2AZD

X-Ray studies on Maltodextrin Phosphorylase (MalP) Complexes: recognition of substrates and CATALYTIC mechanism of phosphorylase family

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	298	PEG4000, lithium chloride, TRIS (HYDROXYMETHIL)AMINOMETHANE, MALTOPENTAOSE, SODIUM ORTHOVANADATE, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.5	49.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.779	α = 90
b = 105.892	β = 90
c = 220.23	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	CCD	MARRESEARCH			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	2.16	111.8		0.132	12.6	6.5	96210	88911			34.35

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	2.16	2.28			0.709	2.2	5.8	12410

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.16	6.83	84393	4458	91.54	0.207	0.20468	0.24967	RANDOM	35.91

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]
0.09			-0.02		-0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.979
r_scangle_it	4.163
r_scbond_it	2.598
r_angle_refined_deg	1.887
r_mcangle_it	1.787
r_angle_other_deg	1.187
r_mcbond_it	1.003
r_symmetry_vdw_other	0.297
r_nbd_other	0.255
r_nbd_refined	0.225
r_symmetry_hbond_refined	0.222
r_symmetry_vdw_refined	0.213
r_xyhbond_nbd_refined	0.194
r_chiral_restr	0.116
r_nbtor_other	0.094
r_bond_refined_d	0.025
r_gen_planes_refined	0.01
r_gen_planes_other	0.006
r_bond_other_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	12778
Nucleic Acid Atoms
Solvent Atoms	632
Heterogen Atoms	146

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
AMoRE	phasing