2IQA | pdb_00002iqa

PFA2 FAB fragment, monoclinic apo form

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2IQ9	PDB ENTRY 2IQ9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5		0.1 M Bis-Tris, 28% PEG-MME 2000, pH 6.5, VAPOR DIFFUSION

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.984	α = 90
b = 73.412	β = 99.97
c = 93.508	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		CCD	ADSC QUANTUM 315		2005-12-11	M	SINGLE WAVELENGTH
2	1	x-ray		M	SINGLE WAVELENGTH
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.90020	APS	14-BM-C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2	33.45	99.7	0.09	22.3	5.6		70368			31.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1,2	2	2.07	99.4		0.405	3.26	3.3	6934

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2IQ9	2	33.45	70337	3567	99.54	0.232	0.23	0.2277	0.279	0.2741	RANDOM	35.142

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]
-0.21		-2.18	1.28		-1.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.227
r_dihedral_angle_4_deg	19.934
r_dihedral_angle_3_deg	16.74
r_dihedral_angle_1_deg	7.131
r_scangle_it	2.54
r_scbond_it	1.7
r_angle_refined_deg	1.406
r_mcangle_it	1.371
r_mcbond_it	0.816
r_nbtor_refined	0.302
r_symmetry_vdw_refined	0.225
r_nbd_refined	0.204
r_symmetry_hbond_refined	0.154
r_xyhbond_nbd_refined	0.136
r_chiral_restr	0.095
r_bond_refined_d	0.011
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6696
Nucleic Acid Atoms
Solvent Atoms	272
Heterogen Atoms	57

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
BIO-CARS	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing