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
Privacy

Resources

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

© 2014-2026 Grishin Lab / HHMI / UTSW

e4xb9A1 - ECOD Domain | ECOD

ECOD/Domains/e4xb9A1

e4xb9A1

UID: 001684243

PDB

Range: A:2-286
PDB: 4XB9 chain A(all domains)
UniProt: Q5KW80 (all domains)
Gene: GK2771

Molecule: Ribonuleotide reductase small subunit

3D Structure

Loading viewer...

Related Domains

Browse other domains in Ribonuc_red_sm →

Classification

AArchitecturealpha bundles(a.7)

XX-groupFerritin/Heme oxygenase/4-helical cytokines(150)

HH-groupFerritin/Heme oxygenase(150.1)

TT-groupHeme oxygenase/Ribonucleotide reductase(150.1.2)

FFamilyRibonuc_red_sm(150.1.2.1)

Ligands

in contact, ≤ 4 Å

Palmitic AcidPLM
drugDrugBank DB03796
FE (III) IONFE
metal

Shown in the structure viewer. Drug annotations from DrugDomain.

Pfam Families

PF00268Ribonuc_red_sm

Ribonucleotide reductase, small chain

ClanCL0044Ferritin

External Links

ECOD PDB View: 4XB9 RCSB PDB: 4XB9 PDBe: 4XB9 UniProt: Q5KW80

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure