6XHE

Structure of beta-prolinyl 5'-O-adenosine phosphoramidate

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1AFK	Single RNase molecule from PDB-ID

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	291	PROTEIN WAS CRYSTALLIZED FROM 25% PEG 3350, 20 MM SODIUM CITRATE, PH 5.5, Glycinyl-5'-O-adenosine phosphoramidate soaking was achieved as follows. 1 uL of a stock solution of 50 mM ligand was added to 2uL of reservoir solution, to achieve a concentration of ~25 mM in the soaking solution. A few RNase A crystals were soaked for 45 - 90 minutes in the soaking solution

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.002	α = 90
b = 32.795	β = 90.33
c = 74.09	γ = 90

Symmetry
Space Group	C 1 2 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	CCD	RAYONIX MX-300	C(111)	2019-07-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.97872	APS	21-ID-G

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	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	1.88	29.81	98.2	0.094	0.094	24.93	7.1		19587

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.88	1.97	89.5		0.951	0.951		6.2

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	Single RNase molecule from PDB-ID	1.88	29.81	18618	968	96.97	0.20769	0.20482	0.26463	RANDOM	43.318

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]
-1.83		-1.67	-2.12		3.96

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.043
r_dihedral_angle_3_deg	15.044
r_long_range_B_refined	8.58
r_long_range_B_other	8.564
r_dihedral_angle_4_deg	7.406
r_dihedral_angle_1_deg	7.101
r_scangle_other	5.345
r_mcangle_it	4.937
r_mcangle_other	4.937
r_scbond_it	3.606
r_scbond_other	3.605
r_mcbond_it	3.237
r_mcbond_other	3.228
r_angle_refined_deg	1.578
r_angle_other_deg	1.319
r_chiral_restr	0.061
r_bond_refined_d	0.007
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1902
Nucleic Acid Atoms
Solvent Atoms	98
Heterogen Atoms	53

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing