7CZJ

The Crystal Structure of Family 20 CBM of Maltotetraose-forming Amylase from Pseudomonas Saccharophila STB07

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2Z0B

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293.15	0.5 M ammonium sulfate, 0.1 M sodium citrate tribasic dehydrate. 1.0 M lithium sulfate monohydrate

Crystal Properties
Matthews coefficient	Solvent content
3.63	66.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.413	α = 90
b = 79.883	β = 90
c = 92.655	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 PILATUS3 S 6M		2020-06-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL19U1	0.978910	SSRF	BL19U1

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	1.4953	19.7425	99.15	0.073	14.9	6.7		48893			15.36

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	1.495	2			0.073

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2Z0B	1.495	19.75	48893	2373	99.116	0.1866	0.1854	0.17	0.2101	0.2	14.064

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]
-0.13			0.446		-0.316

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.383
r_dihedral_angle_4_deg	15.753
r_dihedral_angle_3_deg	14.958
r_dihedral_angle_1_deg	9.529
r_lrange_it	2.688
r_lrange_other	2.688
r_angle_refined_deg	1.746
r_mcangle_it	1.594
r_mcangle_other	1.593
r_scangle_it	1.201
r_scangle_other	1.2
r_angle_other_deg	1.137
r_mcbond_other	1.062
r_mcbond_it	1.061
r_scbond_it	0.807
r_scbond_other	0.807
r_symmetry_xyhbond_nbd_refined	0.522
r_nbd_other	0.499
r_symmetry_nbd_refined	0.495
r_nbd_refined	0.328
r_xyhbond_nbd_refined	0.259
r_symmetry_nbd_other	0.236
r_nbtor_refined	0.171
r_symmetry_xyhbond_nbd_other	0.113
r_symmetry_nbtor_other	0.076
r_chiral_restr	0.06
r_bond_refined_d	0.008
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1444
Nucleic Acid Atoms
Solvent Atoms	285
Heterogen Atoms	10

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
PDB_EXTRACT	data extraction