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

e3re5A1 - ECOD Domain | ECOD

ECOD/Domains/e3re5A1

e3re5A1

UID: 000423693

PDB

Range: A:13-135
PDB: 3RE5 chain A(all domains)
UniProt: P22629 (all domains)

Molecule: Streptavidin

3D Structure

Loading viewer...

Related Domains

Browse other domains in Avidin →

Classification

AArchitecturebeta barrels(a.1)

XX-groupLipocalins/Streptavidin(9)

HH-groupAvidin/Streptavidin(9.2)

TT-groupAvidin/Streptavidin(9.2.1)

FFamilyAvidin(9.2.1.1)

Ligands

in contact, ≤ 4 Å

Only buffers and crystallization additives.

+ 2 additives (Glycerin, Pentaethylene glycol)

GlycerinGOL
DrugBank DB09462
Pentaethylene glycol1PE

Shown in the structure viewer. Drug annotations from DrugDomain.

Pfam Families

Avidin family

External Links

ECOD PDB View: 3RE5 RCSB PDB: 3RE5 PDBe: 3RE5 UniProt: P22629

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure