1dgw

Structure of the rhombohedral crystal of canavalin from jack bean

Method: X-RAY DIFFRACTION Dmax: 94.9 Å Quality: GOOD

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

CANAVALIN

OrganismNot specified

UniProt P50477

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 × 9 PDB declaration: nonameric(9) Consistent with protein copy count Chain A; UniProt 46–223 Chain X; UniProt 246–324 Chain Y; UniProt 331–423 Fragment:RESIDUES 46-223 Fragment:RESIDUES 246-324 Fragment:RESIDUES 331-423 PO4 PHOSPHATE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:LIQUID DIFFUSION;pH 6.8;293 K;DULBECCO'S PHOSPHATE BUFFERED SALINE, AMMONIUM HYDROXIDE (TRACE), MICROGRAVITY, pH 6.8, LIQUID DIFFUSION, temperature 293K Resolution 1.70 Å R-free 0.252

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.

10 other PDB entries and 10 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CANA_CANEN
Isoform
PDB entities 1, 2, 3
Chains and sequence ranges Author chain A; PDBConstruct 1–178; UniProt 46–223 Author chain X; PDBConstruct 1–79; UniProt 246–324 Author chain Y; PDBConstruct 1–93; UniProt 331–423

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 1dgw

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1dgw
Deposition date deposition_date1999-11-26
Structure title titleStructure of the rhombohedral crystal of canavalin from jack bean
Keywords keywordsDUPLICATED SWISS-ROLL BETA BARRELS, LOOPS WITH ALPHA HELICES, MEROHEDRAL/ HEMIHEDRAL TWINNING, PLANT PROTEIN; PLANT PROTEIN
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier24.65
Radius of gyration Rg (electron density) rg_electron23.90
Forward intensity I(0) i026707600.00
Molecular weight molecular_weight39491.0 kDa
Excluded volume excluded_volume49437 ų
Envelope volume envelope_volume62150 ų
Hydration-shell volume shell_volume23209 ų
Envelope diameter envelope_diameter96.6
Shell Rg shell_rg29.20
Envelope Rg envelope_rg24.78
Shape Rg shape_rg23.92
Total Rg total_rg24.47
Total atoms total_atoms2787
Residues n_residues346
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −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

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax94.9
Rg (real space) rg_real24.96
Rg uncertainty (real space) rg_real_error1.27
I(0) (real space) i0_real2.6710e+07
I(0) uncertainty (real space) i0_real_error4.5820e+05
Rg (reciprocal space) rg_reciprocal24.88
I(0) (reciprocal space) i0_reciprocal26710000.0000
Solution quality estimate total_estimate0.7612
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary27.1
Skewness Skewness skewness0.762
Kurtosis Kurtosis kurtosis0.611
Angular range angular_range— – 0.3200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3149000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.425; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.647; Smooth: 0.971

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1dgw.1
Class classb — All beta proteins
Fold Fold foldb.82 — Double-stranded beta-helix
Superfamily Superfamily superfamilyb.82.1 — RmlC-like cupins
Family Family familyb.82.1.2 — Germin/Seed storage 7S protein
Domain ID domain_idd1dgwa_
Class classb — All beta proteins
Fold Fold foldb.82 — Double-stranded beta-helix
Superfamily Superfamily superfamilyb.82.1 — RmlC-like cupins
Family Family familyb.82.1.2 — Germin/Seed storage 7S protein

CATH v4.4 (3 domains)

Domain ID domain_id1dgwA00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily10 — Jelly Rolls
Domain ID domain_id1dgwX00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily1450
Domain ID domain_id1dgwY01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily840

8. Citations (2)

9. Files and Curves (10)