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

e1px3B4 - ECOD Domain | ECOD

ECOD/Domains/e1px3B4

e1px3B4

UID: 000042375

PDB

Range: B:731-1023
PDB: 1PX3 chain B(all domains)
UniProt: P00722 (all domains)
Gene: lacZ

Molecule: Beta-galactosidase (Beta-gal) (EC 3.2.1.23) (Lactase)

3D Structure

Loading viewer...

Related Domains

Browse other domains in Bgal_small_N →

Classification

AArchitecturebeta sandwiches(a.3)

XX-groupGlycosyl hydrolase domain-like(12)

HH-groupsupersandwich(12.3)

TT-groupsupersandwich(12.3.1)

FFamilyBgal_small_N(12.3.1.6)

Pfam Families

PF02929Bgal_small_N

Beta galactosidase small chain

ClanCL0103Gal_mutarotase

External Links

ECOD PDB View: 1PX3 RCSB PDB: 1PX3 PDBe: 1PX3 UniProt: P00722

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure