Experiment: 3R1W

Crystal structure of a carbonic anhydrase from a crude oil degrading psychrophilic library

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1V67	PDB entry 1V67

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.6	298	0.1M tri-NaCitrate, 0.2M NaCl, 25%PEG3350. 1/70 Trypsin, pH 5.6, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.071	α = 90
b = 89.943	β = 96.37
c = 54.72	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	IMAGE PLATE	RIGAKU RAXIS VII	MSC/Yale double focusing mirrors	2006-04-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.54

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	1.73	36.96	93.5	0.047	0.044	33.2	7.6		50561		2

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)
	1.73	1.83	83.2		0.203	0.189	10	7.4	6497

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	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	PDB entry 1V67	1.73	34.657	50098	2539	92.72	0.159	0.1574	0.1526	0.1894	0.184	RANDOM

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]
-1.8549		-0.2731	1.4808		0.3741

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.577
f_angle_d	1.106
f_chiral_restr	0.075
f_bond_d	0.007
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4071
Nucleic Acid Atoms
Solvent Atoms	462
Heterogen Atoms

Software

Software
Software Name	Purpose
CrystalClear	data collection
MOLREP	phasing
PHENIX	refinement
XDS	data reduction
SCALA	data scaling