2BN2

CRYSTAL STRUCTURE OF BOVINE NEUROPHYSIN II COMPLEXED WITH THE VASOPRESSIN ANALOGUE PHE-TYR AMIDE

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.8		5 MG OF PROTEIN WAS DISSOLVED IN 0.5 ML OF WATER, 0.5 MG OF PHENYLALANINE-TYROSINE AMIDE AND 20 MICRO LITERS OF SATURATED AMMONIUM SULPHATE SOLUTION WERE ADDED. THE PH OF THE SOLUTION WAS ADJUSTED TO 6.8

Crystal Properties
Matthews coefficient	Solvent content
2.82	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 121.67	α = 90
b = 67.96	β = 90
c = 62.1	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	289	AREA DETECTOR	SIEMENS	SUPPER MIRRORS	1989-09-13	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

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	2.64		83.6	0.0404	17.05	17		24898		-3	60.2

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	2.64	2.74	43.45		0.1799	3.12

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	SAS	THROUGHOUT	2.8	8	2	11589	1207	92	0.208	0.208	0.262	RANDOM	23.7

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
x_dihedral_angle_d	28.5
x_improper_angle_d	1.94
x_angle_deg	1.1
x_bond_d	0.007
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2232
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	92

Software

Software
Software Name	Purpose
XENGEN	data collection
XENGEN	data reduction
ISAS	model building
X-PLOR	refinement
XENGEN	data scaling
ISAS	phasing