Experiment: 7ZXK

Human IL-27 in complex with neutralizing SRF388 FAb fragment

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6AZM	6AZM,5IJK,5FUC
experimental model	PDB	5IJK	6AZM,5IJK,5FUC
experimental model	PDB	5FUC	6AZM,5IJK,5FUC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	20% PEG 3350, 0.2 M ammonium citrate dibasic, 2.5 % glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.84	56.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.806	α = 90
b = 104.622	β = 98.65
c = 121.754	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	100	PIXEL	DECTRIS EIGER2 XE 16M		2019-11-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.9795	Diamond	I04

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rrim I (All)	CC (Half)	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	120.4	99.8	0.06	0.999	14.82	5.23		108947			45.98

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.26	99.6		2.081	0.711	0.92	5.34

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6AZM,5IJK,5FUC	2.2	60.18	1.36	87303	4363	79.96	0.1862	0.1844	0.1935	0.2205	0.221	62.16

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
f_dihedral_angle_d	11.9355
f_angle_d	0.5872
f_chiral_restr	0.0424
f_plane_restr	0.0046
f_bond_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	12255
Nucleic Acid Atoms
Solvent Atoms	566
Heterogen Atoms	28

Software

Software
Software Name	Purpose
BUSTER	refinement
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing