26QI | pdb_000026qi

Cryo-EM structure of human UGCG bound to Ibiglustat

PDB DOI: https://doi.org/10.2210/pdb26QI/pdb
EM Map EMD-80826: EMDB EMDataResource

Classification: TRANSFERASE
Organism(s): Homo sapiens
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2026-05-11 Released: 2026-09-02
Deposition Author(s): Wu, C., Jin, S., Xu, J., Wang, J.J., Guo, X., Li, Y., Cao, Z., Jiang, M., Yuan, Q., Hu, W., Li, C., Xu, Y., Wang, M.W., Jiang, Y., Xu, H.E.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.43 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 26QI

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

Literature

Primate-specific regulation of the human glycosphingolipid gatekeeper UGCG

Wu, C., Jin, S., Xu, J., Wang, J.J., Guo, X., Li, Y., Cao, Z., Jiang, M., Yuan, Q., Hu, W., Li, C., Xu, Y., Wang, M.W., Jiang, Y., Xu, H.E.

(2026) Nature

DOI: https://doi.org/10.1038/s41586-026-10927-4

Macromolecule Content

Total Structure Weight: 45.29 kDa
Atom Count: 3,130
Modeled Residue Count: 388
Deposited Residue Count: 394
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ceramide glucosyltransferase	A	394	Homo sapiens	Mutation(s): 0 Gene Names: UGCG EC: 2.4.1.80
UniProt & NIH Common Fund Data Resources
Find proteins for Q16739 (Homo sapiens) Explore Q16739 Go to UniProtKB: Q16739
PHAROS: Q16739 GTEx: ENSG00000148154
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q16739
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
KYF (Subject of Investigation/LOI) Query on KYF Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	(1R,3S,4R)-1-azabicyclo[2.2.2]octan-3-yl {2-[2-(4-fluorophenyl)-1,3-thiazol-4-yl]propan-2-yl}carbamate C₂₀ H₂₄ F N₃ O₂ S YFHRCLAKZBDRHN-MRXNPFEDSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.43 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.17.1_3660
RECONSTRUCTION	cryoSPARC

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-09-02

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History (Full details and data files)

Version 1.0: 2026-09-02
Type: Initial release

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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.