1SFP

CRYSTAL STRUCTURE OF ACIDIC SEMINAL FLUID PROTEIN (ASFP) AT 1.9 A RESOLUTION: A BOVINE POLYPEPTIDE FROM THE SPERMADHESIN FAMILY

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.7		AMMONIUM SULFATE, PH 4.7, POLYETHYLENEGLYCOL 4000, 10% DIOXANE

Crystal Properties
Matthews coefficient	Solvent content
2.04	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.55	α = 90
b = 52.44	β = 90
c = 48.19	γ = 90

Symmetry
Space Group	P 21 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	298	IMAGE PLATE	MARRESEARCH			M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1

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	1.9	30	94.8	0.082	8.4	5.1		8773

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.9	1.97	98

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	AB INITIO	1.9	10	8231		94.8	0.173

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
4		948

RMS Deviations
Key	Refinement Restraint Deviation
s_from_restr_planes	0.348
s_similar_adp_cmpnt	0.119
s_zero_chiral_vol	0.107
s_non_zero_chiral_vol	0.107
s_angle_d	0.022
s_anti_bump_dis_restr	0.014
s_bond_d	0.006
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	884
Nucleic Acid Atoms
Solvent Atoms	74
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHELXL-96	model building
SHELXL-96	refinement
SHELXL-96	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.