3BXA

Monomeric Far-red Fluorescent Protein mKate Crystallized at pH 4.2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.2	293	17.5% w/v PEG 3350, 0.07M citric acid, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.33	47.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 98.181	α = 90
b = 98.181	β = 90
c = 106.452	γ = 90

Symmetry
Space Group	I 4

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARMOSAIC 300 mm CCD			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0	APS	22-ID

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	1.75	30	99.6	0.041	13.4	7.7		50567

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.81	99.1		0.522		7.6	5000

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	1.75	29.07	48843	1032	96.26	0.182	0.18	0.233	RANDOM	27.737

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]
0.04			0.04		-0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.134
r_dihedral_angle_4_deg	15.297
r_dihedral_angle_3_deg	13.674
r_dihedral_angle_1_deg	6.802
r_scangle_it	3.54
r_scbond_it	2.431
r_angle_refined_deg	1.766
r_mcangle_it	1.597
r_mcbond_it	1.013
r_nbtor_refined	0.304
r_symmetry_vdw_refined	0.222
r_nbd_refined	0.214
r_symmetry_hbond_refined	0.194
r_xyhbond_nbd_refined	0.159
r_chiral_restr	0.11
r_bond_refined_d	0.015
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3570
Nucleic Acid Atoms
Solvent Atoms	302
Heterogen Atoms	13

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SERGUI	data collection
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing