9ZB7 | pdb_00009zb7

A DARPin fused to the 1TEL crystallization chaperone via a direct helical fusion

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	9DAM	DARPin
experimental model	PDB	2QAR	1TEL (we truncate residues past 91)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.2	298	0.4 M Ammonium phosphate monobasic

Crystal Properties
Matthews coefficient	Solvent content
2.16	43.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 83.69	α = 90
b = 83.69	β = 90
c = 58.491	γ = 120

Symmetry
Space Group	P 65

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	Flat Si Rh coated M0, Kirkpatrick-Baez flat bent Si M1 and M2	2025-06-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2	0.97946	SSRL	BL12-2

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	1.24	18.83	99.76	0.08098	0.08748	0.03268	0.997	9.46	6.9		65882			16.66

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	1.24	1.284	99.15		2.081	2.246	0.8372	0.261	1.41	6.9

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	1.24	18.83	1.34	65814	3293	99.77	0.1467	0.1456	0.1454	0.1702	0.1699	25.68

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	12.8055
f_angle_d	1.013
f_chiral_restr	0.0742
f_plane_restr	0.009
f_bond_d	0.0081

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1795
Nucleic Acid Atoms
Solvent Atoms	205
Heterogen Atoms	51

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB-REDO	refinement
XDS	data reduction
autoPROC	data scaling
PHASER	phasing