- PDB-4a1r: The Structure of Serratia marcescens Lip, a membrane bound compon... -
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Basic information
Entry
Database: PDB / ID: 4a1r
Title
The Structure of Serratia marcescens Lip, a membrane bound component of the Type VI Secretion System.
Components
LIP
Keywords
MEMBRANE PROTEIN / T6SS / BETA-SANDWICH
Function / homology
Type VI secretion system, lipoprotein SciN / Type VI secretion system, lipoprotein SciN / Type VI secretion protein SciN-like superfamily / Type VI secretion lipoprotein, VasD, EvfM, TssJ, VC_A0113 / Immunoglobulin-like / Sandwich / Mainly Beta / LIP
Mass: 18.015 Da / Num. of mol.: 334 / Source method: isolated from a natural source / Formula: H2O
Nonpolymer details
ETHAN-1,2-DIOL (EDO): EDO D1176
Sequence details
GENOME IS NOT YET IN ANY DATABASE
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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
Density Matthews: 2.27 Å3/Da / Density % sol: 45 % Description: THE MODEL USED FOR MOLECULAR REPLACEMENT WAS INITIALLY SOLVED USING SAD. STRUCTURE NOT DEPOSITED IN PDB.
Monochromator: SI(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
Wavelength: 1.007 Å / Relative weight: 1
Reflection
Resolution: 1.92→40 Å / Num. obs: 43478 / % possible obs: 98.2 % / Observed criterion σ(I): 0 / Redundancy: 6.5 % / Biso Wilson estimate: 32.7 Å2 / Rmerge(I) obs: 0.05 / Net I/σ(I): 20.6
Reflection shell
Resolution: 1.92→2.02 Å / Redundancy: 6.2 % / Rmerge(I) obs: 0.44 / Mean I/σ(I) obs: 3.7 / % possible all: 95.8
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Processing
Software
Name
Version
Classification
REFMAC
5.6.0117
refinement
XDS
datareduction
SCALA
datascaling
PHASER
phasing
Refinement
Method to determine structure: MOLECULAR REPLACEMENT Starting model: MODEL FROM SAD EXPERIMENT Resolution: 1.92→39.82 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.921 / SU B: 5.853 / SU ML: 0.167 / Cross valid method: THROUGHOUT / ESU R: 0.201 / ESU R Free: 0.195 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. THE FOLLOWING RESIDUES ARE DISORDERED. C,51-52, D,51-54, B,143-146, C,144-146. RESIDUES WITH WEAK SIDE CHAIN ELECTRON DENSITY HAVE OCCUPANCY SET TO 0.01.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.29158
2200
5.1 %
RANDOM
Rwork
0.22036
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obs
0.22392
41277
97.98 %
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Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK