1OCB | pdb_00001ocb

Structure of the wild-type cellobiohydrolase Cel6A from Humicolas insolens in complex with a fluorescent substrate

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6		THE PROTEIN WAS CONCENTRATED IN WATER TO 7 MG/ML IT WAS INCUBATED 1H PRIOR CRYSTALLISATION WITH THE 5MM OF THE SUBSTRATE 16% PEG5KMME AND 200 MM CALCIUM ACETATE WERE USED AS PRECIPITANT AND 100 MM SODIUM ACETATE PH 4.6 AS BUFFER.

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.763	α = 90
b = 155.681	β = 118.42
c = 51.218	γ = 90

Symmetry
Space Group	P 1 21 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	ADSC CCD		2000-11-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		ESRF	ID14-4

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	1.75	40	97.5	0.041	17.3	2.2		69418		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.81	91.3		0.128	6	2

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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2BVW	1.75	38.92	63815	3394	97.7	0.135	0.133	0.1503	0.168	0.1827	RANDOM	9.06

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]
1.68		0.25	-1.26		-0.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.904
r_scangle_it	3.5
r_scbond_it	2.331
r_angle_refined_deg	1.578
r_mcangle_it	1.348
r_angle_other_deg	0.911
r_mcbond_it	0.796
r_symmetry_vdw_other	0.258
r_nbd_other	0.255
r_nbd_refined	0.221
r_symmetry_vdw_refined	0.18
r_symmetry_hbond_refined	0.154
r_xyhbond_nbd_refined	0.131
r_chiral_restr	0.1
r_nbtor_other	0.083
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_gen_planes_other	0.006
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5630
Nucleic Acid Atoms
Solvent Atoms	715
Heterogen Atoms	230

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing