6z7t

Nucleotide-free Myosin-II motor domain

Method: X-RAY DIFFRACTION Dmax: 125.4 Å Quality: EXCELLENT

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

Myosin-2 heavy chain

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 2–761 Not recorded MG MAGNESIUM ION × 2 EDO 1,2-ETHANEDIOL × 10 GOL GLYCEROL × 5 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;277 K;100 mM HEPES, pH7.5, 10% PEG8000, 8% Ethylenglycol Resolution 1.88 Å R-free 0.217
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2–761 Not recorded MG MAGNESIUM ION × 2 EDO 1,2-ETHANEDIOL × 10 GOL GLYCEROL × 5 PGE TRIETHYLENE GLYCOL × 1 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;277 K;100 mM HEPES, pH7.5, 10% PEG8000, 8% Ethylenglycol Resolution 1.88 Å R-free 0.217

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 13–772; UniProt 2–761 Author chain B; PDBConstruct 13–772; UniProt 2–761

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 6z7t

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6z7t
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6z7t
Deposition date deposition_date2020-06-01
Structure title titleNucleotide-free Myosin-II motor domain
Keywords keywordsmyosin, motorprotein, blebbistatin, ADP-release, inhibitor, complex, hydrolase, MOTOR PROTEIN; MOTOR PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier39.74
Radius of gyration Rg (electron density) rg_electron38.97
Forward intensity I(0) i0412557000.00
Molecular weight molecular_weight166780.0 kDa
Excluded volume excluded_volume209110 ų
Envelope volume envelope_volume282140 ų
Hydration-shell volume shell_volume59000 ų
Envelope diameter envelope_diameter128.9
Shell Rg shell_rg46.17
Envelope Rg envelope_rg38.26
Shape Rg shape_rg38.95
Total Rg total_rg39.44
Total atoms total_atoms23351
Residues n_residues1456
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 dmax125.4
Rg (real space) rg_real39.56
Rg uncertainty (real space) rg_real_error0.85
I(0) (real space) i0_real4.1260e+08
I(0) uncertainty (real space) i0_real_error7.0780e+06
Rg (reciprocal space) rg_reciprocal39.68
I(0) (reciprocal space) i0_reciprocal412600000.0000
Solution quality estimate total_estimate0.9079
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary47.0
Skewness Skewness skewness0.140
Kurtosis Kurtosis kurtosis-0.642
Angular range angular_range— – 0.2000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha58160000.0000
Real-space data points n_real_points41
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.952; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.942

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)