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3bz9

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

Method: X-RAY DIFFRACTION
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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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 MAGNESIUM ION × 2 VANADATE ION × 1 ADENOSINE-5'-DIPHOSPHATE × 1 (3aS)-3a-hydroxy-1-phenyl-1,2,3,3a-tetrahydro-4H-pyrrolo[2,3-b]quinolin-4-one × 1 1,2-ETHANEDIOL × 1 water × 1 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 MAGNESIUM ION × 4 VANADATE ION × 2 ADENOSINE-5'-DIPHOSPHATE × 2 (3aS)-3a-hydroxy-1-phenyl-1,2,3,3a-tetrahydro-4H-pyrrolo[2,3-b]quinolin-4-one × 2 1,2-ETHANEDIOL × 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1d0x 1d0y 1d0z 1d1a 1d1b 1d1c 1fmv 1fmw 1lvk 1mma 1mmd 1mmg

45 assemblies; showing the first 12

Homodimer
3bz7 3bz8 3bz9

3 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1g8x 1jwy 1jx2 2aka 7b1a

5 assemblies

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id3bz9
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
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

3bz9__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3bz9__assembly_1__model_1 | I(q)

10-2 10-1 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3bz9__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）28.69 Å
Rg (electron density)27.84 Å
Total Rg28.54 Å
Atom count5575
Residues704
Excluded volume98844 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3bz9__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3bz9__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (7)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3bz9a1
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_id3bz9A01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530 —
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7. Citations (2)