9QAP | pdb_00009qap

Human angiotensin-1 converting enzyme C-domain in complex with quinaprilat

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7Z70

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	289.15	0.1 M MIB pH 4.0, 5% glycerol, 15% PEG 3350.

Crystal Properties
Matthews coefficient	Solvent content
2.63	53.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.72	α = 90
b = 85.652	β = 90
c = 135.73	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	100	PIXEL	DECTRIS EIGER2 S 16M		2024-09-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.953701	Diamond	I04

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	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	1.5	135.73	100	0.138	0.039	0.998	9.5	13.2		112080

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.5	1.53			2.137	0.605	0.519

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	1.5	72.54	111980	5625	99.995	0.146	0.1436	0.1556	0.1961	0.2014	25.587

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]
0.579			-1.196		0.616

RMS Deviations
Key	Refinement Restraint Deviation
r_lrange_it	20.016
r_lrange_other	18.78
r_scangle_it	16.135
r_scangle_other	16.133
r_dihedral_angle_6_deg	15.939
r_dihedral_angle_3_deg	13.602
r_scbond_it	11.929
r_scbond_other	11.927
r_mcangle_other	10.052
r_mcangle_it	10.048
r_dihedral_angle_2_deg	9.937
r_mcbond_it	7.68
r_mcbond_other	7.678
r_dihedral_angle_1_deg	6.018
r_rigid_bond_restr	5.377
r_angle_refined_deg	2.066
r_angle_other_deg	0.759
r_nbd_refined	0.248
r_chiral_restr	0.243
r_nbtor_refined	0.193
r_symmetry_nbd_other	0.191
r_nbd_other	0.187
r_symmetry_xyhbond_nbd_refined	0.174
r_xyhbond_nbd_refined	0.166
r_symmetry_nbd_refined	0.149
r_symmetry_nbtor_other	0.08
r_bond_refined_d	0.014
r_gen_planes_refined	0.011
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4648
Nucleic Acid Atoms
Solvent Atoms	608
Heterogen Atoms	158

Software

Software
Software Name	Purpose
REFMAC	refinement
DIALS	data reduction
Aimless	data scaling
PHASER	phasing