1TW2

Crystal structure of Carminomycin-4-O-methyltransferase (DnrK) in complex with S-adenosyl-L-homocystein (SAH) and 4-methoxy-e-rhodomycin T (M-ET)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	294	PEG4000, sodium acetate, Tris-buffer, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.6	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.682	α = 90
b = 102.582	β = 90
c = 124.256	γ = 90

Symmetry
Space Group	P 21 21 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	MARRESEARCH		2003-11-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.98	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.5	79.06	99.9	0.104	12.4	8.9	27569	27569			31

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.5	2.565	99.9		0.322	4.5

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	RdmB+SAM+DbrA complex	2.5	54	26156	26156	1387	99.93	0.2064	0.2064	0.20296	0.27052	RANDOM	25.953

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			-1.13		2.71

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.744
r_scangle_it	2.25
r_angle_refined_deg	1.531
r_scbond_it	1.311
r_angle_other_deg	1.001
r_mcangle_it	0.939
r_mcbond_it	0.495
r_symmetry_vdw_other	0.3
r_nbd_other	0.231
r_nbd_refined	0.215
r_symmetry_vdw_refined	0.215
r_xyhbond_nbd_refined	0.199
r_symmetry_hbond_refined	0.103
r_chiral_restr	0.092
r_nbtor_other	0.088
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_gen_planes_other	0.004
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5309
Nucleic Acid Atoms
Solvent Atoms	165
Heterogen Atoms	138

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
MOLREP	phasing