3PYJ | pdb_00003pyj

Reduced sweetness of a monellin (MNEI) mutant results from increased protein flexibility and disruption of a distant poly-(L-proline) II helix

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	293	3.6 M sodium formate and 10% v/v glycerol, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.01	59.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.666	α = 90
b = 48.666	β = 90
c = 114.773	γ = 90

Symmetry
Space Group	P 41 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100				2004-10-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2	37.12	100				9968	2	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2	44.81	9968	8942	969	99.93	0.23492	0.23111	0.24	0.27022	0.24	RANDOM	35.192

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.21			-0.21		0.43

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.766
r_dihedral_angle_4_deg	21.623
r_dihedral_angle_3_deg	16.762
r_dihedral_angle_1_deg	6.738
r_scangle_it	4.576
r_scbond_it	2.924
r_mcangle_it	2.025
r_angle_refined_deg	1.664
r_mcbond_it	1.41
r_nbtor_refined	0.312
r_nbd_refined	0.215
r_symmetry_hbond_refined	0.184
r_xyhbond_nbd_refined	0.177
r_symmetry_vdw_refined	0.17
r_chiral_restr	0.131
r_bond_refined_d	0.018
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	799
Nucleic Acid Atoms
Solvent Atoms	61
Heterogen Atoms	3

Software

Software
Software Name	Purpose
ADSC	data collection
AMoRE	phasing
REFMAC	refinement
MOSFLM	data reduction
PROTEUM PLUS	data scaling