Experiment: 27IQ

Crystal structure of the mature form of human ASPRV1 bound to filaggrin peptide

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	AlphaFold

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		289	0.1 M calcium chloride dihydrate, 0.1 M sodium acetate trihydrate, pH 4.6, and 30% (w/v) PEG 4000

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.004	α = 90
b = 64.929	β = 90
c = 76.221	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	193	PIXEL	DECTRIS EIGER2 S 16M		2026-01-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL02U1	0.97918	SSRF	BL02U1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	2.09	38.6	97.7	0.999	11.6	9.8		28780			38.94

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.09	2.13			0.89

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.09	22.74	1.34	28607	2868	99.02	0.2646	0.2616	0.2616	0.2922	0.2932	42.84

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	16.8027
f_angle_d	1.0694
f_chiral_restr	0.0645
f_plane_restr	0.0238
f_bond_d	0.0085

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2055
Nucleic Acid Atoms
Solvent Atoms	53
Heterogen Atoms	2

Software

Software
Software Name	Purpose
PHENIX	refinement