1UHK

Crystal structure of n-aequorin

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.1	293	Ammonium sulfate, pH 7.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.96	36.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 34.223	α = 72.35
b = 57.038	β = 79.97
c = 57.768	γ = 67.89

Symmetry
Space Group	P 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	CCD	OXFORD PX210	mirrors		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL44XU	0.9	SPring-8	BL44XU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.6	43.5	93.4	0.044	14.5	1.8	50773	50773			13.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.6	1.66	79.9		0.131		1.2

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.6	33.3	45000	2362	93.28	0.1657	0.16401	0.19854	RANDOM	12.765

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]
-0.01	-0.03	0.02			0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.036
r_scangle_it	3.983
r_scbond_it	2.471
r_angle_refined_deg	1.542
r_mcangle_it	1.425
r_angle_other_deg	0.936
r_mcbond_it	0.764
r_symmetry_vdw_refined	0.287
r_symmetry_vdw_other	0.266
r_nbd_other	0.247
r_nbd_refined	0.227
r_symmetry_hbond_refined	0.224
r_xyhbond_nbd_refined	0.176
r_chiral_restr	0.094
r_nbtor_other	0.085
r_bond_refined_d	0.014
r_gen_planes_other	0.01
r_gen_planes_refined	0.009
r_bond_other_d	0.003
r_dihedral_angle_2_deg
r_xyhbond_nbd_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3048
Nucleic Acid Atoms
Solvent Atoms	496
Heterogen Atoms	74

Software

Software
Software Name	Purpose
REFMAC	refinement
d*TREK	data reduction
d*TREK	data scaling
MOLREP	phasing