2Y5M

STRUCTURE OF LINEAR GRAMICIDIN D OBTAINED USING TYPE I CRYSTALS GROWN IN A 7.7 MONOACYLGLYCEROL LIPID CUBIC PHASE.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIPIDIC CUBIC PHASE	5.5		25 %(W/V) PEG 3350, 0.2 M LISO4, 0.1 M BIS TRIS AT PH 5.5, LIPIDIC CUBIC PHASE OF 7.7 MAG (SN-1-O-(CIS-7)TETRADECENYLGLYCEROL) WAS USED IN A RATIO OF 1:20 (MOL/MOL) GRAMICIDIN D TO LIPID.

Crystal Properties
Matthews coefficient	Solvent content
2.58	52.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 30.639	α = 90
b = 62.794	β = 100.02
c = 30.664	γ = 90

Symmetry
Space Group	P 1 21 1

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 MX-300	SI(111) DOUBLE CRYSTAL	2008-08-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-B		APS	23-ID-B

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	1.08	30.2	94.9	0.1	15.8	6.3		46435		2	5.5

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	1.08	1.1	65		0.42	2.4	3.6

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 1AL4	1.08	30.2	44055	2380	94.95	0.13167	0.13041	0.15461	RANDOM	12.7

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]
0.34		0.11	-0.65		0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.474
r_sphericity_free	16.436
r_dihedral_angle_3_deg	9.794
r_sphericity_bonded	7.531
r_scangle_it	7.117
r_scbond_it	5.307
r_dihedral_angle_1_deg	4.732
r_mcangle_it	4.018
r_rigid_bond_restr	2.878
r_mcbond_it	2.828
r_angle_refined_deg	1.704
r_mcbond_other	1.368
r_angle_other_deg	0.813
r_chiral_restr	0.151
r_bond_refined_d	0.02
r_gen_planes_refined	0.014
r_bond_other_d	0.007
r_gen_planes_other	0.002
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	816
Nucleic Acid Atoms
Solvent Atoms	3
Heterogen Atoms	91

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing