4S3P

Amylomaltase MalQ from Escherichia coli, apo structure

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4S3R

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	295	1.2 M Na3Citrate, 250 mM NaCl, 20 mM Tris-HCl, protein concentration 13 mg/ml, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.14	60.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.337	α = 90
b = 106.811	β = 90
c = 217.665	γ = 90

Symmetry
Space Group	P 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	MARMOSAIC 225 mm CCD	mirror	2013-12-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.2	0.91841	BESSY	14.2

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	2.8	35	99.5	0.131	13.52	5.2	49608	49608	-3	-3	38.186

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	2.8	2.9	99.9		0.672	2.82

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	4S3R	2.8	33.84	49608	49608	2410	99.46	0.1819	0.1819	0.1797	0.2241	RANDOM	41.916

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]
0.79			0.43		-1.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.7
r_dihedral_angle_4_deg	17.289
r_dihedral_angle_3_deg	14.526
r_dihedral_angle_1_deg	5.465
r_mcangle_it	1.199
r_angle_refined_deg	1.087
r_angle_other_deg	0.718
r_mcbond_it	0.677
r_mcbond_other	0.677
r_chiral_restr	0.059

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.7
r_dihedral_angle_4_deg	17.289
r_dihedral_angle_3_deg	14.526
r_dihedral_angle_1_deg	5.465
r_mcangle_it	1.199
r_angle_refined_deg	1.087
r_angle_other_deg	0.718
r_mcbond_it	0.677
r_mcbond_other	0.677
r_chiral_restr	0.059
r_bond_refined_d	0.007
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10994
Nucleic Acid Atoms
Solvent Atoms	187
Heterogen Atoms

Software

Software
Software Name	Purpose
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction
PHASER	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.