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

e4u9iS1 - ECOD Domain | ECOD

ECOD/Domains/e4u9iS1

e4u9iS1

UID: 001490120

PDB

Range: S:184-267
PDB: 4U9I chain S(all domains)
UniProt: P21853 (all domains)
Gene: hydA

Molecule: Periplasmic [NiFe] hydrogenase small subunit (EC 1.12.2.1) (NiFe hydrogenlyase small chain)

3D Structure

Loading viewer...

Related Domains

Browse other domains in NiFe_hyd_SSU_C →

Classification

AArchitecturefew secondary structure elements(a.19)

XX-groupFe-S cluster-binding domain in nickel-iron hydrogenase small subunit(4024)

HH-groupFe-S cluster-binding domain in nickel-iron hydrogenase small subunit(4024.1)

TT-groupFe-S cluster-binding domain in nickel-iron hydrogenase small subunit(4024.1.1)

FFamilyNiFe_hyd_SSU_C(4024.1.1.1)

Pfam Families

PF14720NiFe_hyd_SSU_C

NiFe/NiFeSe hydrogenase small subunit C-terminal

External Links

ECOD PDB View: 4U9I RCSB PDB: 4U9I PDBe: 4U9I UniProt: P21853

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure