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- PDB-6i4d: Crystal Structure of Plasmodium falciparum actin I in the Mg-K-AT... -

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Basic information

Entry
Database: PDB / ID: 6i4d
TitleCrystal Structure of Plasmodium falciparum actin I in the Mg-K-ATP/ADP state
Components
  • Actin-1
  • Gelsolin
KeywordsCONTRACTILE PROTEIN / hydrolase / filamentous / glideosome / cytoskeleton
Function / homology
Function and homology information


glial filament / plastid inheritance / schizogony / apical ectoplasmic specialization / basal ectoplasmic specialization / Caspase-mediated cleavage of cytoskeletal proteins / symbiont-mediated actin polymerization-dependent cell-to-cell migration in host / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / striated muscle atrophy / regulation of establishment of T cell polarity ...glial filament / plastid inheritance / schizogony / apical ectoplasmic specialization / basal ectoplasmic specialization / Caspase-mediated cleavage of cytoskeletal proteins / symbiont-mediated actin polymerization-dependent cell-to-cell migration in host / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / striated muscle atrophy / regulation of establishment of T cell polarity / regulation of plasma membrane raft polarization / regulation of receptor clustering / renal protein absorption / positive regulation of keratinocyte apoptotic process / positive regulation of protein processing in phagocytic vesicle / positive regulation of actin nucleation / phosphatidylinositol 3-kinase catalytic subunit binding / actin cap / Neutrophil degranulation / regulation of podosome assembly / sequestering of actin monomers / myosin II binding / negative regulation of viral entry into host cell / entry into host cell by a symbiont-containing vacuole / actin filament severing / actin filament capping / actin filament depolymerization / barbed-end actin filament capping / actin polymerization or depolymerization / cardiac muscle cell contraction / cell projection assembly / podosome / relaxation of cardiac muscle / positive regulation of p38MAPK cascade / phagocytosis, engulfment / positive regulation of cardiac muscle hypertrophy / hepatocyte apoptotic process / sarcoplasm / cilium assembly / vesicle-mediated transport / ruffle / cytoskeleton organization / cellular response to cadmium ion / response to muscle stretch / phosphatidylinositol-4,5-bisphosphate binding / phagocytic vesicle / actin filament polymerization / Neutrophil degranulation / central nervous system development / actin filament / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / protein destabilization / structural constituent of cytoskeleton / cellular response to type II interferon / actin filament binding / actin cytoskeleton / lamellipodium / myelin sheath / actin binding / actin cytoskeleton organization / amyloid fibril formation / calcium ion binding / perinuclear region of cytoplasm / ATP hydrolysis activity / protein-containing complex / extracellular space / extracellular region / ATP binding / nucleus / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Villin/Gelsolin / Gelsolin homology domain / Severin / Severin / Gelsolin-like domain / Gelsolin repeat / ADF-H/Gelsolin-like domain superfamily / ATPase, substrate binding domain, subdomain 4 / Actin; Chain A, domain 4 / ATPase, nucleotide binding domain ...Villin/Gelsolin / Gelsolin homology domain / Severin / Severin / Gelsolin-like domain / Gelsolin repeat / ADF-H/Gelsolin-like domain superfamily / ATPase, substrate binding domain, subdomain 4 / Actin; Chain A, domain 4 / ATPase, nucleotide binding domain / Actins signature 1. / Actin, conserved site / Actins signature 2. / Actin/actin-like conserved site / Actins and actin-related proteins signature. / Actin / Actin family / Actin / ATPase, nucleotide binding domain / Nucleotidyltransferase; domain 5 / Alpha-Beta Complex / 2-Layer Sandwich / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / : / THIOCYANATE ION / Gelsolin / Actin-1
Similarity search - Component
Biological speciesPlasmodium falciparum (malaria parasite P. falciparum)
Mus musculus (house mouse)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.24 Å
AuthorsKumpula, E.-P. / Lopez, A.J. / Tajedin, L. / Han, H. / Kursula, I.
Funding support Finland, Norway, 3items
OrganizationGrant numberCountry
Academy of Finland Finland
Sigrid Juselius Foundation Finland
Research Council of Norway Norway
CitationJournal: Plos Biol. / Year: 2019
Title: Atomic view into Plasmodium actin polymerization, ATP hydrolysis, and fragmentation.
Authors: Kumpula, E.P. / Lopez, A.J. / Tajedin, L. / Han, H. / Kursula, I.
History
DepositionNov 9, 2018Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 26, 2019Provider: repository / Type: Initial release
Revision 1.1Jan 24, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_alt_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_alt_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_ptnr1_label_alt_id / _struct_conn.pdbx_ptnr2_label_alt_id / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Actin-1
G: Gelsolin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)57,72612
Polymers56,2882
Non-polymers1,43910
Water12,412689
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: homology
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5080 Å2
ΔGint-67 kcal/mol
Surface area20360 Å2
MethodPISA
Unit cell
Length a, b, c (Å)68.760, 71.450, 110.040
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number18
Space group name H-MP21221
Space group name HallP22ab(y,z,x)
Symmetry operation#1: x,y,z
#2: x+1/2,-y,-z+1/2
#3: -x,y,-z
#4: -x+1/2,-y,z+1/2
Components on special symmetry positions
IDModelComponents
11A-827-

