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

e3fl9H1 - ECOD Domain | ECOD

ECOD/Domains/e3fl9H1

e3fl9H1

UID: 000361784

PDB

Range: H:1-166
PDB: 3FL9 chain H(all domains)
UniProt: Q81R22 (all domains)
Gene: dfrA

Molecule: dihydrofolate reductase (DHFR)

3D Structure

Loading viewer...

Related Domains

Browse other domains in DHFR_1 →

Classification

AArchitecturea/b three-layered sandwiches(a.17)

XX-groupDihydrofolate reductases(7501)

HH-groupDihydrofolate reductases(7501.1)

TT-groupDihydrofolate reductases(7501.1.1)

FFamilyDHFR_1(7501.1.1.1)

Ligands

in contact, ≤ 4 Å

TrimethoprimTOP
drugDrugBank DB00440
Calcium ionCA
metal

Shown in the structure viewer. Drug annotations from DrugDomain.

Pfam Families

Dihydrofolate reductase

ClanCL0387DHFred

External Links

ECOD PDB View: 3FL9 RCSB PDB: 3FL9 PDBe: 3FL9 UniProt: Q81R22

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure