Experiment: 2QD5

Structure of wild type human ferrochelatase in complex with a lead-porphyrin compound

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291	0.05M ammonium acetate, 0.05M Bis-Tris, pH 6.5 and 40% (v/v) pentaerythritol ethoxylate , VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.67	53.86

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.218	α = 90
b = 92.811	β = 90
c = 109.808	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	103	CCD	ADSC QUANTUM 315		2006-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.0	ALS	8.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.3	50	95	0.064	0.06	24.3	4.4	75630	71861	2	2	29.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.44	76.2		0.28	0.26	2.4	3.1	10429

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.3	47.26	75630	71861	3531	95	0.237	0.237	0.2334	0.28	0.2737	RANDOM	54.5

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]
-14.57			-3.3		17.88

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.1
c_angle_deg	1.7
c_mcangle_it	1.55
c_scangle_it	1.45
c_improper_angle_d	0.97
c_scbond_it	0.89
c_mcbond_it	0.86
c_bond_d	0.016

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5782
Nucleic Acid Atoms
Solvent Atoms	179
Heterogen Atoms	230

Software

Software
Software Name	Purpose
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing