1FK6

STRUCTURAL BASIS OF NON-SPECIFIC LIPID BINDING IN MAIZE LIPID-TRANSFER PROTEIN COMPLEXES WITH ALPHA-LINOLENIC ACID REVEALED BY HIGH-RESOLUTION X-RAY CRYSTALLOGRAPHY

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1MZL	(PDB CODE:1MZL)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		298	4.4M Na formate, 0.1M bezene sulfornic acid, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.42	49.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 25.04	α = 90
b = 50.36	β = 90
c = 69.47	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	298	AREA DETECTOR	ENRAF-NONIUS		1999-11-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	1.8		92.6	0.047		2.65		6996

Refinement

Statistics
Diffraction ID	Structure Solution 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	Mean Isotropic B
X-RAY DIFFRACTION	MR	(PDB CODE:1MZL)	1.9	8	2	6390	350	92.6	0.207	0.207	0.274

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_angle_deg	1.7
x_bond_d	0.015

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	625
Nucleic Acid Atoms
Solvent Atoms	71
Heterogen Atoms	20

Software

Software
Software Name	Purpose
MADNESS	data collection
PROFILE-FITTING	data reduction
X-PLOR	model building
X-PLOR	refinement
MADNESS	data reduction
PROFILE-FITTING	data scaling
X-PLOR	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.