1JCD

Crystal Structure of a Novel Alanine-Zipper Trimer at 1.3 A Resolution, I6A,L9A,V13A,L16A,V20A,L23A,V27A,M30A,V34A,L48A,M51A mutations

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	277	Sodium acetate, sodium citrate, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K

Crystal Properties
Matthews coefficient	Solvent content
1.5	17.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 21.842	α = 88.05
b = 26.935	β = 84.95
c = 45.805	γ = 87.56

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	95	CCD	BRANDEIS - B4		2001-05-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.1000	NSLS	X25

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	1.3	50	93.6	0.047	14.4	3.8	23835	23835			13.3

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)
	1.3	1.35	83.3		0.106	10.8	3.4	2150

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1JCC	1.3	22.87	23835	23835	2352	93.6	0.149	0.209	RANDOM

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
		1238

RMS Deviations
Key	Refinement Restraint Deviation
s_approx_iso_adps	0.07
s_non_zero_chiral_vol	0.055
s_zero_chiral_vol	0.054
s_similar_adp_cmpnt	0.054
s_angle_d	0.026
s_from_restr_planes	0.017
s_bond_d	0.01
s_anti_bump_dis_restr	0.008
s_rigid_bond_adp_cmpnt	0.005
s_similar_dist

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1052
Nucleic Acid Atoms
Solvent Atoms	186
Heterogen Atoms

Software

Software
Software Name	Purpose
MADNESS	data collection
SCALEPACK	data scaling
AMoRE	phasing
SHELXL-97	refinement
MADNESS	data reduction

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.