2QQJ

Crystal Structure of the b1b2 Domains from Human Neuropilin-2

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2QQI	PDB entry 2QQI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	297	0.1 M Bis-Tris, 20% PEG 5000 MME, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
2.14	42.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.456	α = 90
b = 70.501	β = 90
c = 121.929	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 210		2005-11-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1	1.00	ALS	5.0.1

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	1.95	50	99.8	0.089	16.8	5.3		23691			32.6

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	1.95	2.02	99.9		0.53	3.1	5.2	2349

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 2QQI	1.95	20	22404	1216	99.86	0.176	0.172	0.235	RANDOM	22.462

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]
2.74			-1.22		-1.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.482
r_dihedral_angle_4_deg	16.608
r_dihedral_angle_3_deg	12.992
r_dihedral_angle_1_deg	7.326
r_scangle_it	4.494
r_mcangle_it	4.033
r_mcbond_it	3.43
r_scbond_it	3.358
r_angle_refined_deg	1.454
r_angle_other_deg	0.935
r_mcbond_other	0.72
r_symmetry_vdw_other	0.234
r_nbd_other	0.201
r_symmetry_hbond_refined	0.191
r_nbd_refined	0.181
r_nbtor_refined	0.174
r_symmetry_vdw_refined	0.148
r_xyhbond_nbd_refined	0.121
r_chiral_restr	0.091
r_nbtor_other	0.084
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2503
Nucleic Acid Atoms
Solvent Atoms	239
Heterogen Atoms	6

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction