1GXN

Family 10 polysaccharide lyase from Cellvibrio cellulosa

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.2		CRYSTALS OF PEL10ACM WERE GROWN BY VAPOUR-PHASEDIFFUSION USING THE HANGING-DROP METHOD WITH SCREENING AS DESCRIBED BY BRZOZOWSKI & WALTON (2001 [[BRZOZOWSKI, A.M. & WALTON, J.(2001). J. APPL. CRYST. 34, 97-101.]] ). THE PROTEIN CONCENTRATION WAS 30 MG ML-1 IN NA MES BUFFER PH 5.2 CONTAINING KSCN AT A CONCENTRATION OF 200 MM. THE PRECIPITANT WAS 20%(W/V) MONOMETHYL POLYETHYLENEGLYCOL 2000. THESE CONDITIONS FOR THE NATIVE P21 CRYSTALS WERE MODIFIED BY ADDING 25MM CACL2, WHICH RESULTED IN CRYSTALS BELONGING TO SPACE GROUP P21212

Crystal Properties
Matthews coefficient	Solvent content
1.8	33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.258	α = 90
b = 55.137	β = 90
c = 47.574	γ = 90

Symmetry
Space Group	P 21 21 2

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 CCD		2001-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6		SRS	PX9.6

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	1.5	50	99.1	0.062	21.5	4.2		45240

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	1.5	1.53	98.6		0.311	4.5	4.1

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	OTHER	THROUGHOUT	1.5	53.45	42920	2286	99.2	0.131	0.129	0.157	RANDOM	9.54

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]
			-0.2		0.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.491
r_dihedral_angle_3_deg	13.67
r_dihedral_angle_4_deg	11.792
r_dihedral_angle_1_deg	5.414
r_scangle_it	2.727
r_angle_other_deg	1.926
r_scbond_it	1.796
r_angle_refined_deg	1.226
r_mcangle_it	1.208
r_mcbond_it	0.72
r_symmetry_vdw_refined	0.447
r_nbd_other	0.278
r_symmetry_hbond_refined	0.252
r_symmetry_vdw_other	0.24
r_nbd_refined	0.221
r_xyhbond_nbd_refined	0.158
r_nbtor_other	0.149
r_chiral_restr	0.074
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_bond_other_d	0.003
r_gen_planes_other	0.001
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2527
Nucleic Acid Atoms
Solvent Atoms	422
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling