8AMC

Crystal Structure of cat allergen Fel d 4

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	4.5	293.15	0.1 M Sodium acetate trihydrate pH 4.5, 2.0 M Ammonium sulfate

Crystal Properties
Matthews coefficient	Solvent content
2.93	58.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.291	α = 90
b = 120.571	β = 106.513
c = 67.149	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 PILATUS 6M		2021-02-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.873128	ESRF	ID23-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim 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	2.95	34.11	99.61	0.145	0.173	0.094	0.993	9.8	6.5		21622

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.95	3.055			0.828	0.983	0.523	0.722		6.7

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	alphafold	2.95	34.11	21618	1063	99.627	0.181	0.1787	0.2299	62.645

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]
-0.904		0.59	0.147		0.347

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.722
r_dihedral_angle_4_deg	18.978
r_lrange_it	14.184
r_lrange_other	14.173
r_dihedral_angle_3_deg	13.905
r_scangle_it	9.759
r_scangle_other	9.725
r_mcangle_it	8.867
r_mcangle_other	8.859
r_dihedral_angle_1_deg	8.159
r_scbond_it	6.073
r_scbond_other	6.052
r_mcbond_it	5.62
r_mcbond_other	5.612
r_angle_refined_deg	1.74
r_angle_other_deg	1.276
r_symmetry_nbd_refined	0.792
r_symmetry_xyhbond_nbd_refined	0.773
r_xyhbond_nbd_other	0.584
r_nbd_other	0.524
r_nbd_refined	0.207
r_symmetry_nbd_other	0.191
r_ext_dist_refined_d	0.158
r_nbtor_refined	0.158
r_xyhbond_nbd_refined	0.154
r_ncsr_local_group_3	0.148
r_ncsr_local_group_5	0.139
r_ncsr_local_group_4	0.136
r_ncsr_local_group_2	0.134
r_ncsr_local_group_1	0.13
r_ncsr_local_group_6	0.128
r_chiral_restr	0.092
r_symmetry_nbtor_other	0.078
r_bond_refined_d	0.011
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5138
Nucleic Acid Atoms
Solvent Atoms	99
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
REFMAC	refinement
PHASER	phasing
Aimless	data scaling
XDS	data reduction