2I48

Crystal structure of Bicarbonate Transport Protein CmpA from Synechocystis sp. PCC 6803 in complex with carbonic acid

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	batch/microseeding	5	298	Ammonium sulfate, succinate, sodium carbonate, pH 5.0, batch/microseeding, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.54	α = 87.33
b = 49.64	β = 80.5
c = 57.78	γ = 75.31

Symmetry
Space Group	P 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	SBC-3	mirrors	2005-11-03	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.97899, 0.97915, 0.97132	APS	19-BM

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	1.6	40	92.4	0.077	22.9	2.6	56952	56952

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)
1	1.6	1.66	89.4		0.7	14.1	2.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	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	MAD	1.6	37.02	56952	56952	5797	91.4	0.175	0.175	0.175	0.191	random	13.158

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]
-4.006	0.955	2.129	3.541	-0.645	0.465

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	2.187
c_scbond_it	1.634
c_angle_deg	1.309
c_mcangle_it	1.228
c_mcbond_it	0.88
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3123
Nucleic Acid Atoms
Solvent Atoms	393
Heterogen Atoms	4

Software

Software
Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.