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

e3qq3D2 - ECOD Domain | ECOD

ECOD/Domains/e3qq3D2

e3qq3D2

UID: 000436950

PDB

Range: D:1-181
PDB: 3QQ3 chain D(all domains)
UniProt: O19244 (all domains)
Gene: PD1

Molecule: MHC class I antigen

3D Structure

Loading viewer...

Related Domains

Browse other domains in MHC_I →

Classification

AArchitecturea+b two layers(a.11)

XX-groupMHC antigen-recognition domain(233)

HH-groupMHC antigen-recognition domain(233.1)

TT-groupMHC antigen-recognition domain(233.1.1)

FFamilyMHC_I(233.1.1.1)

Pfam Families

Class I Histocompatibility antigen, domains alpha 1 and 2

ClanCL0343MHC

External Links

ECOD PDB View: 3QQ3 RCSB PDB: 3QQ3 PDBe: 3QQ3 UniProt: O19244

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure