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- PDB-5vt9: Myosin Light chain 1 and MyoA complex -

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Basic information

Entry
Database: PDB / ID: 5vt9
TitleMyosin Light chain 1 and MyoA complex
Components
  • Myosin light chain TgMLC1
  • Myosin-A
KeywordsMOTOR PROTEIN / Myosin light chain
Function / homology
Function and homology information


mitotic actomyosin contractile ring assembly / vesicle transport along actin filament / myosin complex / myosin II complex / microfilament motor activity / myosin heavy chain binding / actin filament organization / actin filament binding / vesicle / calcium ion binding ...mitotic actomyosin contractile ring assembly / vesicle transport along actin filament / myosin complex / myosin II complex / microfilament motor activity / myosin heavy chain binding / actin filament organization / actin filament binding / vesicle / calcium ion binding / ATP binding / plasma membrane / cytoplasm
Similarity search - Function
: / Myosin A tail domain interacting protein, N-terminal / Class XIV myosin, motor domain / Myosin head, motor domain / Myosin head (motor domain) / Myosin motor domain profile. / Myosin. Large ATPases. / Kinesin motor domain superfamily / EF-hand / Recoverin; domain 1 ...: / Myosin A tail domain interacting protein, N-terminal / Class XIV myosin, motor domain / Myosin head, motor domain / Myosin head (motor domain) / Myosin motor domain profile. / Myosin. Large ATPases. / Kinesin motor domain superfamily / EF-hand / Recoverin; domain 1 / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair / P-loop containing nucleoside triphosphate hydrolase / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
Myosin-A / Myosin light chain MLC1
Similarity search - Component
Biological speciesToxoplasma gondii (eukaryote)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.85 Å
AuthorsPowell, C.J. / Parker, M.L. / Boulanger, M.J.
Funding support Canada, 2items
OrganizationGrant numberCountry
Canadian Institutes of Health Research (CIHR)MOP82915 Canada
Canadian Institutes of Health Research (CIHR)148596 Canada
CitationJournal: J. Biol. Chem. / Year: 2017
Title: Dissecting the molecular assembly of the Toxoplasma gondii MyoA motility complex.
Authors: Powell, C.J. / Jenkins, M.L. / Parker, M.L. / Ramaswamy, R. / Kelsen, A. / Warshaw, D.M. / Ward, G.E. / Burke, J.E. / Boulanger, M.J.
History
DepositionMay 16, 2017Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 4, 2017Provider: repository / Type: Initial release
Revision 1.1Oct 18, 2017Group: Database references / Category: citation
Item: _citation.journal_abbrev / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Dec 6, 2017Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Jan 8, 2020Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.4Oct 4, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Myosin light chain TgMLC1
C: Myosin-A
B: Myosin light chain TgMLC1
D: Myosin-A


Theoretical massNumber of molelcules
Total (without water)41,6804
Polymers41,6804
Non-polymers00
Water2,648147
1
A: Myosin light chain TgMLC1
C: Myosin-A


Theoretical massNumber of molelcules
Total (without water)20,8402
Polymers20,8402
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3020 Å2
ΔGint-22 kcal/mol
Surface area8520 Å2
MethodPISA
2
B: Myosin light chain TgMLC1
D: Myosin-A


Theoretical massNumber of molelcules
Total (without water)20,8402
Polymers20,8402
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3010 Å2
ΔGint-19 kcal/mol
Surface area8800 Å2
MethodPISA
Unit cell
Length a, b, c (Å)40.990, 64.390, 65.150
Angle α, β, γ (deg.)90.00, 97.72, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Myosin light chain TgMLC1 / MLC1


Mass: 16878.602 Da / Num. of mol.: 2 / Fragment: UNP residues 66-210
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Toxoplasma gondii (eukaryote) / Production host: Escherichia coli (E. coli) / References: UniProt: Q95UJ7
#2: Protein/peptide Myosin-A / MyoA / TgM-A


Mass: 3961.553 Da / Num. of mol.: 2 / Fragment: UNP residues 801-831
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Toxoplasma gondii (eukaryote) / Production host: Escherichia coli (E. coli) / References: UniProt: O00934
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 147 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.04 Å3/Da / Density % sol: 39.83 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop / pH: 5.5
Details: 0.9 uL 8 mg/mL protein + 1.35 uL reservoir (0.1 M Bis-Tris, pH 5.5, 25% PEG3350)

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL7-1 / Wavelength: 1.127 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Feb 1, 2016
RadiationMonochromator: Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.127 Å / Relative weight: 1
ReflectionResolution: 1.85→64.56 Å / Num. obs: 28665 / % possible obs: 99.6 % / Redundancy: 6 % / Rmerge(I) obs: 0.076 / Net I/σ(I): 15.3
Reflection shellResolution: 1.85→1.89 Å / Redundancy: 6.1 % / Rmerge(I) obs: 0.627 / Mean I/σ(I) obs: 2.9 / Num. unique obs: 1749 / % possible all: 99.8

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Processing

Software
NameVersionClassification
PHENIX1.9_1692refinement
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 2QAC
Resolution: 1.85→40.618 Å / SU ML: 0.19 / Cross valid method: FREE R-VALUE / σ(F): 1.36 / Phase error: 24.02
RfactorNum. reflection% reflectionSelection details
Rfree0.2294 1440 5.03 %Random selection
Rwork0.1909 ---
obs0.1928 28641 99.51 %-
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Refinement stepCycle: LAST / Resolution: 1.85→40.618 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2608 0 0 147 2755
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0052660
X-RAY DIFFRACTIONf_angle_d0.9493591
X-RAY DIFFRACTIONf_dihedral_angle_d14.675975
X-RAY DIFFRACTIONf_chiral_restr0.036386
X-RAY DIFFRACTIONf_plane_restr0.004477
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.85-1.91610.28671480.24132701X-RAY DIFFRACTION100
1.9161-1.99280.26271440.22562695X-RAY DIFFRACTION100
1.9928-2.08350.25951300.21462746X-RAY DIFFRACTION100
2.0835-2.19340.23961360.19962713X-RAY DIFFRACTION100
2.1934-2.33080.21821630.19922695X-RAY DIFFRACTION100
2.3308-2.51070.24761160.19082737X-RAY DIFFRACTION100
2.5107-2.76330.25091560.20132710X-RAY DIFFRACTION100
2.7633-3.16310.25271340.20552744X-RAY DIFFRACTION99
3.1631-3.98460.2331520.17172699X-RAY DIFFRACTION99
3.9846-40.6280.1811610.16752761X-RAY DIFFRACTION99

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