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

e3h1kC2 - ECOD Domain | ECOD

ECOD/Domains/e3h1kC2

e3h1kC2

UID: 000362166

PDB

Range: C:1-261
PDB: 3H1K chain C(all domains)
UniProt: P18946 (all domains)
Gene: MT-CYB

Molecule: Cytochrome b (Complex III subunit 3) (Complex III subunit III) (Cytochrome b-c1 complex subunit 3) (Ubiquinol-cytochrome-c reductase complex cytochrome b subunit)

3D Structure

Loading viewer...

Related Domains

Browse other domains in Cytochrome_B, Cytochrom_B_N_2 →

Classification

AArchitecturealpha bundles(a.7)

XX-groupTransmembrane heme-binding four-helical bundle(5069)

HH-groupTransmembrane heme-binding four-helical bundle(5069.1)

TT-groupTransmembrane di-heme cytochromes(5069.1.1)

FFamilyCytochrome_B, Cytochrom_B_N_2(5069.1.1.54)

Pfam Families

PF00033Cytochrome_B

Cytochrome b/b6/petB

ClanCL03282heme_cytochrom

PF13631Cytochrom_B_N_2

Cytochrome b(N-terminal)/b6/petB

ClanCL03282heme_cytochrom

External Links

ECOD PDB View: 3H1K RCSB PDB: 3H1K PDBe: 3H1K UniProt: P18946

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure