1LL1

HYDROXO BRIDGE MET FORM HEMOCYANIN FROM LIMULUS

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.8		PROTEIN WAS CRYSTALLIZED FROM 4-6% PEG 3350, 0.2M BIS-TRIS, 0.5M NACL, 5MM H2O2. PH IN THE DROP NEAR 6.8.

Crystal Properties
Matthews coefficient	Solvent content
2.6	51.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 116.61	α = 90
b = 116.61	β = 90
c = 285.61	γ = 120

Symmetry
Space Group	H 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	287	AREA DETECTOR	XUONG-HAMLIN MULTIWIRE	COLLIMATOR	1996-09-12	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 Merge I (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	2.5	58.3	87.6	0.08	0.08	7.1	3.9		22669		1	34.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.5	2.6	39.4		0.188	0.188	3.9	1.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1LLA	2.55	60	2	21960	2276	88.6	0.167	0.167	0.23	RANDOM	29.8

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]
17.434	7.064		17.434		17.24

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	23.1
x_scangle_it	6.195
x_scbond_it	4.297
x_mcangle_it	4.242
x_mcbond_it	2.76
x_angle_deg	1.6
x_improper_angle_d	1
x_bond_d	0.006
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4763
Nucleic Acid Atoms
Solvent Atoms	135
Heterogen Atoms	4

Software

Software
Software Name	Purpose
UCSD	data collection
SCALA	data scaling
X-PLOR	model building
X-PLOR	refinement
UCSD	data reduction
CCP4	data scaling
X-PLOR	phasing