2VSQ

Structure of surfactin A synthetase C (SrfA-C), a nonribosomal peptide synthetase termination module

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		0.1 M MGCL2, 0.05 M HEPES (PH 7.5), 15 % (W/V) PEG 2000

Crystal Properties
Matthews coefficient	Solvent content
2.87	56.76

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 83.106	α = 90
b = 106.562	β = 97.35
c = 92.401	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 CCD		2007-07-14	M	MAD
2	1	x-ray						M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2
2	SYNCHROTRON	SLS BEAMLINE X06SA	0.9794, 0.9792, 0.9717	SLS	X06SA

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	2.6	82.5	93	0.04	12.9	2.2		45564		-3	79.2

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	2.6	2.67	68		0.48	2

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	MAD	THROUGHOUT	PDB ENTRIES 1AMU AND 2JGP	2.6	82.5	44479	1040	93.1	0.215	0.213	0.272	RANDOM	59.23

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]
-1.59		-0.03	-0.53		2.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.327
r_dihedral_angle_3_deg	19.167
r_dihedral_angle_4_deg	18.264
r_dihedral_angle_1_deg	7.014
r_scangle_it	1.408
r_angle_refined_deg	1.272
r_scbond_it	0.929
r_angle_other_deg	0.878
r_mcangle_it	0.765
r_mcbond_it	0.463
r_nbd_refined	0.228
r_symmetry_vdw_other	0.202
r_nbd_other	0.188
r_nbtor_refined	0.186
r_symmetry_vdw_refined	0.162
r_xyhbond_nbd_refined	0.151
r_symmetry_hbond_refined	0.134
r_nbtor_other	0.089
r_chiral_restr	0.071
r_bond_refined_d	0.011
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001
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	10056
Nucleic Acid Atoms
Solvent Atoms	39
Heterogen Atoms	14

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing