1L6I

Crystal Structure of the Maltodextrin Phosphorylase complexed with the products of the enzymatic reaction between glucose-1-phosphate and maltopentaose

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1L5V

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	PEG 4000, T	8.5	291	PEG 4000, TRIS, Lithium Chloride, Glucose-1-phosphate, pH 8.5, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.41	49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.331	α = 90
b = 105.937	β = 90
c = 218.895	γ = 90

Symmetry
Space Group	P 21 21 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	IMAGE PLATE	MARRESEARCH		2001-02-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R	1.2	ELETTRA	5.2R

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	2.2	19	91.4	0.19	8.4	5.1	81626	81626			34.034

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	2.2	2.3	87.4		0.36	2.5	4.5	11231

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	FOURIER SYNTHESIS	THROUGHOUT	1L5V	2.2	20	81515	81515	4167	91.4	0.19971	0.19971	0.19736	0.24312	RANDOM	35.156

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]
-3.96			-1.09		5.05

RMS Deviations
Key	Refinement Restraint Deviation
p_scangle_it	4.729
p_scbond_it	3.125
p_angle_deg	2.224
p_mcangle_it	1.833
p_mcbond_it	1.058
p_chiral_restr	0.156
p_bond_d	0.025
p_plane_restr	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	12780
Nucleic Acid Atoms
Solvent Atoms	1203
Heterogen Atoms	152

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
DM	model building
REFMAC	refinement
CCP4	data scaling
DM	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.