1NXC

Structure of mouse Golgi alpha-1,2-mannosidase IA reveals the molecular basis for substrate specificity among Class I enzymes (family 47 glycosidases)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		298	PEG4000, pH 4.5-6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.25	44.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.288	α = 90
b = 72.164	β = 90
c = 129.571	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	IMAGE PLATE	RIGAKU RAXIS IV	MSC Blue Confocal Optics	2002-04-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-D	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.51	62.5		0.06	10.2		81971	73142		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.51	1.63			0.147	3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.51	62.5	82108	69386	3689	89.18	0.17174	0.17079	0.1897	RANDOM	8.55

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]
0.41			-0.39		-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.837
r_sphericity_free	5.32
r_sphericity_bonded	3.069
r_scangle_it	2.587
r_scbond_it	1.664
r_angle_refined_deg	1.382
r_rigid_bond_restr	1.334
r_mcangle_it	1.104
r_angle_other_deg	0.903
r_mcbond_it	0.613
r_nbd_other	0.234
r_symmetry_vdw_other	0.226
r_nbd_refined	0.22
r_symmetry_vdw_refined	0.185
r_xyhbond_nbd_refined	0.124
r_symmetry_hbond_refined	0.121
r_nbtor_other	0.112
r_chiral_restr	0.083
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_gen_planes_other	0.004
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_xyhbond_nbd_other
r_symmetry_hbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3693
Nucleic Acid Atoms
Solvent Atoms	322
Heterogen Atoms	95

Software

Software
Software Name	Purpose
EPMR	phasing
REFMAC	refinement
PROTEUM PLUS	data reduction