1CD0

STRUCTURE OF HUMAN LAMDA-6 LIGHT CHAIN DIMER JTO

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1DCL	MCG(PDBCODE:1DCL): VL DIMER WITH WITH CDR LOOPS DELETED.

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		27.5% PEG6000, 0.08 M SODIUM CACODYLATE PH 6.5, 0.1 M SODIUM ACETATE

Crystal Properties
Matthews coefficient	Solvent content
1.97	38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.9	α = 90
b = 60.5	β = 90
c = 73.4	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	MIRRORS	1997-10-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	1.9	30	95	0.076	13.5	4.87		15655			8.4

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)
	1.9	1.94	89.8		0.311	3.3	3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	MCG(PDBCODE:1DCL): VL DIMER WITH WITH CDR LOOPS DELETED.	1.9	8	3	12188	1247	79.2	0.184	0.24	RANDOM	16.8

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]
-0.98			0.4		0.57

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	26.3
x_scangle_it	1.49
x_angle_deg	1.4
x_mcangle_it	1.35
x_scbond_it	1.04
x_mcbond_it	0.78
x_improper_angle_d	0.72
x_bond_d	0.006
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1670
Nucleic Acid Atoms
Solvent Atoms	247
Heterogen Atoms

Software

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