9GRB | pdb_00009grb

Crystal structure of mouse Carboxylesterase 2b (Ces2b)

PDB DOI: https://doi.org/10.2210/pdb9GRB/pdb

Classification: HYDROLASE
Organism(s): Mus musculus
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2024-09-11 Released: 2025-09-24
Deposition Author(s): Rammer, L., Eisner, H., Sagmeister, T., Oberer, M.
Funding Organization(s): Austrian Science Fund

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.55 Å
R-Value Free:
0.205 (Depositor), 0.201 (DCC)
R-Value Work:
0.171 (Depositor)

Starting Model: experimental
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Ligand Structure Quality Assessment

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Literature

Crystal structure of mouse Carboxylesterase 2 (Ces2b)

Rammer, L., Eisner, H., Sagmeister, T., Riegler-Berket, L., Rodriguez Gamez, C., Chalhoub, G., Liesinger, L., Birner-Gruenberger, R., Haemmerle, G., Schoiswohl, G., Pavkov-Keller, T., Oberer, M.

To be published.

Macromolecule Content

Total Structure Weight: 233.62 kDa
Atom Count: 16,874
Modeled Residue Count: 2,077
Deposited Residue Count: 2,092
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carboxylic ester hydrolase	A [auth D], B [auth A], C [auth B], D [auth C]	523	Mus musculus	Mutation(s): 0 Gene Names: Ces2b, BC015286 EC: 3.1.1
UniProt
Find proteins for Q6PDB7 (Mus musculus) Explore Q6PDB7 Go to UniProtKB: Q6PDB7
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q6PDB7
Sequence Annotations Expand
Reference Sequence

Oligosaccharides

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose	E [auth G], F [auth E]	2		N/A	Interactions Focus chain E [auth G] Focus chain F [auth E] Interactions & Density Focus chain E [auth G] Focus chain F [auth E]
Glycosylation Resources
GlyTouCan: G86851RC GlyCosmos: G86851RC GlyGen: G86851RC

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAG Query on NAG Download:Ideal Coordinates CCD File SDF format, chain G [auth C] MOL2 format, chain G [auth C] mmCIF format, chain G [auth C]	G [auth C]	2-acetamido-2-deoxy-beta-D-glucopyranose C₈ H₁₅ N O₆ OVRNDRQMDRJTHS-FMDGEEDCSA-N		Interactions Focus chain G [auth C] Interactions & Density Focus chain G [auth C]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.55 Å
R-Value Free: 0.205 (Depositor), 0.201 (DCC)
R-Value Work: 0.171 (Depositor)

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 180.75	α = 90
b = 109.801	β = 92.886
c = 135.435	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
MOLREP	phasing

Structure Validation

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Ligand Structure Quality Assessment

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Entry History

& Funding Information

Deposition Data

Released Date: 2025-09-24

Deposition Author(s):

Funding Organization	Location	Grant Number
Austrian Science Fund	Austria	DOI: 10.55776/DOC50
Austrian Science Fund	Austria	DOI: 10.55776/F73

Revision History (Full details and data files)

Version 1.0: 2025-09-24
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.