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

e1q90D1 - ECOD Domain | ECOD

ECOD/Domains/e1q90D1

e1q90D1

UID: 000003579

RepresentativePDB

Range: D:4-159
PDB: 1Q90 chain D(all domains)
UniProt: P23230 (all domains)
Gene: petD

Molecule: Cytochrome b6-f complex subunit 4

3D Structure

Loading viewer...

Related Domains

Browse other domains in Cytochrom_B_C →

Classification

AArchitecturealpha bundles(a.7)

XX-groupa domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)(5068)

HH-groupa domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)(5068.1)

TT-groupa domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)(5068.1.1)

FFamilyCytochrom_B_C(5068.1.1.1)

Ligands

in contact, ≤ 4 Å

Beta caroteneBCR
drugDrugBank DB06755
Chlorophyll ACLA
drugDrugBank DB02133within 5 Å only

Pfam Families

PF00032Cytochrom_B_C

Cytochrome b(C-terminal)/b6/petD

External Links

ECOD PDB View: 1Q90 RCSB PDB: 1Q90 PDBe: 1Q90 UniProt: P23230

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure

EicosaneLFA

1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDELMG

1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROLSQD

8-HYDROXY-5,7-DIMETHOXY-3-METHYL-2-TRIDECYL-4H-CHROMEN-4-ONETDS

Shown in the structure viewer. Drug annotations from DrugDomain.