1XU2

The crystal structure of APRIL bound to BCMA

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	292	well solution: 0.1M MES, 5% Peg 8000, 10% Peg 1000, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.7	55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 114.294	α = 90
b = 114.294	β = 90
c = 91.18	γ = 120

Symmetry
Space Group	P 61

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	SBC-3		2004-06-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.98040	APS	19-BM

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	2.35	50	99.9	0.067	11.7	9.4	28292	28292		-3	52

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	2.35	2.43	100		0.425	3.2	7.6	2831

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	APRIL alone (1U5Z)	2.35	30	-3	28265	25409	2856	99.96	0.1815	0.18151	0.17773	0.21313	THIN SHELLS	29.888

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]
-0.11	-0.05		-0.11		0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	7.064
r_scangle_it	4.711
r_mcangle_it	4.084
r_scbond_it	3.077
r_mcbond_it	2.575
r_angle_refined_deg	1.22
r_angle_other_deg	0.762
r_symmetry_hbond_refined	0.232
r_nbd_other	0.229
r_symmetry_vdw_other	0.201
r_nbd_refined	0.18
r_symmetry_vdw_refined	0.142
r_xyhbond_nbd_refined	0.133
r_nbtor_other	0.083
r_chiral_restr	0.077
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4082
Nucleic Acid Atoms
Solvent Atoms	36
Heterogen Atoms	1

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
AMoRE	phasing