Experiment: 1ALX

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		CRYSTALLIZED BY BATCH METHODS FROM A SATURATED SOLUTION OF GRAMICIDIN D IN METHANOL., PH 7.0, BATCH METHOD

Crystal Properties
Matthews coefficient	Solvent content
1.65	25.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 14.907	α = 90
b = 26.014	β = 92.03
c = 31.911	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	120	DIFFRACTOMETER	ENRAF-NONIUS FAST	COLLIMATOR	1990-01-23	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)	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	1.25	100	99.9	85.41	1		7726		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.2	1.24	99		35.53	1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	PDB ENTRY 1GMA	1.2	100	7726	376	99.9	0.102	0.1		0.168	5% OF REFLECTIONS IN THIN RESOLUTION SHELLS.

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
5	367.54	315.41

RMS Deviations
Key	Refinement Restraint Deviation
s_from_restr_planes	0.326
s_zero_chiral_vol	0.167
s_non_zero_chiral_vol	0.119
s_approx_iso_adps	0.045
s_similar_adp_cmpnt	0.033
s_angle_d	0.031
s_bond_d	0.014
s_rigid_bond_adp_cmpnt	0.006
s_similar_dist
s_anti_bump_dis_restr

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	284
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	40

Software

Software
Software Name	Purpose
SHELXL-97	model building
SHELXL-97	refinement
ENRAF-NONIUS	data reduction
SHELXL-97	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.