2FNK

Activation of Human Carbonic Anhydrase II by exogenous proton donors

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	ROTATING ANODE
Source details	RIGAKU RU300
Temperature [K]	293
Detector technology	IMAGE PLATE
Collection date	2005-06-10
Detector	RIGAKU RAXIS IV
Wavelength(s)	1.5418
Spacegroup name	P 1 21 1
Unit cell lengths	42.092, 41.402, 71.928
Unit cell angles	90.00, 104.00, 90.00

Refinement procedure

Resolution	20.000 - 1.800
Rwork	0.204
R-free	0.24200
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1tbt
RMSD bond length	0.005
RMSD bond angle	1.300
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	CNS

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	20.000	1.860
High resolution limit [Å]	1.800	1.800
Number of reflections	20747
Completeness [%]	92.1	92.2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	8.2	293	50 mM Tris-Cl. pH 8.2 2.6 M ammonium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 293K