- PDB-5ndx: The bacterial orthologue of Human a-L-iduronidase does not need N... -
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Open data
ID or keywords:
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Basic information
Entry
Database: PDB / ID: 5ndx
Title
The bacterial orthologue of Human a-L-iduronidase does not need N-glycan post-translational modifications to be catalytically competent: Crystallography and QM/MM insights into Mucopolysaccharidosis I
Components
Glycosyl hydrolase
Keywords
HYDROLASE / Human a-L-iduronidase / Mucopolysaccharidosis I / Catalytic itinerary / Reaction coordinates / Catalytic mechanism / N-glycosylation site / Rhizobium leguminosarum / Iduronidase
Function / homology
Function and homology information
hydrolase activity, hydrolyzing O-glycosyl compounds / carbohydrate metabolic process Similarity search - Function
Mass: 68879.070 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: This enzyme is the inactive mutant Glu146Gln of Rhizobium leguminosarum Iduronidase Source: (gene. exp.) Rhizobium leguminosarum bv. trifolii (bacteria) Gene: BAE36_24485 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A1B8R7L2
Mass: 18.015 Da / Num. of mol.: 384 / Source method: isolated from a natural source / Formula: H2O
Has protein modification
Y
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Experimental details
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Experiment
Experiment
Method: X-RAY DIFFRACTION / Number of used crystals: 1
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Sample preparation
Crystal grow
Temperature: 291 K / Method: vapor diffusion, sitting drop Details: 1 M succinic acid, 1% PEG 2000 MME and 100 mM HEPES pH 7
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Data collection
Diffraction
Mean temperature: 100 K
Diffraction source
Source: SYNCHROTRON / Site: ALBA / Beamline: XALOC / Wavelength: 0.979 Å
Detector
Type: DECTRIS PILATUS3 S 6M / Detector: PIXEL / Date: Dec 30, 2014
Radiation
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
Wavelength: 0.979 Å / Relative weight: 1
Reflection
Resolution: 2.2→20 Å / Num. obs: 70222 / % possible obs: 99.9 % / Redundancy: 22.2 % / Rmerge(I) obs: 0.061 / Rpim(I) all: 0.013 / Net I/σ(I): 38.9
Reflection shell
Resolution: 2.2→2.32 Å / Redundancy: 22.5 % / Rmerge(I) obs: 0.64 / Mean I/σ(I) obs: 5.6 / Rpim(I) all: 0.137 / % possible all: 100
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Processing
Software
Name
Version
Classification
REFMAC
5.8.0155
refinement
XDS
datareduction
SCALA
datascaling
MOLREP
phasing
Refinement
Method to determine structure: MOLECULAR REPLACEMENT Starting model: See our manuscript for the template Resolution: 2.2→149.85 Å / Cor.coef. Fo:Fc: 0.969 / Cor.coef. Fo:Fc free: 0.963 / SU B: 5.414 / SU ML: 0.073 / Cross valid method: THROUGHOUT / ESU R: 0.117 / ESU R Free: 0.108 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.17499
1939
2.8 %
RANDOM
Rwork
0.15865
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obs
0.15913
68241
99.81 %
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Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å