8D7B

Crystal structure of hen egg white lysozyme at 225 Kelvin

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	295	1.2 M NaCl and 100 mM AcONa pH 4.6

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.178	α = 90
b = 79.178	β = 90
c = 37.136	γ = 90

Symmetry
Space Group	P 43 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	225	CMOS	BRUKER PHOTON 100		2020-11-04	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER TURBO X-RAY SOURCE	1.54184

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	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	1.5	22.36	99.6	0.787	4.48	1.9		19544

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.5	22.36			0.787

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	3A8Z	1.5	22.36	19544	998	99.597	0.193	0.1914	0.2258	15.866

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]
0.002			0.002		-0.005

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.963
r_dihedral_angle_4_deg	20.667
r_dihedral_angle_3_deg	13.159
r_dihedral_angle_1_deg	6.789
r_lrange_it	4.183
r_lrange_other	4.175
r_scangle_it	3.344
r_scangle_other	3.342
r_scbond_it	2.168
r_scbond_other	2.165
r_mcangle_it	1.883
r_mcangle_other	1.882
r_angle_refined_deg	1.718
r_angle_other_deg	1.53
r_mcbond_it	1.307
r_mcbond_other	1.307
r_nbd_refined	0.234
r_symmetry_nbd_other	0.195
r_nbtor_refined	0.17
r_nbd_other	0.158
r_xyhbond_nbd_refined	0.137
r_symmetry_nbd_refined	0.123
r_chiral_restr	0.089
r_symmetry_xyhbond_nbd_refined	0.086
r_symmetry_nbtor_other	0.085
r_metal_ion_refined	0.07
r_bond_refined_d	0.012
r_gen_planes_refined	0.011
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	69
Heterogen Atoms	20

Software

Software
Software Name	Purpose
REFMAC	refinement
SAINT	data reduction