2W1P

1.4 Angstrom crystal structure of P.pastoris aquaporin, Aqy1, in a closed conformation at pH 8.0

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1J4N	PDB ENTRY 1J4N

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8		28% PEG600, 0.05 M HEPES PH 8.0, 1.0 MM ZNSO4

Crystal Properties
Matthews coefficient	Solvent content
2.77	55.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.929	α = 90
b = 90.929	β = 90
c = 80.624	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	MARRESEARCH	MIRRORS	2007-09-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2		ESRF	ID23-2

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	1.4	64.5	100	0.09	12.2	5.3		65261		1.8	11.235

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	1.4	1.48	100		0.71	1.8	3.4

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1J4N	1.4	64.282	64431	3261	99.978	0.161	0.1602	0.1785	RANDOM	11.401

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]
-0.149			-0.149		0.299

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.643
r_dihedral_angle_4_deg	18.36
r_dihedral_angle_3_deg	12.772
r_dihedral_angle_1_deg	4.336
r_scangle_it	1.967
r_scbond_it	1.42
r_angle_refined_deg	1.07
r_mcangle_it	1.003
r_mcbond_it	0.684
r_nbtor_refined	0.32
r_nbd_refined	0.203
r_symmetry_vdw_refined	0.164
r_xyhbond_nbd_refined	0.114
r_symmetry_hbond_refined	0.099
r_chiral_restr	0.07
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_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	2001
Nucleic Acid Atoms
Solvent Atoms	133
Heterogen Atoms	82

Software

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