Experiment: 9ETL

Mouse CNPase catalytic domain with nanobody 8D

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2XMI
in silico model	AlphaFold		AlphaFold2 model of nanobody 8D

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		277	0.1 M phosphate-citrate pH 4.2, 18% PEG8000, 0.35M NaCl

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.93

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.3	α = 95.657
b = 46.541	β = 100.112
c = 91.976	γ = 90.077

Symmetry
Space Group	P 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 EIGER X 16M		2022-02-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, DESY BEAMLINE P11	1.033	PETRA III, DESY	P11

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	1.5	50	89.7	0.091	0.997	6.9	2.7		190179			25.15

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	1.5	1.59	89.4		2.368	0.224	0.5

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	1.5	45.05	1.96	179148	3731	81.35	0.1796	0.1785	0.1786	0.2293	0.2295	36.35

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	12.9702
f_angle_d	1.0064
f_chiral_restr	0.0811
f_bond_d	0.0106
f_plane_restr	0.0092

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5077
Nucleic Acid Atoms
Solvent Atoms	347
Heterogen Atoms

Software

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