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

e4q2kB1 - ECOD Domain | ECOD

ECOD/Domains/e4q2kB1

e4q2kB1

UID: 001316235

PDB

Range: B:1-245
PDB: 4Q2K chain B(all domains)
UniProt: P00766 (all domains)

Molecule: Chymotrypsinogen A (EC 3.4.21.1) [Cleaved into: Chymotrypsin A chain A; Chymotrypsin A chain B; Chymotrypsin A chain C]

3D Structure

Loading viewer...

Related Domains

Browse other domains in Trypsin →

Classification

AArchitecturebeta barrels(a.1)

XX-groupcradle loop barrel(1)

HH-groupRIFT-related(1.1)

TT-groupFMN-binding split barrel 2(1.1.17)

FFamilyTrypsin(1.1.17.1)

Pfam Families

PF00089Trypsin

Trypsin

ClanCL0124Peptidase_PA

External Links

ECOD PDB View: 4Q2K RCSB PDB: 4Q2K PDBe: 4Q2K UniProt: P00766

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure