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1csm

THE CRYSTAL STRUCTURE OF ALLOSTERIC CHORISMATE MUTASE AT 2.2 ANGSTROMS RESOLUTION

Method: X-RAY DIFFRACTION Dmax: 90.2 Å Quality: REASONABLE
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1. Protein Identity and Related Structures Protein Identity & Related Structures

CHORISMATE MUTASE

Saccharomyces cerevisiae

UniProt P32178

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric（2） Consistent with protein copy count Chain A； UniProt 1–256 Chain B； UniProt 1–256 Not recorded TRP TRYPTOPHAN × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.20 Å R-free 0.310

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 1CSM Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
2CSM TYR-BOUND T-STATE OF YEAST CHORISMATE MUTASE Deposited 1995-11-24 Different construct Different mutation/modification Different ligand/ion Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 1–256（256 aa）
Not recorded TYR TYROSINE × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.80 Å R-free 0.321
3CSM STRUCTURE OF YEAST CHORISMATE MUTASE WITH BOUND TRP AND AN ENDOOXABICYCLIC INHIBITOR Deposited 1997-07-10 Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 1–256（256 aa）
Chain B 1–256（256 aa）
Not recorded TRP TRYPTOPHAN × 2 TSA 8-HYDROXY-2-OXA-BICYCLO[3.3.1]NON-6-ENE-3,5-DICARBOXYLIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；HANGING DROP, 19 % (W/V) PEG MONOMETHYLETHER 5000, 5 MM DTT, 0.15 M TRIS PH 8.0, 0.15 M SODIUM ACETATE, 16 MM TRYPTOPHAN, 3 MM INHIBITOR, 10 MG/ML PROTEIN, vapor diffusion - hanging drop
Resolution 3.00 Å R-free 0.247
3CSM STRUCTURE OF YEAST CHORISMATE MUTASE WITH BOUND TRP AND AN ENDOOXABICYCLIC INHIBITOR Deposited 1997-07-10 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 1–256（256 aa）
Not recorded TRP TRYPTOPHAN × 2 TSA 8-HYDROXY-2-OXA-BICYCLO[3.3.1]NON-6-ENE-3,5-DICARBOXYLIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；HANGING DROP, 19 % (W/V) PEG MONOMETHYLETHER 5000, 5 MM DTT, 0.15 M TRIS PH 8.0, 0.15 M SODIUM ACETATE, 16 MM TRYPTOPHAN, 3 MM INHIBITOR, 10 MG/ML PROTEIN, vapor diffusion - hanging drop
Resolution 3.00 Å R-free 0.247
3CSM STRUCTURE OF YEAST CHORISMATE MUTASE WITH BOUND TRP AND AN ENDOOXABICYCLIC INHIBITOR Deposited 1997-07-10 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain B 1–256（256 aa）
Not recorded TRP TRYPTOPHAN × 2 TSA 8-HYDROXY-2-OXA-BICYCLO[3.3.1]NON-6-ENE-3,5-DICARBOXYLIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；HANGING DROP, 19 % (W/V) PEG MONOMETHYLETHER 5000, 5 MM DTT, 0.15 M TRIS PH 8.0, 0.15 M SODIUM ACETATE, 16 MM TRYPTOPHAN, 3 MM INHIBITOR, 10 MG/ML PROTEIN, vapor diffusion - hanging drop
Resolution 3.00 Å R-free 0.247
4CSM YEAST CHORISMATE MUTASE + TYR + ENDOOXABICYCLIC INHIBITOR Deposited 1997-07-14 Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 1–256（256 aa）
Chain B 1–256（256 aa）
Not recorded TYR TYROSINE × 2 TSA 8-HYDROXY-2-OXA-BICYCLO[3.3.1]NON-6-ENE-3,5-DICARBOXYLIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；HANGING DROP, 32 % (W/V) PEG MONOMETHYLETHER 500, 4 MM DTT, 0.1 M TRIS PH 9.0, 0.1 M SODIUM CHLORIDE, 2 MM TYROSINE, 3 MM INHIBITOR, 10 MG/ML PROTEIN, vapor diffusion - hanging drop
Resolution 2.80 Å R-free 0.270
4CSM YEAST CHORISMATE MUTASE + TYR + ENDOOXABICYCLIC INHIBITOR Deposited 1997-07-14 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain B 1–256（256 aa）
Not recorded TYR TYROSINE × 2 TSA 8-HYDROXY-2-OXA-BICYCLO[3.3.1]NON-6-ENE-3,5-DICARBOXYLIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；HANGING DROP, 32 % (W/V) PEG MONOMETHYLETHER 500, 4 MM DTT, 0.1 M TRIS PH 9.0, 0.1 M SODIUM CHLORIDE, 2 MM TYROSINE, 3 MM INHIBITOR, 10 MG/ML PROTEIN, vapor diffusion - hanging drop
Resolution 2.80 Å R-free 0.270
4CSM YEAST CHORISMATE MUTASE + TYR + ENDOOXABICYCLIC INHIBITOR Deposited 1997-07-14 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 1–256（256 aa）
Not recorded TYR TYROSINE × 2 TSA 8-HYDROXY-2-OXA-BICYCLO[3.3.1]NON-6-ENE-3,5-DICARBOXYLIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；HANGING DROP, 32 % (W/V) PEG MONOMETHYLETHER 500, 4 MM DTT, 0.1 M TRIS PH 9.0, 0.1 M SODIUM CHLORIDE, 2 MM TYROSINE, 3 MM INHIBITOR, 10 MG/ML PROTEIN, vapor diffusion - hanging drop
Resolution 2.80 Å R-free 0.270
5CSM YEAST CHORISMATE MUTASE, T226S MUTANT, COMPLEX WITH TRP Deposited 1997-07-14 Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 1–256（256 aa）
Mutation：T226S TRP TRYPTOPHAN × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；HANGING DROP, 19 % PEG 3350, 3 MM DTT, 0.16 M SODIUM ACETATE PH 5.0, 16 MM TRYPTOPHAN, 10 MG/ML PROTEIN, vapor diffusion - hanging drop
Resolution 2.00 Å R-free 0.236

4 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CHMU_YEAST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–256； UniProt 1–256 Author chain B； PDBConstruct 1–256； UniProt 1–256

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.

SAXS scattering curve SAXS Profile

SAXS profile for 1csm

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1csm
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1csm
Deposition date deposition_date1994-08-22
Structure title titleTHE CRYSTAL STRUCTURE OF ALLOSTERIC CHORISMATE MUTASE AT 2.2 ANGSTROMS RESOLUTION
Keywords keywordsISOMERASE; ISOMERASE
Experimental Method methodX-RAY DIFFRACTION
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier24.79 Å
Radius of gyration Rg (electron density) rg_electron24.08 Å
Forward intensity I(0) i052379700.00
Molecular weight molecular_weight59148.0 kDa
Excluded volume excluded_volume75252 ų
Envelope volume envelope_volume87732 ų
Hydration-shell volume shell_volume30360 ų
Envelope diameter envelope_diameter93.9 Å
Shell Rg shell_rg31.38 Å
Envelope Rg envelope_rg24.29 Å
Shape Rg shape_rg24.05 Å
Total Rg total_rg25.01 Å
Total atoms total_atoms5104
Residues n_residues504
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax90.2 Å
Rg (real space) rg_real25.88 Å
Rg uncertainty (real space) rg_real_error0.32 Å
I(0) (real space) i0_real5.2520e+07
I(0) uncertainty (real space) i0_real_error5.8830e+05
Rg (reciprocal space) rg_reciprocal24.78 Å
I(0) (reciprocal space) i0_reciprocal52380000.0000
Solution quality estimate total_estimate0.6321
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary30.1 Å
Skewness Skewness skewness0.638
Kurtosis Kurtosis kurtosis0.445
Angular range angular_range— – 0.3200 Å−1
Current regularization parameter α current_alpha3.6910
Highest regularization parameter α highest_alpha31590000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.655; Stabil: 0.888; Sysdev: 0.000; Positv: 1.000; Valcen: 0.931; Smooth: 0.701
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (3)

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7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1csma_
Class classa — All alpha proteins
Fold Fold folda.130 — Chorismate mutase II
Superfamily Superfamily superfamilya.130.1 — Chorismate mutase II
Family Family familya.130.1.2 — Allosteric chorismate mutase
Domain ID domain_idd1csmb_
Class classa — All alpha proteins
Fold Fold folda.130 — Chorismate mutase II
Superfamily Superfamily superfamilya.130.1 — Chorismate mutase II
Family Family familya.130.1.2 — Allosteric chorismate mutase

CATH v4.4 (2 domains)

Domain ID domain_id1csmA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology590 — Chorismate Mutase, subunit A
Homologous superfamily homologous superfamily10 — Chorismate mutase, AroQ class superfamily, eukaryotic
Domain ID domain_id1csmB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology590 — Chorismate Mutase, subunit A
Homologous superfamily homologous superfamily10 — Chorismate mutase, AroQ class superfamily, eukaryotic
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8. Citations (1)

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9. Files and Curves (10)