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

e4eqnA1 - ECOD Domain | ECOD

ECOD/Domains/e4eqnA1

e4eqnA1

UID: 000149758

PDB

Range: A:1-141
PDB: 4EQN chain A(all domains)
UniProt: P00644 (all domains)
Gene: nuc

Molecule: Thermonuclease (TNase) (EC 3.1.31.1) (Micrococcal nuclease) (Staphylococcal nuclease) [Cleaved into: Nuclease B; Nuclease A]

3D Structure

Loading viewer...

Related Domains

Browse other domains in SNase →

Classification

AArchitecturebeta barrels(a.1)

XX-groupOB-fold(2)

HH-groupStaphylococcal nuclease(2.6)

TT-groupStaphylococcal nuclease(2.6.1)

FFamilySNase(2.6.1.1)

Pfam Families

Staphylococcal nuclease homologue

ClanCL0010SH3

External Links

ECOD PDB View: 4EQN RCSB PDB: 4EQN PDBe: 4EQN UniProt: P00644

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure