4BIR | pdb_00004bir

RIBONUCLEASE T1: FREE HIS92GLN MUTANT

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1RGA	PDB ENTRY 1RGA

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.2		pH 4.2

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.82	α = 90
b = 46.53	β = 90
c = 41.2	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	293	DIFFRACTOMETER	ENRAF-NONIUS FAST	COLLIMATOR	1994-05-05	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1		ENRAF-NONIUS

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.7	15	93.9	0.079	6.5	4.6		10404		3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.68	1.73	51.3		0.257	3	2.18

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1RGA	1.7	10	4313	4313		94.5	0.187		RANDOM

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
p_transverse_tor	22.7
p_staggered_tor	13
p_scangle_it	4.724
p_scbond_it	3.809
p_mcangle_it	2.847
p_planar_tor	2.3
p_mcbond_it	2.177
p_chiral_restr	0.175
p_xyhbond_nbd	0.139
p_singtor_nbd	0.138
p_multtor_nbd	0.127
p_planar_d	0.088
p_angle_d	0.076
p_bond_d	0.021
p_plane_restr	0.013
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	785
Nucleic Acid Atoms
Solvent Atoms	147
Heterogen Atoms

Software

Software
Software Name	Purpose
Agrovata	data collection
ROTAVATA	data reduction
FROFFT	model building
PROFFT	refinement
CCP4	data scaling
FROFFT	phasing