7pmi

Cryo-EM structure of the actomyosin-V complex in the post-rigor transition state (AppNHp, central 1er, class 5)

Method: ELECTRON MICROSCOPY Dmax: 161.8 Å Quality: GOOD

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

Unconventional myosin-Va

Gallus gallus

UniProt Q02440

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–792 Not recorded Actin, alpha skeletal muscle × 1 (P68135) Phalloidin × 1 Myosin light chain 6B × 1 (P14649) ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE;On grid decoration, two data sets combined Resolution 3.30 Å

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.

30 other PDB entries and 33 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MYO5A_CHICK
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–792; UniProt 1–792

Actin, alpha skeletal muscle

OrganismNot specified

UniProt P68135

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain C; UniProt 1–377 Non-standard monomer:Yes (specific site not provided by mmCIF) Unconventional myosin-Va × 1 (Q02440) Phalloidin × 1 Myosin light chain 6B × 1 (P14649) ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE;On grid decoration, two data sets combined Resolution 3.30 Å

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.

293 other PDB entries and 353 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACTS_RABIT
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 1–377; UniProt 1–377

Myosin light chain 6B

Homo sapiens

UniProt P14649

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain B; UniProt 59–208 Not recorded Unconventional myosin-Va × 1 (Q02440) Actin, alpha skeletal muscle × 1 (P68135) Phalloidin × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE;On grid decoration, two data sets combined Resolution 3.30 Å

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.

28 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MYL6B_HUMAN
Isoform
PDB entities 4
Chains and sequence ranges Author chain B; PDBConstruct 2–151; UniProt 59–208

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 7pmi

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7pmi
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7pmi
Deposition date deposition_date2021-09-02
Structure title titleCryo-EM structure of the actomyosin-V complex in the post-rigor transition state (AppNHp, central 1er, class 5)
Keywords keywordsMotor protein, myosin, cytoskeleton, F-actin, phalloidin; MOTOR PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier44.47
Radius of gyration Rg (electron density) rg_electron45.12
Forward intensity I(0) i0313103000.00
Molecular weight molecular_weight145010.0 kDa
Excluded volume excluded_volume181750 ų
Envelope volume envelope_volume254780 ų
Hydration-shell volume shell_volume51634 ų
Envelope diameter envelope_diameter171.3
Shell Rg shell_rg44.19
Envelope Rg envelope_rg45.46
Shape Rg shape_rg45.09
Total Rg total_rg45.19
Total atoms total_atoms10189
Residues n_residues1261
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 dmax161.8
Rg (real space) rg_real45.16
Rg uncertainty (real space) rg_real_error1.94
I(0) (real space) i0_real3.1310e+08
I(0) uncertainty (real space) i0_real_error6.0380e+06
Rg (reciprocal space) rg_reciprocal44.48
I(0) (reciprocal space) i0_reciprocal312900000.0000
Solution quality estimate total_estimate0.7589
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary37.0
Skewness Skewness skewness0.710
Kurtosis Kurtosis kurtosis0.094
Angular range angular_range— – 0.1750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha38330000.0000
Real-space data points n_real_points36
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.605; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.513; Smooth: 0.533

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id7pmiA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530

8. Citations (1)

9. Files and Curves (10)