2V8A

The structure of Thermosynechococcus elongatus allophycocyanin at 3.5 Angstroems.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ALL	PDB ENTRY 1ALL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP			HANGING DROP VAPOUR DIFFUSION OF EQUAL VOLUMES OF 10MG/ML PROTEIN SOLUTION AND 1M AMMONIUM SULFATE ABOVE A RESERVOIR OF 1 M AMMONIUM SULFATE.

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 102.177	α = 90
b = 102.177	β = 90
c = 193.984	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	100	CCD	MARRESEARCH		2006-08-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA		SLS	X06SA

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	3.5	43.15	99.5	0.22	2.7	4.52		22898

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	3.5	3.69	99.9		0.37	1.68	4.69

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1ALL	3.5	43.15	4813	257	98.9	0.261	0.26	0.24	0.285	0.27	RANDOM	38.12

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]
-0.35	-0.17		-0.35		0.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	26.98
r_dihedral_angle_4_deg	11.225
r_dihedral_angle_3_deg	9.262
r_dihedral_angle_1_deg	3.384
r_angle_refined_deg	1.399
r_angle_other_deg	0.766
r_nbtor_refined	0.159
r_nbd_other	0.143
r_nbd_refined	0.138
r_xyhbond_nbd_refined	0.111
r_symmetry_vdw_other	0.108
r_nbtor_other	0.081
r_symmetry_vdw_refined	0.058
r_chiral_restr	0.032
r_symmetry_hbond_refined	0.031
r_scangle_it	0.012
r_scbond_it	0.009
r_bond_refined_d	0.005
r_mcbond_it	0.005
r_mcangle_it	0.005
r_gen_planes_other	0.003
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2437
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	86

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing