9JX4 | pdb_00009jx4

Crystal Structure of an aldehyde-alcohol dehydrogenase in complex with metformin

PDB DOI: https://doi.org/10.2210/pdb9JX4/pdb

Classification: OXIDOREDUCTASE
Organism(s): Anaerobutyricum hallii
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2024-10-11 Released: 2026-04-15
Deposition Author(s): Xia, Y., Yao, D., Zhao, Y., Cao, Y.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free:
0.266 (Depositor), 0.267 (DCC)
R-Value Work:
0.213 (Depositor), 0.213 (DCC)
R-Value Observed:
0.217 (Depositor)

Starting Model: in silico
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Ligand Structure Quality Assessment

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

Literature

Crystal Structure of an aldehyde-alcohol dehydrogenase in complex with metformin

Xia, Y., Yao, D., Zhao, Y., Cao, Y.

To be published.

Macromolecule Content

Total Structure Weight: 41.18 kDa
Atom Count: 2,978
Modeled Residue Count: 366
Deposited Residue Count: 374
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aldehyde-alcohol dehydrogenase	A	374	Anaerobutyricum hallii	Mutation(s): 0 Gene Names: adhE_1, ERS852450_01078
UniProt
Find proteins for A0A174BVF5 (Anaerobutyricum hallii) Explore A0A174BVF5 Go to UniProtKB: A0A174BVF5
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	A0A174BVF5
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
MF8 (Subject of Investigation/LOI) Query on MF8 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]	Metformin C₄ H₁₁ N₅ XZWYZXLIPXDOLR-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]
FE Query on FE Download:Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A] mmCIF format, chain C [auth A]	C [auth A]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Interactions & Density Focus chain C [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free: 0.266 (Depositor), 0.267 (DCC)
R-Value Work: 0.213 (Depositor), 0.213 (DCC)
R-Value Observed: 0.217 (Depositor)

Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 98.51	α = 90
b = 98.51	β = 90
c = 99.327	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
xia2	data reduction
PHENIX	phasing

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-04-15

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	82072468

Revision History (Full details and data files)

Version 1.0: 2026-04-15
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.