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

Q9SND4_F1_nD1 - ECOD Domain | ECOD

ECOD/Domains/Q9SND4_F1_nD1

Q9SND4_F1_nD1

UID: 003810746

AlphaFold

Range: 91-105,131-180
AlphaFold: AF-Q9SND4
UniProt: Q9SND4 (all domains)
Gene: HEC2

Protein: Transcription factor HEC2 (Basic helix-loop-helix protein 37) (AtbHLH37) (bHLH 37) (Protein HECATE 2) (Transcription factor EN 117) (bHLH transcription factor bHLH037)

3D Structure

Loading viewer...

Related Domains

Browse other domains in bHLH_SAC51 →

Classification

AArchitecturealpha duplicates or obligate multimers(a.8)

XX-groupHLH-like(105)

HH-groupHLH, helix-loop-helix DNA-binding domain(105.1)

TT-groupHLH, helix-loop-helix DNA-binding domain(105.1.1)

FFamilybHLH_SAC51(105.1.1.41)

Pfam Families

PF23173bHLH_SAC51

Transcription factor SAC51 bHLH domain

ClanCL0827bHLH

External Links

AlphaFold DB: Q9SND4 UniProt: Q9SND4

Representative

This domain is classified based on similarity to:

Downloads

Full AlphaFold Structure (PDB)Full AlphaFold Structure (mmCIF)

Domain coordinates: residues 91-105,131-180