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Crystal structure of a C49 Phospholipase A2 from Indian cobra reveals carbohydrate binding in the hydrophobic channel

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	EMBL/DESY, HAMBURG BEAMLINE X11
Synchrotron site	EMBL/DESY, HAMBURG
Beamline	X11
Temperature [K]	278
Detector technology	IMAGE PLATE
Collection date	2002-04-14
Detector	MARRESEARCH
Wavelength(s)	0.91
Spacegroup name	P 41 21 2
Unit cell lengths	77.656, 77.656, 68.424
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	15.000 - 2.300
R-factor	0.225
Rwork	0.225
R-free	0.25600
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1LFJ
RMSD bond length	0.008
RMSD bond angle	1.300
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	AMoRE
Refinement software	CNS (0.9)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	15.000	2.340
High resolution limit [Å]	2.300	2.300
Number of reflections	9636
<I/σ(I)>	17.9	2.7
Completeness [%]	98.9	86.9
Redundancy	10.4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	6	293	10mM Sodium Cacodylate, 2mM Zinc acetate, 25% Ethanol, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K