2ZUV

Crystal structure of Galacto-N-biose/Lacto-N-biose I phosphorylase in complex with GlcNAc, Ethylene glycol, and nitrate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		Identical protein belonging to different space group

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	277	Na cacodyrate, Mg(NO3)2, PEG 4000, GlcNAc, pH 6.5, VAPOR DIFFUSION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 204.043	α = 90
b = 68.02	β = 108.79
c = 116.047	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	95	CCD	ADSC QUANTUM 210		2007-06-04	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 315		2006-11-29	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE AR-NW12A	1.000	Photon Factory	AR-NW12A
2	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-5A	0.97934, 0.97974, 0.96450	Photon Factory	BL-5A

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	1.85	50	98.5	0.068	21.811	3.8		126352			19.7

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)
	1.85	1.92	97.7		0.25	2.7	3.9	12453

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	Identical protein belonging to different space group	1.85	35.14	126337	6359	98.37	0.151	0.149	0.192	RANDOM	22.142

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]
-0.01			0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.016
r_dihedral_angle_4_deg	18.325
r_dihedral_angle_3_deg	12.587
r_dihedral_angle_1_deg	5.821
r_scangle_it	3.242
r_scbond_it	2.044
r_angle_refined_deg	1.325
r_mcangle_it	1.287
r_mcbond_it	0.724
r_chiral_restr	0.098

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.016
r_dihedral_angle_4_deg	18.325
r_dihedral_angle_3_deg	12.587
r_dihedral_angle_1_deg	5.821
r_scangle_it	3.242
r_scbond_it	2.044
r_angle_refined_deg	1.325
r_mcangle_it	1.287
r_mcbond_it	0.724
r_chiral_restr	0.098
r_bond_refined_d	0.014
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11787
Nucleic Acid Atoms
Solvent Atoms	1826
Heterogen Atoms	94

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	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 R01GM133198.