1S8D

Structural basis for degenerate recognition of HIV peptide variants by cytotoxic lymphocyte, variant SL9-3A

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	NSLS BEAMLINE X4A
Synchrotron site	NSLS
Beamline	X4A
Temperature [K]	100
Detector technology	CCD
Collection date	2001-10-05
Detector	ADSC QUANTUM 4
Spacegroup name	P 1 21 1
Unit cell lengths	55.920, 80.300, 57.800
Unit cell angles	90.00, 116.29, 90.00

Refinement procedure

Resolution	11.940 - 2.200
R-factor	0.19
Rwork	0.190
R-free	0.25200
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	2hla
RMSD bond length	0.008
RMSD bond angle	1.300
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	CNS (1.1)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	20.000
High resolution limit [Å]	2.200	2.200
Rmerge	0.058	0.096
Number of reflections	20625
<I/σ(I)>	4039.3	1882
Completeness [%]		85.5

Crystallization Conditions

crystal ID	method	pH	temperature	details
1		6.5	293	15% polyethylene glycol 6000, 25mM MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 6.50