

characterserverpreprint

Structural classification prediction (SCOP, CATH, ECOD) via profile HMMs derived from 3D structure.

2023

Structome-Q

distanceserverpublished

Rapid structural-neighbor dataset assembly using global structural similarity from a single query protein.

in dev

Structome-DeepRoots

distancein dev

Protein language models and 3D structure for inferring ancient protein evolutionary relationships.

Structome-DeepScore

distancein dev

Embedding-based pairwise distances for structural phylogenetics in high-dimensional latent space.

HMMology3D

characterin dev

Profile HMM-based structural homolog search using information extracted from 3D coordinates.

BioSig Lab · University of Queensland

The Structome
Project

Exploring the protein structure landscape for deep evolutionary signals — structural similarity, HMM profiling, and language model embeddings to resolve deep evolutionary histories.

10
tools & resources
Educational resource

Structome Playground

Interactive modules for building intuition about distance-based structural phylogenetics, including Module 4: The Resolution Limit (Duplicate Monophyly Criterion).

Visit →
Conference 2026

APSPM 2026 — Brisbane, Australia

SMBE Australasian Protein Structural Phylogenetics Meeting. Thank you to all who attended.

Conference site →
Featured publication

Know Your Alphabet: Conformational Noise, Latent-Space Encodings, and the Future of Structural Phylogenetics

Quantifies conformational noise in 3Di and TEA structural alphabets using a new NNI metric and RF variance framework. bioRxiv, May 2026.

Read paper →

Distance-based methods

structural similarity · embeddings

Structome-TM

Local similarity searches to identify homologs often missed by global alignment. Expands Structome-Q by accepting protein sequences and predicting structures in real-time for immediate structural neighborhood analysis.

distanceserverpublished 2026

Structome-Q

Global structural similarity for rapid structural-neighbor dataset assembly.

distanceserver

Structome-DeepScore

Embedding-based pairwise distances for structural phylogenetics.

distancein dev

Structome-DeepRoots

Protein language models and 3D structure for inferring ancient protein evolutionary relationships.

distancein dev

Character-based methods

HMMs · structural alignments · structural alphabets

NoisyAlphabet

Quantifies conformational noise in structural alphabets used for phylogenetic inference. Introduces the NNI metric and RF variance framework for principled comparison of coordinate-explicit alphabets (3Di) versus sequence-derived structure-aware alphabets (TEA). Companion to the Know Your Alphabet study.

characterserverpreprint May 2026

Structome-AlignViewer

Visualize and analyze structural alignments derived from character-based phylogenetic methods. Built to complement the character-based pipeline end-to-end.

characterserverpublished 2026

HMMStruct

SCOP, CATH, ECOD structural classification via structural profile HMMs.

characterserver

HMMology3D

Profile HMM-based structural homolog search using 3D coordinate information.

characterin dev

Databases & Resources

pre-computed · pairwise · structome-wide

StructomeDB

A pre-computed database of 104,528,817 unique pairwise comparisons across 61,631 UniProt-linked representative protein chains from the full experimental PDB. Each pair is classified on a two-axis landscape of structural similarity (Foldseek TM-score) and sequence similarity (BLASTP), with full feature vectors including rotation matrices for instantaneous structural superimposition.

database server