3F45

Structure of the R75A mutant of rat alpha-Parvalbumin

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	290	3.2 Ammonium sulfate, 2% PEG 600, 100mM MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
1.776738	30.772001

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 27.315	α = 90
b = 55.05	β = 105.56
c = 28.768	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MARRESEARCH	osmic mirrors	2005-10-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.542

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	27.71	97.5	0.047		3.8		5621		2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	THROUGHOUT	PDB ENTRY 1RTP	2	27.71	5621	5480	251	97.54	0.158	0.14726	0.14436	0.20485	RANDOM	12.078

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.878
r_dihedral_angle_3_deg	13.568
r_dihedral_angle_1_deg	5.909
r_scangle_it	3.551
r_scbond_it	2.492
r_angle_refined_deg	1.595
r_mcangle_it	1.426
r_mcbond_it	0.908
r_nbtor_refined	0.306
r_nbd_refined	0.225
r_symmetry_hbond_refined	0.217
r_xyhbond_nbd_refined	0.188
r_symmetry_vdw_refined	0.165
r_metal_ion_refined	0.105
r_chiral_restr	0.096
r_bond_refined_d	0.016
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	822
Nucleic Acid Atoms
Solvent Atoms	155
Heterogen Atoms	12

Software

Software
Software Name	Purpose
EPMR	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling