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

e3a81A1 - ECOD Domain | ECOD

ECOD/Domains/e3a81A1

e3a81A1

UID: 000401457

PDB

Range: A:19-241
PDB: 3A81 chain A(all domains)
UniProt: P00760 (all domains)
Gene: PRSS1

Molecule: Cationic trypsin

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)

Ligands

in contact, ≤ 4 Å

Calcium ionCA
metal
(E)-4-((2-nicotinoylhydrazono)methyl)benzimidamideH06

+ 2 additives (Glycerin, Sulfate ion)

GlycerinGOL

Pfam Families

PF00089Trypsin

Trypsin

ClanCL0124Peptidase_PA

External Links

ECOD PDB View: 3A81 RCSB PDB: 3A81 PDBe: 3A81 UniProt: P00760

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure

DrugBank DB09462

Sulfate ionSO4

DrugBank DB14546

Shown in the structure viewer. Drug annotations from DrugDomain.