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

e3k9cB3 - ECOD Domain | ECOD

ECOD/Domains/e3k9cB3

e3k9cB3

UID: 001505584

PDB

Range: B:68-168,B:298-338
PDB: 3K9C chain B(all domains)
UniProt: Q0S5Y9 (all domains)
Gene: RHA1_ro05266

Molecule: Transcriptional regulator, LacI family protein

3D Structure

Loading viewer...

Related Domains

Browse other domains in Peripla_BP_1 →

Classification

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

XX-groupFlavodoxin-like(2007)

HH-groupClass I glutamine amidotransferase-like(2007.1)

TT-groupPeriplasmic binding protein-like I(2007.1.2)

FFamilyPeripla_BP_1(2007.1.2.2)

Ligands

in contact, ≤ 4 Å

Only buffers and crystallization additives.

+ 1 additive (Glycerin)

GlycerinGOL
DrugBank DB09462

Shown in the structure viewer. Drug annotations from DrugDomain.

Pfam Families

PF00532Peripla_BP_1

Periplasmic binding proteins and sugar binding domain of LacI family

ClanCL0144Periplas_BP

External Links

ECOD PDB View: 3K9C RCSB PDB: 3K9C PDBe: 3K9C UniProt: Q0S5Y9

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure