← Back to search
5k6r

Crystal structure of Arabidopsis thaliana acetohydroxyacid synthase in complex with a sulfonylamino-carbonyl-triazolinone herbicide, thiencarbazone-methyl

Method: X-RAY DIFFRACTION
▼

1. Protein Identity and Related Structures Protein Identity & Related Structures

Acetolactate synthase, chloroplastic

Arabidopsis thaliana

UniProt P17597

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 4 MAGNESIUM ION × 4 FLAVIN-ADENINE DINUCLEOTIDE × 4 methyl 4-[(3-methoxy-4-methyl-5-oxidanylidene-1,2,4-triazol-1-yl)carbonylsulfamoyl]-5-methyl-thiophene-3-carboxylate × 4 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 4 POTASSIUM ION × 4 2-{3-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-4-METHYL-2-OXO-2,3-DIHYDRO-1,3-THIAZOL-5-YL}ETHYL TRIHYDROGEN DIPHOSPHATE × 4 water × 4 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 MAGNESIUM ION × 2 FLAVIN-ADENINE DINUCLEOTIDE × 2 methyl 4-[(3-methoxy-4-methyl-5-oxidanylidene-1,2,4-triazol-1-yl)carbonylsulfamoyl]-5-methyl-thiophene-3-carboxylate × 2 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 2 POTASSIUM ION × 2 2-{3-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-4-METHYL-2-OXO-2,3-DIHYDRO-1,3-THIAZOL-5-YL}ETHYL TRIHYDROGEN DIPHOSPHATE × 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
9c4r

1 assemblies

Homodimer
1ybh 1yhy 1yhz 1yi0 1yi1 1z8n 3e9y 3ea4 5k6q 5k6r 5k6t 7stq

16 assemblies; showing the first 12

Homotetramer
1ybh 1yhy 1yhz 1yi0 1yi1 1z8n 3e9y 3ea4 5k2o 5k3s 5k6q 5k6r

19 assemblies; showing the first 12

Other homooligomers

None

Heteromeric or nucleic-acid complex
6u9h 6vz8

2 assemblies

View Construct and Data Evidence
UniProt name ILVB_ARATH
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–582； UniProt 86–667

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id5k6r
Deposition date deposition_date2016-05-25
Structure title titleCrystal structure of Arabidopsis thaliana acetohydroxyacid synthase in complex with a sulfonylamino-carbonyl-triazolinone herbicide, thiencarbazone-methyl
Keywords keywords;AHAS, acetohydroxyacid synthase, acetolactate synthase, herbicide, thiencarbazone methyl, thiamin diphosphate, FAD, sulfonylamino-carbonyl-triazolinone, transferase ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION
▼

3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

5k6r__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

5k6r__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

5k6r__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）39.88 Å
Rg (electron density)39.33 Å
Total Rg39.61 Å
Atom count18286
Residues2324
Excluded volume325160 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 5k6r__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 5k6r__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (8)

▼

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd5k6ra1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.5 — Pyruvate oxidase and decarboxylase Pyr module
Domain ID domain_idd5k6ra2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.31 — DHS-like NAD/FAD-binding domain
Superfamily Superfamily superfamilyc.31.1 — DHS-like NAD/FAD-binding domain
Family Family familyc.31.1.3 — Pyruvate oxidase and decarboxylase, middle domain
Domain ID domain_idd5k6ra3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.9 — Pyruvate oxidase and decarboxylase PP module

CATH v4.4 (3 domains)

Domain ID domain_id5k6rA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id5k6rA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1220 — TPP-binding domain
Domain ID domain_id5k6rA03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
▶

7. Citations (1)