7O54

Crystal structure of the carbonic anhydrase-like domain of CcmM in complex with the C-terminal 17 residues of CcaA from Synechococcus elongatus (strain PCC 7942)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	25% PEG-3350 and 0.1 M HEPES pH 7.5

Crystal Properties
Matthews coefficient	Solvent content
2.32	47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.365	α = 90
b = 89.365	β = 90
c = 129.835	γ = 120

Symmetry
Space Group	H 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS EIGER X 16M		2020-11-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	0.99989	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	1.63	37.08	98.8	0.03	0.031	1	45.4	18.4		24740

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.632	1.661			0.684	0.725	0.865

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	7O4Z	1.63	37.08	23554	1186	98.81	0.1785	0.1773	0.1997	RANDOM	34.751

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]
-0.03	-0.02		-0.03		0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.375
r_dihedral_angle_3_deg	13.947
r_dihedral_angle_4_deg	13.585
r_dihedral_angle_1_deg	6.627
r_angle_refined_deg	2.099
r_angle_other_deg	1.495
r_chiral_restr	0.093
r_bond_refined_d	0.017
r_gen_planes_refined	0.015
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.375
r_dihedral_angle_3_deg	13.947
r_dihedral_angle_4_deg	13.585
r_dihedral_angle_1_deg	6.627
r_angle_refined_deg	2.099
r_angle_other_deg	1.495
r_chiral_restr	0.093
r_bond_refined_d	0.017
r_gen_planes_refined	0.015
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1376
Nucleic Acid Atoms
Solvent Atoms	103
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
MOLREP	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.