9Y8Y | pdb_00009y8y

CRYSTAL STRUCTURE OF SACCHAROMYCES CEREVISIAE ACETOHYDROXYACID SYNTHASE IN COMPLEX WITH METHYL ACETYL PHOSPHONATE

PDB DOI: https://doi.org/10.2210/pdb9Y8Y/pdb

Classification: TRANSFERASE
Organism(s): Saccharomyces cerevisiae
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2025-09-11 Released: 2026-09-16
Deposition Author(s): Lonhienne, T., Lin, X., Guddat, W.L.
Funding Organization(s): National Health and Medical Research Council (NHMRC, Australia)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.22 Å
R-Value Free:
0.209 (Depositor), 0.207 (DCC)
R-Value Work:
0.176 (Depositor), 0.175 (DCC)
R-Value Observed:
0.177 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

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

Literature

CRYSTAL STRUCTURE OF SACCHAROMYCES CEREVISIAE ACETOHYDROXYACID SYNTHASE IN COMPLEX WITH METHYL ACETYL PHOSPHONATE

Lonhienne, T., Lin, X., Guddat, W.L.

To be published.

Macromolecule Content

Total Structure Weight: 150.02 kDa
Atom Count: 9,053
Modeled Residue Count: 1,099
Deposited Residue Count: 1,354
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetolactate synthase catalytic subunit, mitochondrial	A, B	677	Saccharomyces cerevisiae	Mutation(s): 0 Gene Names: ILV2, SMR1, YMR108W, YM9718.07 EC: 2.2.1.6
UniProt
Find proteins for P07342 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P07342 Go to UniProtKB: P07342
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P07342
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
FAD (Subject of Investigation/LOI) Query on FAD Download:Ideal Coordinates CCD File SDF format, chain I [auth B] SDF format, chain E [auth A] MOL2 format, chain I [auth B] MOL2 format, chain E [auth A] mmCIF format, chain I [auth B] mmCIF format, chain E [auth A]	E [auth A], I [auth B]	FLAVIN-ADENINE DINUCLEOTIDE C₂₇ H₃₃ N₉ O₁₅ P₂ VWWQXMAJTJZDQX-UYBVJOGSSA-N		Interactions Focus chain E [auth A] Focus chain I [auth B] Interactions & Density Focus chain E [auth A] Focus chain I [auth B]
TDK (Subject of Investigation/LOI) Query on TDK Download:Ideal Coordinates CCD File SDF format, chain J [auth B] SDF format, chain F [auth A] MOL2 format, chain J [auth B] MOL2 format, chain F [auth A] mmCIF format, chain J [auth B] mmCIF format, chain F [auth A]	F [auth A], J [auth B]	3-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-2-{(1S)-1-HYDROXY-1-[(R)-HYDROXY(METHOXY)PHOSPHORYL]ETHYL}-5-(2-{[(S)-HYDROXY(PHOSPHONOOXY)PHOSPHORYL]OXY}ETHYL)-4-METHYL-1,3-THIAZOL-3-IUM C₁₅ H₂₆ N₄ O₁₁ P₃ S ILGXNMPRCMTAOK-HNNXBMFYSA-O		Interactions Focus chain F [auth A] Focus chain J [auth B] Interactions & Density Focus chain F [auth A] Focus chain J [auth B]
K Query on K Download:Ideal Coordinates CCD File SDF format, chain H [auth B] SDF format, chain C [auth A] MOL2 format, chain H [auth B] MOL2 format, chain C [auth A] mmCIF format, chain H [auth B] mmCIF format, chain C [auth A]	C [auth A], H [auth B]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain H [auth B] Interactions & Density Focus chain C [auth A] Focus chain H [auth B]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain G [auth B] SDF format, chain D [auth A] MOL2 format, chain G [auth B] MOL2 format, chain D [auth A] mmCIF format, chain G [auth B] mmCIF format, chain D [auth A]	D [auth A], G [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain G [auth B] Interactions & Density Focus chain D [auth A] Focus chain G [auth B]