HOH

21A-946-

HOH

31A-1003-

HOH

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Components

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Protein , 2 types, 2 molecules AG

#1: Protein Actin-1 / Actin I


Mass: 42047.676 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Plasmodium falciparum (malaria parasite P. falciparum)
Gene: PFL2215w / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q8I4X0
#2: Protein Gelsolin / Actin-depolymerizing factor / ADF / Brevin


Mass: 14239.979 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Gsn, Gsb / Production host: Escherichia coli (E. coli) / References: UniProt: P13020

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Non-polymers , 9 types, 699 molecules

#3: Chemical ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Feature type: SUBJECT OF INVESTIGATION / Comment: ATP, energy-carrying molecule*YM
#4: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: ADP, energy-carrying molecule*YM
#5: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: K / Feature type: SUBJECT OF INVESTIGATION
#7: Chemical ChemComp-SCN / THIOCYANATE ION


Mass: 58.082 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: CNS
#8: Chemical ChemComp-BTB / 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL / BIS-TRIS BUFFER


Mass: 209.240 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H19NO5 / Comment: pH buffer*YM
#9: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#10: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#11: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 689 / 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: 2.39 Å3/Da / Density % sol: 48.59 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 6
Details: 23%(w/v) PEG3350, 0.1 M BIS-TRIS pH 6.0, 0.2M K-SCN; 20% PEG400 used for cryoprotection

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: PETRA III, EMBL c/o DESY / Beamline: P13 (MX1) / Wavelength: 1.031 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Sep 19, 2013
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.031 Å / Relative weight: 1
ReflectionResolution: 1.24→59.93 Å / Num. obs: 152407 / % possible obs: 98.8 % / Redundancy: 7 % / Biso Wilson estimate: 12.4 Å2 / CC1/2: 1 / Rmerge(I) obs: 0.062 / Net I/σ(I): 17.5
Reflection shellResolution: 1.24→1.28 Å / Redundancy: 4.9 % / Rmerge(I) obs: 1.071 / Mean I/σ(I) obs: 1.3 / Num. unique obs: 13428 / CC1/2: 0.509 / Rpim(I) all: 0.5109 / Rrim(I) all: 1.193 / % possible all: 88.2

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Processing

Software
NameVersionClassification
PHENIX1.13_2998refinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4CBU

4cbu


Resolution: 1.24→59.93 Å / SU ML: 0.1323 / Cross valid method: FREE R-VALUE / σ(F): 1.4 / Phase error: 14.6308
RfactorNum. reflection% reflection
Rfree0.1551 1975 1.3 %
Rwork0.1303 --
obs0.1306 152395 98.76 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso mean: 18.76 Å2
Refinement stepCycle: LAST / Resolution: 1.24→59.93 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3726 0 83 689 4498
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.01064991
X-RAY DIFFRACTIONf_angle_d1.2066869
X-RAY DIFFRACTIONf_chiral_restr0.085715
X-RAY DIFFRACTIONf_plane_restr0.0088924
X-RAY DIFFRACTIONf_dihedral_angle_d14.41351934
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.24-1.270.37581210.31319028X-RAY DIFFRACTION84
1.27-1.30.24031340.228710725X-RAY DIFFRACTION99.5
1.3-1.340.23441510.190210758X-RAY DIFFRACTION99.95
1.34-1.390.17631380.165110768X-RAY DIFFRACTION99.94
1.39-1.430.1661360.142410797X-RAY DIFFRACTION99.84
1.43-1.490.14371490.126210805X-RAY DIFFRACTION99.98
1.49-1.560.15961370.116610804X-RAY DIFFRACTION99.97
1.56-1.640.13851480.110510821X-RAY DIFFRACTION99.89
1.64-1.750.13341420.101910844X-RAY DIFFRACTION99.95
1.75-1.880.13331380.104810855X-RAY DIFFRACTION99.97
1.88-2.070.13041440.10710869X-RAY DIFFRACTION99.78
2.07-2.370.13681450.110310954X-RAY DIFFRACTION99.97
2.37-2.980.13871460.124311029X-RAY DIFFRACTION99.93
2.98-600.16381460.139811363X-RAY DIFFRACTION99.87

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