2VLW

Crystal structure of the muscarinic toxin MT7 diiodoTYR51 derivative.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1FF4	PDB ENTRY 1FF4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		1.25M AMMONIUM SULFATE, 90MM SODIUM CITRATE, 10% 4-METHYL PENTANEDIOL, PH 5.5

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 26.766	α = 90
b = 56.577	β = 95.17
c = 45.308	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	MIRRORS	2005-06-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29		ESRF	ID29

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	1.39	45.13	95.3	0.07	5	2.2		24835

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	1.38	1.42	75.3		0.48	2.5	1.5

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	PDB ENTRY 1FF4	1.39	45.13	24835	1309	95.3	0.2	0.199	0.212	RANDOM	13.26

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]
0.13		0.17	-0.7		0.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.85
r_dihedral_angle_3_deg	13.341
r_dihedral_angle_4_deg	10.844
r_dihedral_angle_1_deg	7.076
r_scangle_it	3.971
r_scbond_it	2.919
r_mcangle_it	1.822
r_angle_refined_deg	1.62
r_mcbond_it	1.038
r_angle_other_deg	0.994
r_symmetry_vdw_refined	0.414
r_symmetry_hbond_refined	0.397
r_symmetry_vdw_other	0.335
r_chiral_restr	0.285
r_xyhbond_nbd_refined	0.241
r_nbd_refined	0.218
r_nbd_other	0.198
r_nbtor_refined	0.19
r_nbtor_other	0.093
r_bond_refined_d	0.013
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.002
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	1042
Nucleic Acid Atoms
Solvent Atoms	173
Heterogen Atoms	14

Software

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