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

e1k4tA3 - ECOD Domain | ECOD

ECOD/Domains/e1k4tA3

e1k4tA3

UID: 000002812

RepresentativePDB

Range: A:585-640,A:713-765
PDB: 1K4T chain A(all domains)
UniProt: P11387 (all domains)
Gene: TOP1

Molecule: DNA topoisomerase I

3D Structure

Loading viewer...

Related Domains

Browse other domains in Topoisom_I,Topo_C_assoc →

Classification

AArchitecturealpha arrays(a.6)

XX-groupHTH(101)

HH-groupHTH(101.1)

TT-groupDNA breaking-rejoining enzymes(101.1.8)

FFamilyTopoisom_I,Topo_C_assoc(101.1.8.3)

Ligands

in contact, ≤ 4 Å

TopotecanTTC
drugDrugBank DB01030
MERCURY (II) IONHG
metal
2-(1-DIMETHYLAMINOMETHYL-2-HYDROXY-8-HYDROXYMETHYL-9-OXO-9,11-DIHYDRO-INDOLIZINO[1,2-B]QUINOLIN-7-YL)-2-HYDROXY-BUTYRIC ACID

Pfam Families

PF01028Topoisom_I

Eukaryotic DNA topoisomerase I, catalytic core

ClanCL0382DNA-mend

PF14370Topo_C_assoc

C-terminal topoisomerase domain

External Links

ECOD PDB View: 1K4T RCSB PDB: 1K4T PDBe: 1K4T UniProt: P11387

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure

Shown in the structure viewer. Drug annotations from DrugDomain.