3CIA

Crystal structure of cold-aminopeptidase from Colwellia psychrerythraea

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HS6

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291	23 % w/v PEG 3350, 0.5 M NaCl, 0.1 M Bis-Tris, pH 6.50, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.83	56.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.37	α = 88.83
b = 87.1	β = 70.68
c = 116.36	γ = 88.43

Symmetry
Space Group	P 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				M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.9799	ESRF	BM30A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.7	46.7	93.5	0.2	0.09	8.57	2.29	80533	74827	2	1	37.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.7	2.8	67.1

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-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1HS6	2.7	46.68	80533	76497	4034	97.29	0.25047	0.24943	0.27011	RANDOM	32.193

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]
0.12	-0.08	0.05	-0.29	0.15	0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.032
r_dihedral_angle_4_deg	18.715
r_dihedral_angle_3_deg	18.562
r_dihedral_angle_1_deg	6.553
r_scangle_it	2.385
r_angle_refined_deg	2.228
r_mcangle_it	2.097
r_scbond_it	1.544
r_mcbond_it	1.172
r_symmetry_hbond_refined	0.4
r_symmetry_vdw_refined	0.359
r_nbtor_refined	0.346
r_nbd_refined	0.314
r_xyhbond_nbd_refined	0.254
r_chiral_restr	0.168
r_bond_refined_d	0.026
r_gen_planes_refined	0.011
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	18685
Nucleic Acid Atoms
Solvent Atoms	919
Heterogen Atoms	4

Software

Software
Software Name	Purpose
XDS	data scaling
PHASER	phasing
REFMAC	refinement
XDS	data reduction