3PC4

Full length structure of cystathionine beta-synthase from Drosophila in complex with serine

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3PC2	PDB entry 3PC2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	298	23% PEG 3350, 0.2 Li2SO4, 100 mM BIS-TRIS 6.5, vapor diffusion, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.947	α = 90
b = 137.935	β = 90
c = 75.129	γ = 90

Symmetry
Space Group	C 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 300 mm CCD	K-B pair of biomorph mirrors for vertical and horizontal focusing	2009-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	0.9798	APS	23-ID-D

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	1.7	50	98.9	0.063	11.9	5.4	53048	52465

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	1.7	1.76	98.1		0.482		5.3	5114

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 3PC2	1.7	41.21	53081	52462	2669	98.86	0.18	0.1788	0.2033	RANDOM	23.1731

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]
0.82			-0.24		-0.57

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.56
r_dihedral_angle_4_deg	18.483
r_dihedral_angle_3_deg	13.35
r_dihedral_angle_1_deg	5.879
r_scangle_it	3.279
r_scbond_it	1.969
r_mcangle_it	1.306
r_angle_refined_deg	1.277
r_mcbond_it	0.713
r_chiral_restr	0.085

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.56
r_dihedral_angle_4_deg	18.483
r_dihedral_angle_3_deg	13.35
r_dihedral_angle_1_deg	5.879
r_scangle_it	3.279
r_scbond_it	1.969
r_mcangle_it	1.306
r_angle_refined_deg	1.277
r_mcbond_it	0.713
r_chiral_restr	0.085
r_bond_refined_d	0.011
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3865
Nucleic Acid Atoms
Solvent Atoms	598
Heterogen Atoms	66

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
HKL-2000	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.