2IJA

Human N-acetyltransferase 1 F125S mutant

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8	291	26% peg-4000, 0.2M sodium acetate, 0.1M Tris, pH 7.8, vapor diffusion, hanging drop, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.2	42.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.549	α = 90
b = 37.558	β = 102.7
c = 88.478	γ = 90

Symmetry
Space Group	C 1 2 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	ADSC		2006-09-16	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.96860, 0.97910, 0.97950	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	1.7	50	99.3	0.1	7.5	3.6		32012

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)
	1.7	1.76		93.6	0.375		2.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MAD	1.701	20	31985	1615	99.197	0.166	0.1639	0.2032	7.666

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]
0.001		0.006	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.771
r_dihedral_angle_4_deg	14.343
r_dihedral_angle_3_deg	11.7
r_dihedral_angle_1_deg	6.222
r_scangle_it	4.139
r_mcangle_it	3.081
r_scbond_it	2.929
r_mcbond_it	2.132
r_angle_other_deg	1.934
r_angle_refined_deg	1.496
r_mcbond_other	0.716
r_symmetry_vdw_other	0.22
r_nbd_refined	0.212
r_nbd_other	0.201
r_symmetry_vdw_refined	0.181
r_nbtor_refined	0.18
r_xyhbond_nbd_refined	0.12
r_symmetry_hbond_refined	0.107
r_chiral_restr	0.099
r_nbtor_other	0.08
r_bond_refined_d	0.016
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2427
Nucleic Acid Atoms
Solvent Atoms	226
Heterogen Atoms	12

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHELX	phasing
SHELX	model building
REFMAC	refinement
PDB_EXTRACT	data extraction
SHELXD	phasing
ARP/wARP	model building
MolProbity	model building