9AWA | pdb_00009awa

Crystal structure of trypsin at 150 Kelvin with benzamidine (triplicate)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1S0R

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9.4	298	0.2 M Potassium phosphate dibasic, 20% w/v Polyethylene glycol 3,350.

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.651	α = 90
b = 57.142	β = 90
c = 64.79	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	150	CMOS	BRUKER PHOTON 100		2023-11-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER TURBO X-RAY SOURCE	1.54184

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	1.497	24.961	99.3	0.718	17.53	10		32520

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.5	24.95			0.718

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1.497	24.961	32520	1664	99.292	0.204	0.2018	0.2117	0.2377	0.2452	12.644

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]
0.243			-0.718		0.475

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	13.767
r_dihedral_angle_6_deg	13.225
r_dihedral_angle_3_deg	12.01
r_dihedral_angle_1_deg	7.293
r_lrange_it	4.482
r_lrange_other	4.049
r_scangle_it	3.137
r_scangle_other	3.137
r_scbond_it	2.11
r_scbond_other	2.108
r_mcangle_it	1.954
r_mcangle_other	1.954
r_angle_refined_deg	1.792
r_mcbond_it	1.36
r_mcbond_other	1.358
r_dihedral_angle_other_2_deg	1.114
r_angle_other_deg	0.645
r_xyhbond_nbd_refined	0.295
r_nbd_refined	0.216
r_symmetry_nbd_other	0.203
r_nbd_other	0.178
r_nbtor_refined	0.175
r_metal_ion_refined	0.147
r_symmetry_nbd_refined	0.145
r_symmetry_xyhbond_nbd_refined	0.133
r_chiral_restr	0.092
r_symmetry_nbtor_other	0.087
r_bond_refined_d	0.01
r_gen_planes_refined	0.01
r_symmetry_metal_ion_refined	0.007
r_symmetry_xyhbond_nbd_other	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1629
Nucleic Acid Atoms
Solvent Atoms	272
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
SAINT	data reduction
SCALA	data scaling
MOLREP	phasing