1g8x

STRUCTURE OF A GENETICALLY ENGINEERED MOLECULAR MOTOR

Method: X-RAY DIFFRACTION Dmax: 210.4 Å Quality: REASONABLE

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

MYOSIN II HEAVY CHAIN FUSED TO ALPHA-ACTININ 3

Dictyostelium discoideum

UniProt P05095

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 266–503 Chain B; UniProt 266–503 Fragment:MYOSIN II HEAVY CHAIN, MOTOR DOMAIN RESIDUES 1-761, AND ALPHA-ACTININ 3, REPEATS 1 AND 2 RESIDUES 765-1002 Mutation:ARG238GLU MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.2;280 K;12% PEGM 5000; 170 mM NaCl; 50 mM HEPES (NaOH) pH 7.2; 5 mM MgCl2; 5 mM DTT; 0.5 mM EGTA; and 2% 2-methyl-1,3-propanediol, at 280 K, VAPOR DIFFUSION, SITTING DROP Resolution 2.80 Å R-free 0.290

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.

4 other PDB entries and 5 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name AACT_DICDI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 765–1002; UniProt 266–503 Author chain B; PDBConstruct 765–1002; UniProt 266–503

MYOSIN II HEAVY CHAIN FUSED TO ALPHA-ACTININ 3

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 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–761 Chain B; UniProt 1–761 Fragment:MYOSIN II HEAVY CHAIN, MOTOR DOMAIN RESIDUES 1-761, AND ALPHA-ACTININ 3, REPEATS 1 AND 2 RESIDUES 765-1002 Mutation:ARG238GLU MG MAGNESIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.2;280 K;12% PEGM 5000; 170 mM NaCl; 50 mM HEPES (NaOH) pH 7.2; 5 mM MgCl2; 5 mM DTT; 0.5 mM EGTA; and 2% 2-methyl-1,3-propanediol, at 280 K, VAPOR DIFFUSION, SITTING DROP Resolution 2.80 Å R-free 0.290

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 52 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 1–761; UniProt 1–761 Author chain B; PDBConstruct 1–761; UniProt 1–761

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 1g8x

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1g8x
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1g8x
Deposition date deposition_date2000-11-21
Structure title titleSTRUCTURE OF A GENETICALLY ENGINEERED MOLECULAR MOTOR
Keywords keywordsmyosin, motor, alpha-actinin, dictyostelium, lever arm, protein engineering, structural protein; STRUCTURAL PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier58.91
Radius of gyration Rg (electron density) rg_electron60.03
Forward intensity I(0) i0778198000.00
Molecular weight molecular_weight230700.0 kDa
Excluded volume excluded_volume288590 ų
Envelope volume envelope_volume493680 ų
Hydration-shell volume shell_volume76177 ų
Envelope diameter envelope_diameter294.2
Shell Rg shell_rg54.26
Envelope Rg envelope_rg63.17
Shape Rg shape_rg60.08
Total Rg total_rg59.66
Total atoms total_atoms16278
Residues n_residues2018
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 dmax210.4
Rg (real space) rg_real59.26
Rg uncertainty (real space) rg_real_error2.34
I(0) (real space) i0_real7.7560e+08
I(0) uncertainty (real space) i0_real_error1.7990e+07
Rg (reciprocal space) rg_reciprocal57.83
I(0) (reciprocal space) i0_reciprocal775300000.0000
Solution quality estimate total_estimate0.5338
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary54.5
Skewness Skewness skewness0.731
Kurtosis Kurtosis kurtosis0.036
Angular range angular_range— – 0.1350 −1
Current regularization parameter α current_alpha0.0060
Highest regularization parameter α highest_alpha45330000.0000
Real-space data points n_real_points28
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.001; Oscil: 0.587; Stabil: 0.998; Sysdev: 0.009; Positv: 1.000; Valcen: 0.623; Smooth: 0.523

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1g8xa1
Class classk — Designed proteins
Fold Fold foldk.1 — Hybrid and chimeric proteins
Superfamily Superfamily superfamilyk.1.1 — Hybrid and chimeric proteins
Family Family familyk.1.1.1 — Hybrid and chimeric proteins
Domain ID domain_idd1g8xa2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd1g8xb1
Class classk — Designed proteins
Fold Fold foldk.1 — Hybrid and chimeric proteins
Superfamily Superfamily superfamilyk.1.1 — Hybrid and chimeric proteins
Family Family familyk.1.1.1 — Hybrid and chimeric proteins
Domain ID domain_idd1g8xb2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (12 domains)

Domain ID domain_id1g8xA01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily360 — Myosin S1 fragment, N-terminal
Domain ID domain_id1g8xA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1g8xA03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820
Domain ID domain_id1g8xA04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1g8xA05
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530
Domain ID domain_id1g8xA06
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily60
Domain ID domain_id1g8xB01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily360 — Myosin S1 fragment, N-terminal
Domain ID domain_id1g8xB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology850 — Kinesin
Homologous superfamily homologous superfamily10 — Kinesin motor domain
Domain ID domain_id1g8xB03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily820
Domain ID domain_id1g8xB04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily720 — Myosin VI head, motor domain, U50 subdomain
Domain ID domain_id1g8xB05
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily530
Domain ID domain_id1g8xB06
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily60

8. Citations (1)

9. Files and Curves (10)