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

e3dqtA1 - ECOD Domain | ECOD

ECOD/Domains/e3dqtA1

e3dqtA1

UID: 000360040

PDB

Range: A:67-482
PDB: 3DQT chain A(all domains)
UniProt: P29473 (all domains)
Gene: NOS3

Molecule: Nitric oxide synthase, endothelial

3D Structure

Loading viewer...

Related Domains

Browse other domains in NO_synthase →

Classification

AArchitecturea+b complex topology(a.14)

XX-groupNitric oxide (NO) synthase oxygenase domain(262)

HH-groupNitric oxide (NO) synthase oxygenase domain(262.1)

TT-groupNitric oxide (NO) synthase oxygenase domain(262.1.1)

FFamilyNO_synthase(262.1.1.1)

Ligands

in contact, ≤ 4 Å

SapropterinH4B
drugDrugBank DB00360
FerrohemeHEM
drugDrugBank DB18267
N-{(3R,4S)-4-[(6-amino-4-methylpyridin-2-yl)methyl]pyrrolidin-3-yl}-N'-(3-chlorobenzyl)ethane-1,2-diamine

Pfam Families

PF02898NO_synthase

Nitric oxide synthase, oxygenase domain

External Links

ECOD PDB View: 3DQT RCSB PDB: 3DQT PDBe: 3DQT UniProt: P29473

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure

drugDrugBank DB08019

Zinc ionZN

metal

+ 3 additives (Acetate, Glycerin, Cacodylate ion)

AcetateACT
DrugBank DB14511
GlycerinGOL
DrugBank DB09462
Cacodylate ionCAC

Shown in the structure viewer. Drug annotations from DrugDomain.