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

e2nqiA1 - ECOD Domain | ECOD

ECOD/Domains/e2nqiA1

e2nqiA1

UID: 000082572

PDB

Range: A:33-354
PDB: 2NQI chain A(all domains)
UniProt: P97571 (all domains)
Gene: Capn1

Molecule: Calpain-1 catalytic subunit

3D Structure

Loading viewer...

Related Domains

Browse other domains in Peptidase_C2 →

Classification

AArchitecturea+b complex topology(a.14)

XX-groupCysteine proteinases-like(219)

HH-groupCysteine proteinases(219.1)

TT-groupCysteine proteinases(219.1.1)

FFamilyPeptidase_C2(219.1.1.4)

Ligands

in contact, ≤ 4 Å

Calcium ionCA
metal
N~2~-[(2S)-2-{[(2R)-4-ETHOXY-2-HYDROXY-4-OXOBUTANOYL]AMINO}PENT-4-ENOYL]-L-ARGINYL-L-TRYPTOPHANAMIDENQI

Shown in the structure viewer. Drug annotations from DrugDomain.

Pfam Families

PF00648Peptidase_C2

Calpain family cysteine protease

ClanCL0125Peptidase_CA

External Links

ECOD PDB View: 2NQI RCSB PDB: 2NQI PDBe: 2NQI UniProt: P97571

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure