1XA1

Crystal structure of the sensor domain of BlaR1 from Staphylococcus aureus in its apo form

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1XA7	benzylpenicillin-acylated BlaR1 C-terminal domain, PDB entry 1XA7

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.7	291	18-23% PEG 3350, 0.2M NaH2PO4, pH 4.7, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.876	α = 90
b = 104.893	β = 107.79
c = 90.273	γ = 90

Symmetry
Space Group	P 1 21 1

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 QUANTUM 4		2003-06-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	1.10000	NSLS	X8C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	50	97.3			95274	95274

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.86	78

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	MOLECULAR REPLACEMENT	THROUGHOUT	benzylpenicillin-acylated BlaR1 C-terminal domain, PDB entry 1XA7	1.8	50	95247	90477	4770	97.09	0.18824	0.18824	0.18618	0.2271	RANDOM	18.616

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]
0.11		0.1	-0.3		0.26

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.9
r_scangle_it	3.335
r_scbond_it	2.044
r_mcangle_it	1.393
r_angle_refined_deg	1.296
r_angle_other_deg	0.767
r_mcbond_it	0.753
r_symmetry_vdw_other	0.28
r_symmetry_vdw_refined	0.258
r_nbd_other	0.24
r_nbd_refined	0.212
r_symmetry_hbond_refined	0.206
r_xyhbond_nbd_refined	0.18
r_nbtor_other	0.083
r_chiral_restr	0.079
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_gen_planes_other	0.006
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8135
Nucleic Acid Atoms
Solvent Atoms	1031
Heterogen Atoms	51

Software

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