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- PDB-3m0q: Crystal Structure of the R21D mutant of alpha-spectrin SH3 domain... -

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Basic information

Entry
Database: PDB / ID: 3m0q
TitleCrystal Structure of the R21D mutant of alpha-spectrin SH3 domain. Crystal obtained in ammonium sulphate at pH 5.
ComponentsSpectrin alpha chain, brain
KeywordsSIGNALING PROTEIN / SH3-like barrel / Actin capping / Actin-binding / Calmodulin-binding / Cytoskeleton / Phosphoprotein / SH3 domain
Function / homology
Function and homology information


actin filament capping / costamere / cortical actin cytoskeleton / cell projection / actin filament binding / cell junction / actin cytoskeleton organization / calmodulin binding / calcium ion binding / plasma membrane
Similarity search - Function
Alpha Spectrin, SH3 domain / EF-hand, Ca insensitive / Ca2+ insensitive EF hand / Ca2+ insensitive EF hand / Spectrin repeat / Spectrin repeat / Spectrin/alpha-actinin / Spectrin repeats / SH3 Domains / SH3 domain ...Alpha Spectrin, SH3 domain / EF-hand, Ca insensitive / Ca2+ insensitive EF hand / Ca2+ insensitive EF hand / Spectrin repeat / Spectrin repeat / Spectrin/alpha-actinin / Spectrin repeats / SH3 Domains / SH3 domain / EF-hand domain pair / EF-hand, calcium binding motif / SH3 type barrels. / Src homology 3 domains / SH3-like domain superfamily / EF-Hand 1, calcium-binding site / Src homology 3 (SH3) domain profile. / SH3 domain / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair / Roll / Mainly Beta
Similarity search - Domain/homology
Spectrin alpha chain, non-erythrocytic 1
Similarity search - Component
Biological speciesGallus gallus (chicken)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 1.75 Å
AuthorsCamara-Artigas, A. / Gavira, J.A.
CitationJournal: Acta Crystallogr.,Sect.D / Year: 2011
Title: Understanding the polymorphic behaviour of a mutant of the alpha-spectrin SH3 domain by means of two 1.1 A structures
Authors: Camara-Artigas, A. / Gavira, J.A. / Casares, S. / Garcia-Ruiz, J.M. / Conejero-Lara, F. / Allen, J.P. / Martinez, J.
History
DepositionMar 3, 2010Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 19, 2011Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Nov 8, 2017Group: Refinement description / Category: software
Revision 1.3Oct 13, 2021Group: Database references / Derived calculations / Experimental preparation
Category: database_2 / exptl_crystal_grow ...database_2 / exptl_crystal_grow / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _exptl_crystal_grow.method / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Sep 6, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Spectrin alpha chain, brain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)7,2832
Polymers7,1871
Non-polymers961
Water57632
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)34.195, 42.254, 48.622
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Spectrin alpha chain, brain / Spectrin / non-erythroid alpha chain / Fodrin alpha chain


Mass: 7187.138 Da / Num. of mol.: 1 / Fragment: UNP residues 965 to 1025 / Mutation: R21D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Gallus gallus (chicken) / Gene: SPTAN1, SPTA2 / Plasmid: pET26 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P07751
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 32 / 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: 2.44 Å3/Da / Density % sol: 49.67 %
Crystal growTemperature: 298 K / Method: counter-diffusion / pH: 5
Details: 0.8 M ammonium sulphate, 0.1 M sodium acetate pH 5, counter diffusion, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: BM16 / Wavelength: 1.033 Å
DetectorType: CCD ADSC_Q210 / Detector: CCD / Date: Jun 24, 2009
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.033 Å / Relative weight: 1
ReflectionResolution: 1.746→31.894 Å / Num. all: 7527 / Num. obs: 7512 / % possible obs: 99.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 6.9 % / Biso Wilson estimate: 16.921 Å2 / Rmerge(I) obs: 0.075 / Rsym value: 0.075 / Net I/σ(I): 16.7
Reflection shellResolution: 1.75→1.81 Å / Redundancy: 6.8 % / Rmerge(I) obs: 0.337 / Mean I/σ(I) obs: 7.2 / Num. unique all: 727 / Rsym value: 0.337 / % possible all: 100

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Phasing

PhasingMethod: molecular replacement
Phasing MR
Highest resolutionLowest resolution
Rotation1.88 Å19.38 Å
Translation1.88 Å19.38 Å

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Processing

Software
NameVersionClassificationNB
SCALAdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACT3.005data extraction
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1SHG

1shg


Resolution: 1.75→20 Å / Cor.coef. Fo:Fc: 0.964 / Cor.coef. Fo:Fc free: 0.935 / WRfactor Rfree: 0.26 / WRfactor Rwork: 0.195 / Occupancy max: 1 / Occupancy min: 0.5 / FOM work R set: 0.868 / SU B: 1.955 / SU ML: 0.061 / SU R Cruickshank DPI: 0.095 / SU Rfree: 0.108 / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / ESU R: 0.095 / ESU R Free: 0.108 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.228 341 4.6 %RANDOM
Rwork0.17 ---
all0.17279 7096 --
obs0.173 7437 99.25 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso max: 65.55 Å2 / Biso mean: 21.523 Å2 / Biso min: 4.1 Å2
Baniso -1Baniso -2Baniso -3
1-2.47 Å20 Å20 Å2
2---1.89 Å20 Å2
3----0.58 Å2
Refinement stepCycle: LAST / Resolution: 1.75→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms460 0 5 32 497
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0140.022477
X-RAY DIFFRACTIONr_angle_refined_deg1.7751.976649
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.917557
X-RAY DIFFRACTIONr_dihedral_angle_2_deg42.80226.36422
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.41589
X-RAY DIFFRACTIONr_dihedral_angle_4_deg36.745151
X-RAY DIFFRACTIONr_chiral_restr0.1650.273
X-RAY DIFFRACTIONr_gen_planes_refined0.0140.021356
X-RAY DIFFRACTIONr_mcbond_it2.2291.5286
X-RAY DIFFRACTIONr_mcangle_it4.1122466
X-RAY DIFFRACTIONr_scbond_it5.9153191
X-RAY DIFFRACTIONr_scangle_it10.0964.5183
LS refinement shellResolution: 1.75→1.795 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.282 18 -
Rwork0.237 487 -
all-505 -
obs--94.39 %

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