31IC | pdb_000031ic

Structure of human excitatory amino acid transporter 3 (EAAT3) in complex with B11 nanobody

PDB DOI: https://doi.org/10.2210/pdb31IC/pdb
EM Map EMD-58427: EMDB EMDataResource

Classification: MEMBRANE PROTEIN
Organism(s): Homo sapiens, Vicugna pacos
Expression System: Spodoptera frugiperda, Escherichia coli MC1061
Mutation(s): Yes

Deposited: 2026-06-05 Released: 2026-07-01
Deposition Author(s): Li, A., Pike, A.C.W., Baronina, A., Rodstrom, K.E.J., Pascoa, T.C., Chi, G., Stefanic, S., Carpenter, E.P., Bullock, A.N., Dong, Y.Y., Sauer, D.B.
Funding Organization(s): Wellcome Trust, Innovative Medicines Initiative

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.50 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Starting Models: experimental
View more details

wwPDB Validation 3D Report Full Report

Validation slider image for 31IC

This is version 1.0 of the entry. See complete history.

Literature

Structure of human excitatory amino acid transporter 3 (EAAT3) in complex with a nanobody

Li, A., Pike, A.C.W., Baronina, A., Rodstrom, K.E.J., Pascoa, T.C., Chi, G., Stefanic, S., Carpenter, E.P., Bullock, A.N., Dong, Y.Y., Sauer, D.B.

To be published.

Macromolecule Content

Total Structure Weight: 177.98 kDa
Atom Count: 10,022
Modeled Residue Count: 1,392
Deposited Residue Count: 1,627
Unique protein chains: 2

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Excitatory amino acid transporter 3	A, B, C	487	Homo sapiens	Mutation(s): 1 Gene Names: SLC1A1, EAAC1, EAAT3, HEAAC1
UniProt & NIH Common Fund Data Resources
Find proteins for P43005 (Homo sapiens) Explore P43005 Go to UniProtKB: P43005
PHAROS: P43005 GTEx: ENSG00000106688
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P43005
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
B11 nanobody	D	166	Vicugna pacos	Mutation(s): 0

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.50 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	3.3.1
MODEL REFINEMENT	PHENIX	1.21.1_5286

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-07-01

Deposition Author(s):

Rodstrom, K.E.J.

Carpenter, E.P.

Funding Organization	Location	Grant Number
Wellcome Trust	United Kingdom	102161/Z/13/Z
Innovative Medicines Initiative	Switzerland	777372
Innovative Medicines Initiative	Switzerland	875510

Revision History (Full details and data files)

Version 1.0: 2026-07-01
Type: Initial release

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.