3bz7

Crystal Structures of (S)-(-)-Blebbistatin Analogs bound to Dictyostelium discoideum myosin II

Method: X-RAY DIFFRACTION Dmax: 92.9 Å Quality: GOOD

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

Myosin-2 heavy chain, non muscle

Dictyostelium discoideum

UniProt P08799

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 2–759 Fragment:motor domain, myosine head-like domain MG MAGNESIUM ION × 2 VO4 VANADATE ION × 1 BL4 (3aS)-3a-hydroxy-5-methyl-1-phenyl-1,2,3,3a-tetrahydro-4H-pyrrolo[2,3-b]quinolin-4-one × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7;278 K;mixing 5 ul of protein with an equal volume of well solution containing 100 mM MOPS, 250 mM MgCl2, 12% PEG 8000, 1 mM TCEP, and 2 mM Thymol, pH 7.0, vapor diffusion, hanging drop, temperature 278K Resolution 2.00 Å R-free 0.223
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 2–759 Fragment:motor domain, myosine head-like domain MG MAGNESIUM ION × 4 VO4 VANADATE ION × 2 BL4 (3aS)-3a-hydroxy-5-methyl-1-phenyl-1,2,3,3a-tetrahydro-4H-pyrrolo[2,3-b]quinolin-4-one × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7;278 K;mixing 5 ul of protein with an equal volume of well solution containing 100 mM MOPS, 250 mM MgCl2, 12% PEG 8000, 1 mM TCEP, and 2 mM Thymol, pH 7.0, vapor diffusion, hanging drop, temperature 278K Resolution 2.00 Å R-free 0.223

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.

48 other PDB entries and 51 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MYS2_DICDI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–759; UniProt 2–759

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 3bz7

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3bz7
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3bz7
Deposition date deposition_date2008-01-17
Structure title titleCrystal Structures of (S)-(-)-Blebbistatin Analogs bound to Dictyostelium discoideum myosin II
Keywords keywords;myosin inhibitor, motor domain, blebbistatin analogue, Actin-binding, ATP-binding, Calmodulin-binding, Coiled coil, Cytoplasm, Methylation, Motor protein, Nucleotide-binding, Phosphoprotein, CONTRACTILE PROTEIN ;; CONTRACTILE PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.65
Radius of gyration Rg (electron density) rg_electron27.80
Forward intensity I(0) i098060800.00
Molecular weight molecular_weight78622.0 kDa
Excluded volume excluded_volume98482 ų
Envelope volume envelope_volume122310 ų
Hydration-shell volume shell_volume36253 ų
Envelope diameter envelope_diameter98.2
Shell Rg shell_rg35.45
Envelope Rg envelope_rg28.36
Shape Rg shape_rg27.81
Total Rg total_rg28.50
Total atoms total_atoms5553
Residues n_residues703
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 dmax92.9
Rg (real space) rg_real28.64
Rg uncertainty (real space) rg_real_error0.62
I(0) (real space) i0_real9.8060e+07
I(0) uncertainty (real space) i0_real_error1.3680e+06
Rg (reciprocal space) rg_reciprocal28.65
I(0) (reciprocal space) i0_reciprocal98060000.0000
Solution quality estimate total_estimate0.8810
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary33.8
Skewness Skewness skewness0.389
Kurtosis Kurtosis kurtosis-0.205
Angular range angular_range— – 0.2750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha16790000.0000
Real-space data points n_real_points56
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.868; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.849

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3bz7a1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.3 — Myosin S1 fragment, N-terminal domain
Family Family familyb.34.3.1 — Myosin S1 fragment, N-terminal domain

CATH v4.4 (1 domains)

Domain ID domain_id3bz7A01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530

8. Citations (2)

9. Files and Curves (10)