2H26

human CD1b in complex with endogenous phosphatidylcholine and spacer

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	293	1.5 M ammonium sulfate 5 % (v/v) isopropanol 0.1 M Na citrate, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.6	54.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.828	α = 90
b = 103.898	β = 90
c = 114.829	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	CCD	ADSC QUANTUM 4		2005-07-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.9756	ESRF	ID14-4

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	1.8	32.72	96.4	0.068	0.068	11.8	3.5	43311	43311			27

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.9	85.5		0.198	0.198	3.5	2.3	5545

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1GZP	1.8	20	41074	41074	2181	95.96	0.20729	0.20729	0.20549	0.24101	RANDOM	33.607

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]
1.57			0.32		-1.89

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.634
r_dihedral_angle_4_deg	21.193
r_dihedral_angle_3_deg	12.778
r_dihedral_angle_1_deg	6.221
r_scangle_it	4.076
r_scbond_it	2.686
r_mcangle_it	1.755
r_angle_refined_deg	1.608
r_mcbond_it	1.15
r_nbtor_refined	0.313
r_symmetry_hbond_refined	0.278
r_nbd_refined	0.202
r_symmetry_vdw_refined	0.184
r_xyhbond_nbd_refined	0.154
r_chiral_restr	0.113
r_bond_refined_d	0.016
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2980
Nucleic Acid Atoms
Solvent Atoms	265
Heterogen Atoms	158

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
PHASER	phasing