ECODEvolutionary Classification of Protein Domains

Home Browse Search Download Help

About ECOD

ECOD (Evolutionary Classification of Protein Domains) is a hierarchical classification of protein domains based on evolutionary relationships. It combines automated sequence and structure analysis with manual curation.

Quick Links

Browse Classification
Search
Download Data
Documentation

Resources

Grishin Lab
UT Southwestern
RCSB PDB
AlphaFold DB
ecod.database@gmail.com

© 2014-2026 Grishin Lab / HHMI / UTSW

Q4U3K9_F1_nD2 - ECOD Domain | ECOD

ECOD/Domains/Q4U3K9_F1_nD2

Q4U3K9_F1_nD2

UID: 003894452

AlphaFold

Range: 76-175,206-270
AlphaFold: AF-Q4U3K9
UniProt: Q4U3K9 (all domains)
Gene: ahr1b

Protein: Aryl hydrocarbon receptor

3D Structure

Loading viewer...

Related Domains

Browse other domains in PAS →

Classification

AArchitecturea+b three layers(a.12)

XX-groupProfilin-like(223)

HH-groupsensor domains(223.1)

TT-groupsensor domains(223.1.1)

FFamilyPAS(223.1.1.2)

Pfam Families

PAS fold

ClanCL0183PAS_Fold

External Links

AlphaFold DB: Q4U3K9 UniProt: Q4U3K9

Representative

This domain is classified based on similarity to:

Downloads

Download Domain PDB Download Domain FASTA Full AlphaFold Structure (PDB)Full AlphaFold Structure (mmCIF)

Domain coordinates: residues 76-175,206-270