2GUV

Conformational Transition between Four- and Five-stranded Phenylalanine Zippers Determined by a Local Packing Interaction

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	298	0.1M Tris-HCl, 15% isopropanol, 1,4-butanediol, 23% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.89	α = 90
b = 48.847	β = 100.53
c = 68.331	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	IMAGE PLATE	MAR scanner 345 mm plate		2005-09-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4C	0.9795	NSLS	X4C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	67.1	96.4	0.052	0.052	13.3	4.3	40518	40518			12.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.4	1.42	97.1		0.323	0.323	3.8	3.2	2034

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	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	THROUGHOUT	PDB ENTRY 2GUS	1.4	67.1	36447	36447	4071	96.3	0.1986	0.19868	0.19296	0.2521	RANDOM	22.626

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]
0.43		0.26	-0.08		-0.26

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.886
r_dihedral_angle_4_deg	17.747
r_dihedral_angle_3_deg	14.966
r_scangle_it	4.106
r_dihedral_angle_1_deg	4.094
r_scbond_it	2.822
r_mcangle_it	1.664
r_angle_refined_deg	1.25
r_mcbond_it	0.989
r_nbtor_refined	0.322

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.886
r_dihedral_angle_4_deg	17.747
r_dihedral_angle_3_deg	14.966
r_scangle_it	4.106
r_dihedral_angle_1_deg	4.094
r_scbond_it	2.822
r_mcangle_it	1.664
r_angle_refined_deg	1.25
r_mcbond_it	0.989
r_nbtor_refined	0.322
r_nbd_refined	0.214
r_symmetry_vdw_refined	0.192
r_xyhbond_nbd_refined	0.179
r_symmetry_hbond_refined	0.133
r_chiral_restr	0.092
r_bond_refined_d	0.014
r_gen_planes_refined	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2420
Nucleic Acid Atoms
Solvent Atoms	246
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.