1HKC

RECOMBINANT HUMAN HEXOKINASE TYPE I COMPLEXED WITH GLUCOSE AND PHOSPHATE

Experimental procedure

Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL7-1
Synchrotron site	SSRL
Beamline	BL7-1
Temperature [K]	277
Detector technology	IMAGE PLATE
Collection date	1997-02
Detector	MARRESEARCH
Spacegroup name	P 32 2 1
Unit cell lengths	175.090, 175.090, 99.470
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	8.000 - 2.800
R-factor	0.174
Rwork	0.174
R-free	0.24100
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1hkb
RMSD bond length	0.006
RMSD bond angle	25.200 *
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	X-PLOR (3.851)
Refinement software	X-PLOR (3.851)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	99.000	2.900
High resolution limit [Å]	2.800	2.800
Rmerge	0.085	0.330
Total number of observations	251876 *
Number of reflections	42845
<I/σ(I)>	15.5	4.9
Completeness [%]	98.2	95 *
Redundancy	4.2	4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	7 *		HEXOKINASE WAS CRYSTALLIZED BY HANGING DROP METHOD AT ROOM TEMPERATURE BY MIXING 20 MG/ ML OF PROTEIN IN 25 MM POTASSIUM PHOSPHATE WITH A PRECIPITANT SOLUTION CONTAINING 5% PEG 8000 AND 0.1 M NA CACODYLATE, PH 6.5. PROTEIN SAMPLES CONTAINED A TRACE AMOUNT OF GLUCOSE LEFT AFTER PURIFICATION.

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	20 (mg/ml)
2	1	reservoir	PEG8000	5-7 (%(w/v))
3	1	reservoir	sodium cacodylate	0.1 (M)