1u0a

Crystal structure of the engineered beta-1,3-1,4-endoglucanase H(A16-M) in complex with beta-glucan tetrasaccharide

Method: X-RAY DIFFRACTION Dmax: 94.3 Å Quality: EXCELLENT

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

Beta-glucanase

Paenibacillus macerans

UniProt P23904

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Monomer Protein × 1 其他Polymer 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 40–237 Mutation:E105Q, E109Q beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-3)-beta-D-glucopyranose × 1 CA CALCIUM ION × 1 ZN ZINC ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;293 K;25% (v/v) PEG Monomethyl Ether 550, 0.01 M Zinc Sulfate heptahydrate, 0.1 M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 6.50 Resolution 1.64 Å R-free 0.197
2 Other combination Monomer Protein × 1 其他Polymer 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 40–237 Mutation:E105Q, E109Q beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-3)-beta-D-glucopyranose × 1 CA CALCIUM ION × 1 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;293 K;25% (v/v) PEG Monomethyl Ether 550, 0.01 M Zinc Sulfate heptahydrate, 0.1 M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 6.50 Resolution 1.64 Å R-free 0.197
3 Other combination Monomer Protein × 1 其他Polymer 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 40–237 Mutation:E105Q, E109Q beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-3)-beta-D-glucopyranose × 1 CA CALCIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;293 K;25% (v/v) PEG Monomethyl Ether 550, 0.01 M Zinc Sulfate heptahydrate, 0.1 M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 6.50 Resolution 1.64 Å R-free 0.197
4 Other combination Monomer Protein × 1 其他Polymer 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 40–237 Mutation:E105Q, E109Q beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-3)-beta-D-glucopyranose × 1 CA CALCIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;293 K;25% (v/v) PEG Monomethyl Ether 550, 0.01 M Zinc Sulfate heptahydrate, 0.1 M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 6.50 Resolution 1.64 Å R-free 0.197
5 Other combination Homooligomer Protein × 4 其他Polymer 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 40–237 Chain B; UniProt 40–237 Chain C; UniProt 40–237 Chain D; UniProt 40–237 Mutation:E105Q, E109Q beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-3)-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 ZN ZINC ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;293 K;25% (v/v) PEG Monomethyl Ether 550, 0.01 M Zinc Sulfate heptahydrate, 0.1 M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 6.50 Resolution 1.64 Å R-free 0.197

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.

8 other PDB entries and 11 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GUB_PAEMA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 17–214; UniProt 40–237 Author chain B; PDBConstruct 17–214; UniProt 40–237 Author chain C; PDBConstruct 17–214; UniProt 40–237 Author chain D; PDBConstruct 17–214; UniProt 40–237

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 1u0a

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1u0a
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1u0a
Deposition date deposition_date2004-07-13
Structure title titleCrystal structure of the engineered beta-1,3-1,4-endoglucanase H(A16-M) in complex with beta-glucan tetrasaccharide
Keywords keywords1, 3-1, 4-beta-glucanase, protein-carbohydrate interaction, active-site variant, jellyroll architecture, hydrolase; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier32.21
Radius of gyration Rg (electron density) rg_electron31.00
Forward intensity I(0) i0154425000.00
Molecular weight molecular_weight98680.0 kDa
Excluded volume excluded_volume122650 ų
Envelope volume envelope_volume147470 ų
Hydration-shell volume shell_volume38552 ų
Envelope diameter envelope_diameter99.1
Shell Rg shell_rg39.19
Envelope Rg envelope_rg30.43
Shape Rg shape_rg31.02
Total Rg total_rg31.63
Total atoms total_atoms6975
Residues n_residues856
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 dmax94.3
Rg (real space) rg_real31.98
Rg uncertainty (real space) rg_real_error0.53
I(0) (real space) i0_real1.5440e+08
I(0) uncertainty (real space) i0_real_error2.1740e+06
Rg (reciprocal space) rg_reciprocal32.09
I(0) (reciprocal space) i0_reciprocal154400000.0000
Solution quality estimate total_estimate0.9083
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary50.0
Skewness Skewness skewness-0.015
Kurtosis Kurtosis kurtosis-0.750
Angular range angular_range— – 0.2450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha87430000.0000
Real-space data points n_real_points50
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.958; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.933

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1u0aa_
Class classb — All beta proteins
Fold Fold foldb.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamilyb.29.1 — Concanavalin A-like lectins/glucanases
Family Family familyb.29.1.2 — Glycosyl hydrolases family 16
Domain ID domain_idd1u0ab_
Class classb — All beta proteins
Fold Fold foldb.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamilyb.29.1 — Concanavalin A-like lectins/glucanases
Family Family familyb.29.1.2 — Glycosyl hydrolases family 16
Domain ID domain_idd1u0ac_
Class classb — All beta proteins
Fold Fold foldb.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamilyb.29.1 — Concanavalin A-like lectins/glucanases
Family Family familyb.29.1.2 — Glycosyl hydrolases family 16
Domain ID domain_idd1u0ad_
Class classb — All beta proteins
Fold Fold foldb.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamilyb.29.1 — Concanavalin A-like lectins/glucanases
Family Family familyb.29.1.2 — Glycosyl hydrolases family 16

CATH v4.4 (4 domains)

Domain ID domain_id1u0aA00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily200
Domain ID domain_id1u0aB00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily200
Domain ID domain_id1u0aC00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily200
Domain ID domain_id1u0aD00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily200

8. Citations (1)

9. Files and Curves (10)