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

e9qnzA1 - ECOD Domain | ECOD

ECOD/Domains/e9qnzA1

e9qnzA1

UID: 004918037

PDB

Range: A:10-134
PDB: 9QNZ chain A(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

5-[(3~{a}~{S},4~{S},6~{a}~{R})-2-oxidanylidene-1,3,3~{a},4,6,6~{a}-hexahydrothieno[3,4-d]imidazol-4-yl]-~{N}-(3-sulfanylphenyl)pentanamideA1I7Y

+ 1 additive (Acetate ion)

Acetate ionACT

Shown in the structure viewer.

Pfam Families

Avidin family

External Links

ECOD PDB View: 9QNZ RCSB PDB: 9QNZ PDBe: 9QNZ

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure