1HKC

RECOMBINANT HUMAN HEXOKINASE TYPE I COMPLEXED WITH GLUCOSE AND PHOSPHATE

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HKB	PDB ENTRY 1HKB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		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.

Crystal Properties
Matthews coefficient	Solvent content
4.3	70

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 175.09	α = 90
b = 175.09	β = 90
c = 99.47	γ = 120

Symmetry
Space Group	P 32 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	277	IMAGE PLATE	MARRESEARCH	MIRRORS	1997-02-19	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1		SSRL	BL7-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	2.8	99	98.2	0.085	15.5	4.2		42845			51.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.8	2.9	95.7		0.33	4.9	4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	PDB ENTRY 1HKB	2.8	8	2	40612	4128	97.8	0.174	0.174	0.241	RANDOM	33

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	25.2
x_scangle_it	9.25
x_scbond_it	5.9
x_mcangle_it	5.39
x_mcbond_it	3.49
x_angle_deg	1.1
x_improper_angle_d	0.57
x_bond_d	0.006
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7033
Nucleic Acid Atoms
Solvent Atoms	150
Heterogen Atoms	24

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing