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

e3i3dB1 - ECOD Domain | ECOD

ECOD/Domains/e3i3dB1

e3i3dB1

UID: 000390664

PDB

Range: B:13-219
PDB: 3I3D chain B(all domains)
UniProt: P00722 (all domains)
Gene: lacZ

Molecule: Beta-galactosidase

3D Structure

Loading viewer...

Related Domains

Browse other domains in Glyco_hydro_2_N →

Classification

AArchitecturebeta sandwiches(a.3)

XX-groupjelly-roll(10)

HH-groupGalactose-binding domain-like(10.32)

TT-groupGalactose-binding domain-like(10.32.1)

FFamilyGlyco_hydro_2_N(10.32.1.9)

Ligands

in contact, ≤ 4 Å

Isopropyl beta-D-thiogalactopyranosideIPT
drugDrugBank DB01862
Magnesium ionMG
metal
Sodium ionNA
metal

Pfam Families

PF02837Glyco_hydro_2_N

Glycosyl hydrolases family 2, sugar binding domain

ClanCL0202GBD

External Links

ECOD PDB View: 3I3D RCSB PDB: 3I3D PDBe: 3I3D UniProt: P00722

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure

+ 1 additive (Dimethyl sulfoxide)

Dimethyl sulfoxideDMS

Shown in the structure viewer. Drug annotations from DrugDomain.