1FMB | pdb_00001fmb

EIAV PROTEASE COMPLEXED WITH THE INHIBITOR HBY-793

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	Other		homology-modeled structure derived from HIV-1 PR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6		pH 4.6

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.93	α = 90
b = 45.71	β = 110.5
c = 56.77	γ = 90

Symmetry
Space Group	C 1 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	273	IMAGE PLATE	MARRESEARCH		1995-04-04	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
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	1.8	20	88.5	0.067		6.1		8443		1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	HIV-1 PROTEASE	1.8	20	3	8140		85	0.136		19.12

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
p_transverse_tor	32.4
p_staggered_tor	19.1
p_scangle_it	5.328
p_scbond_it	3.72
p_planar_tor	3.4
p_mcangle_it	2.567
p_mcbond_it	1.916
p_multtor_nbd	0.45
p_xyhbond_nbd	0.382
p_singtor_nbd	0.207
p_chiral_restr	0.177
p_angle_d	0.046
p_planar_d	0.043
p_plane_restr	0.018
p_bond_d	0.014
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	791
Nucleic Acid Atoms
Solvent Atoms	128
Heterogen Atoms	40

Software

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