9AWD | pdb_00009awd

Crystal structure of trypsin at 175 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
2.25	45.24

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.325	α = 90
b = 58.226	β = 90
c = 66.254	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	175	CMOS	BRUKER PHOTON 100		2023-11-04	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	1.49	23.085	94.17	0.652	10.91	10		33103

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	23.07			0.6521

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	1.491	23.085	33103	1628	94.688	0.237	0.235	0.242	0.2673	0.2726	9.37

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]
-0.127			0.023		0.104

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	17.009
r_dihedral_angle_6_deg	13.1
r_dihedral_angle_3_deg	10.978
r_dihedral_angle_1_deg	7.262
r_lrange_it	4.955
r_lrange_other	4.081
r_scangle_it	2.44
r_scangle_other	2.44
r_mcangle_it	1.761
r_mcangle_other	1.76
r_angle_refined_deg	1.715
r_scbond_it	1.583
r_scbond_other	1.582
r_mcbond_it	1.105
r_mcbond_other	1.104
r_dihedral_angle_other_2_deg	1.089
r_angle_other_deg	0.584
r_xyhbond_nbd_refined	0.282
r_nbd_refined	0.21
r_symmetry_nbd_other	0.203
r_nbd_other	0.201
r_symmetry_xyhbond_nbd_refined	0.2
r_symmetry_nbd_refined	0.195
r_nbtor_refined	0.176
r_metal_ion_refined	0.152
r_symmetry_nbtor_other	0.086
r_chiral_restr	0.079
r_symmetry_xyhbond_nbd_other	0.017
r_gen_planes_refined	0.01
r_bond_refined_d	0.009
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	295
Heterogen Atoms	10

Software

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