4RKD | pdb_00004rkd

Psychrophilic aromatic amino acids aminotransferase from Psychrobacter sp. B6 cocrystalized with aspartic acid

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4RKC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	293	0.2M (CH3COO)2Mg, 20% PEG3350, 0.1M Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.25	α = 90
b = 103.23	β = 98.58
c = 165.78	γ = 90

Symmetry
Space Group	P 1 21 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	MARMOSAIC 225 mm CCD	mirrors	2012-07-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.9184	BESSY	14.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.76	50	97.4	0.126	7.66	2.27		77222		-3

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	2.76	2.86	98.6		0.517	0.523	2.29	2.26	7979

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 (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4RKC	2.76	45.74	73358	3862	97.38	0.17578	0.17578	0.17338	0.17	0.22194	0.22	RANDOM	39.782

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]
-1.93		0.24	4.88		-2.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.993
r_dihedral_angle_4_deg	21.46
r_dihedral_angle_3_deg	19.407
r_long_range_B_refined	8.318
r_dihedral_angle_1_deg	7.092
r_mcangle_it	4.429
r_scbond_it	3.355
r_mcbond_it	2.76
r_angle_refined_deg	2.043
r_chiral_restr	0.122

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.993
r_dihedral_angle_4_deg	21.46
r_dihedral_angle_3_deg	19.407
r_long_range_B_refined	8.318
r_dihedral_angle_1_deg	7.092
r_mcangle_it	4.429
r_scbond_it	3.355
r_mcbond_it	2.76
r_angle_refined_deg	2.043
r_chiral_restr	0.122
r_bond_refined_d	0.017
r_gen_planes_refined	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	24808
Nucleic Acid Atoms
Solvent Atoms	818
Heterogen Atoms	201

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.