1JNF

Rabbit serum transferrin at 2.6 A resolution.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		Structure at 3.3 A determined by MIR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Batch crystallisation	5.4	279	0.01M Tris/HCl, acetic acid or HCl, pH 5.4, Batch crystallisation, temperature 279K

Crystal Properties
Matthews coefficient	Solvent content
3.68	67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 127.19	α = 90
b = 127.19	β = 90
c = 144.85	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	277	IMAGE PLATE	MARRESEARCH	Pt-coated quartz	1993-12-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6	0.87	SRS	PX9.6

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	2.6	30	97.7	0.057	9.9	5.6	36323	36323			57.8

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)
	2.6	2.67	85.6		0.248	2.7	2.7	2290

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		THROUGHOUT	Structure at 3.3 A determined by MIR	2.6	30	34433	34433	1808	97.61	0.187	0.187	0.185	0.223	RANDOM	44.391

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]
-0.58			-0.58		1.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	22.107
r_dihedral_angle_1_deg	4.7
r_scangle_it	4.632
r_scbond_it	2.704
r_mcangle_it	2.016
r_angle_refined_deg	1.942
r_mcbond_it	1.077
r_angle_other_deg	0.933
r_nbd_refined	0.254
r_nbd_other	0.235
r_symmetry_hbond_refined	0.213
r_symmetry_vdw_other	0.2
r_xyhbond_nbd_refined	0.178
r_xyhbond_nbd_other	0.164
r_chiral_restr	0.121
r_symmetry_vdw_refined	0.099
r_bond_refined_d	0.02
r_gen_planes_refined	0.008
r_gen_planes_other	0.003
r_bond_other_d	0.001
r_nbtor_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5216
Nucleic Acid Atoms
Solvent Atoms	206
Heterogen Atoms	11

Software

Software
Software Name	Purpose
MOSFLM	data reduction
ROTAVATA	data reduction
MLPHARE	phasing
REFMAC	refinement
CCP4	data scaling
ROTAVATA	data scaling