1FFR

CRYSTAL STRUCTURE OF CHITINASE A MUTANT Y390F COMPLEXED WITH HEXA-N-ACETYLCHITOHEXAOSE (NAG)6

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	291	0.75 M CITRATE-NA AND 20% (V/V) METHANOL, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 291.0K

Crystal Properties
Matthews coefficient	Solvent content
3.25	62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 200.172	α = 90
b = 131.921	β = 90
c = 59.268	γ = 90

Symmetry
Space Group	C 2 2 21

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	PAIR OF NICKEL MIRRORS	2000-04-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7A		EMBL/DESY, HAMBURG	BW7A

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	10	93.7	0.061	23.4	3.4	68036	68036			22

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	1.8	1.86	96.8		0.204	6.2		6945

Refinement

Statistics
Diffraction ID	Structure Solution 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	1EDQ	1.8	10	68015	68015	3453		0.186	0.186	0.183	0.229	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]

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	25.9
p_staggered_tor	13.6
p_planar_tor	6.5
p_scangle_it	2.73
p_mcangle_it	1.97
p_scbond_it	1.81
p_mcbond_it	1.42
p_multtor_nbd	0.28
p_xyhbond_nbd	0.23
p_singtor_nbd	0.186

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	25.9
p_staggered_tor	13.6
p_planar_tor	6.5
p_scangle_it	2.73
p_mcangle_it	1.97
p_scbond_it	1.81
p_mcbond_it	1.42
p_multtor_nbd	0.28
p_xyhbond_nbd	0.23
p_singtor_nbd	0.186
p_chiral_restr	0.126
p_planar_d	0.033
p_angle_d	0.027
p_bond_d	0.012
n_plane_restr	0.012

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4136
Nucleic Acid Atoms
Solvent Atoms	773
Heterogen Atoms	99

Software

Software
Software Name	Purpose
MAR345	data collection
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement

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.