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

e4kgsA1 - ECOD Domain | ECOD

ECOD/Domains/e4kgsA1

e4kgsA1

UID: 001096163

PDB

Range: A:1-57
PDB: 4KGS chain A(all domains)
UniProt: P06654 (all domains)
Gene: spg

Molecule: Streptococcal Protein GB1 Backbone Modified Variant: beta-3-Val21, beta-3-Asp40

3D Structure

Loading viewer...

Related Domains

Browse other domains in IgG_binding_B →

Classification

AArchitecturea+b two layers(a.11)

XX-groupbeta-Grasp(221)

HH-groupImmunoglobulin-binding domains(221.3)

TT-groupImmunoglobulin-binding domains(221.3.1)

FFamilyIgG_binding_B(221.3.1.1)

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

PF01378IgG_binding_B

B domain

ClanCL0072Ubiquitin

External Links

ECOD PDB View: 4KGS RCSB PDB: 4KGS PDBe: 4KGS UniProt: P06654

Downloads

Download Domain PDB Download Domain FASTA Full PDB Structure