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PDB | 3G6B | Crystal structure of a Soluble Chemoreceptor from Thermotoga maritima Asn217Ile mutant

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Internal ID
64196
PDB Entry ID
3G6B
Title
Crystal structure of a Soluble Chemoreceptor from Thermotoga maritima Asn217Ile mutant
Authors
Pollard, A.M.,Bilwes, A.M.,Crane, B.R.
Primary Citation
AuthorsPollard, A.M., Bilwes, A.M., Crane, B.R.
TitleThe structure of a soluble chemoreceptor suggests a mechanism for propagating conformational signals.
JournalBiochemistry, v.48, pp.1936 - 1944, 2009
AbstractView
Pubmed19149470
DOI10.1021/bi801727m
 
History
Deposition: 2009-02-06Release: 2009-07-28Last Modified:
Experimental Method
TypeX-RAY DIFFRACTION
Parameters
Resolution [Å]R-Value (Obs.)R-Value (Work)R-FreeSpace Group
3.00n/a0.2590.305P 1 21 1
Unit Cell
Length [Å]a69.35b25.70c119.92
Angles [°]alpha90.00beta94.13gamma90.00
Molecular Description
PolymerMoleculeMutationFragmentChainsEC NumberOther details
1Methyl-accepting chemotaxis proteinN217IA, B
Functional Class
Source
PolymerScientific NameCommon NameExpression System
1Thermotoga maritimaEscherichia coli
Related PDB Entries
IDDetails
3G67Crystal Structure of a Soluble Chemoreceptor from Thermotoga maritima
SCOP Classification
CATH Classification
Structural Details
KeywordSIGNALING PROTEIN
Textfour-helix bundle, methyl-accepting chemotaxis protein, SIGNALING PROTEIN
 
Polymeric Molecules
Chain A
DescriptionMethyl-accepting chemotaxis protein
MutationN217I
Polymer typepolypeptide
Formula Weight24133.5
Source Methodgenetically manipulated
Entity Name Sysn/a
 
Chain B
DescriptionMethyl-accepting chemotaxis protein
MutationN217I
Polymer typepolypeptide
Formula Weight24133.5
Source Methodgenetically manipulated
Entity Name Sysn/a
 
Entity Poly
EntityChiralityLinkageMonomer# Mon.StrandTypeDetails
1n/anonon/aA,Bpolypeptide(L)n/a
Natural/Genetically Modified Source
Scientific NameThermotoga maritima
Source Genusn/a
GeneTM0014, TM_0014
Host Common Namen/a
Host Scientific NameEscherichia coli
Host Genusn/a
Host Cell Linen/a
Host StrainB21 (DE3)
Host Vector Typen/a
Host Plasmidpet28a
 
Crystallization Experiments
MethodVAPOR DIFFUSION, HANGING DROP
PH7.5
Temperature298.0
DetailsDioxane, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
 
Unit Cell
Length a (Å)Length b Å)Length c (Å)
69.3525.70119.92
Angle Alpha (°)Angle Beta (°)Angle Gamma (°)
90.0094.1390.00
Space Group
P 1 21 1
Diffraction Detector
DetectorCCD
TypeADSC QUANTUM 315r
Detailsn/a
Collection Daten/a
 
Diffraction Radiation
Monochromatorn/a
Diffraction ProtocolSINGLE WAVELENGTH
Wavelengthn/a
Wavelength List0.9789
 
Diffraction Source
SourceSYNCHROTRON
TypeAPS BEAMLINE 24-ID-E
SiteAPS
Beamline24-ID-E
 
Reflection Details
Observed Criterion Sigma (F)n/a
Observed Criterion Sigma (I)n/a
Resolution (High)3.00
Resolution (Low)20.00
Number Reflections (All) n/a
Number Reflections (Observed)8972
Percent Possible (Observed)99.8
R Merge I (Observed)n/a
Net I Over Average Sigma (I)n/a
B (Isotropic) From Wilson Plot52.6
Redundancyn/a
 
Refinement Statistics
Structure Solution MethodMOLECULAR REPLACEMENT
Resolution (High)3.00
Resolution (Low)20.00
Cut-off Sigma (F)2.0
Cut-off Sigma (I)n/a
Number of Reflections (All)8957
Number of Reflections (Observed)8691
Number of Reflections (R-Free) 7777
Percent Reflections (Observed)97.00
R-Factor (All)n/a
R-Factor (Observed)n/a
R-Work0.259
R-Free0.305
R-Free Selection Detailsn/a
 
Temperature Factor Modeling
Isotropic Thermal Modeln/a
Mean Isotropic B Valuen/a
Anisotropic B[1][1]n/a
Anisotropic B[1][2]n/a
Anisotropic B[1][3]n/a
Anisotropic B[2][2]n/a
Anisotropic B[2][3]n/a
Anisotropic B[3][3]n/a
 
RMS Deviations
Parameter TypeDeviation From Ideal
c_bond_d1.258
c_angle_deg0.010059
Number of Non-Hydrogen Atoms Used in Refinement
Protein Atoms3365
Nucleic Acid Atoms0
Heterogen Atoms0
Solvent Atoms416
 
Programs
Data CollectionADSC Quantum
Data Reduction (intensity integration)HKL-2000
Data Reduction (data scaling)HKL-2000
Structure SolutionCNS
Structure RefinementCNS 1.1
 
Software
Classificationdata collection
Software NameADSC
Software Version Quantum
 
Classificationmodel building
Software NameCNS
 
Classificationrefinement
Software NameCNS
Software Version 1.1
 
Sequence Chain
A
Sequence
  1   RIEEVKERFV  NLNRLFQELV  GDFQAKSDQL  VSVIQDMEKI  SENIMEELKK  SGTNVDQIVE

 61   RVKEASSQIG  ETLENIRSIE  KLIQNIMRIA  RETNILALNA  TIEAARAGEA  GKGFMIVANE

121   VQNLSNETNE  VTKQIVEKAR  EILESSQRSL  ENLEFMANLF  ETVGKTLQNM  VRFMENIVKL

181   LQEVRNSLDT  SKESLSEKSA  EIDSATKVLE  ETA  

Sequence Chain
B
Sequence
  1   RIEEVKERFV  NLNRLFQELV  GDFQAKSDQL  VSVIQDMEKI  SENIMEELKK  SGTNVDQIVE

 61   RVKEASSQIG  ETLENIRSIE  KLIQNIMRIA  RETNILALNA  TIEAARAGEA  GKGFMIVANE

121   VQNLSNETNE  VTKQIVEKAR  EILESSQRSL  ENLEFMANLF  ETVGKTLQNM  VRFMENIVKL

181   LQEVRNSLDT  SKESLSEKSA  EIDSATKVLE  ETA