Refolded recombinant β-secretase crystals and methods...

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Blood proteins or globulins – e.g. – proteoglycans – platelet...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

08063185

ABSTRACT:
The present application relates to methods for growing crystals of both the uncomplexed and complexed forms of β-secretase (BACE) polypeptide. The present application also relates to crystalline forms of uncomplexed BACE and the three-dimensional structure of BACE, as determined from the crystals. In addition, the present application relates to the use of crystalline forms of BACE to identify ligands, preferably inhibitors (antagonists), which bind to, and preferably inhibit the enzymatic activity of, BACE. Furthermore, the present application relates to nucleic acid sequences encoding BACE polypeptide, and methods for making BACE in greater quantity than prior methods, resulting in more effective crystallization.

REFERENCES:
patent: 7217556 (2007-05-01), Benson et al.
patent: 7384773 (2008-06-01), Benson et al.
patent: 7442537 (2008-10-01), Benson et al.
patent: 2001/0016324 (2001-08-01), Gurney et al.
patent: 2001/0044521 (2001-11-01), Lin
patent: 2002/0055459 (2002-05-01), Chopra et al.
patent: 2004/0014194 (2004-01-01), Beyer et al.
patent: WO 01/00663 (2001-01-01), None
patent: WO 01/00665 (2001-01-01), None
patent: WO 02/25276 (2002-03-01), None
patent: WO 03/012089 (2003-03-01), None
Branden et al., Introduction to Protein Structure Second Edition, Garland Publishing Inc., New York, 1999, pp. 375, 374 and 382.
Drenth et al., Principles of X-ray Crystallography, Springer, New York, 1999, pp. 1-21.
Kierzek et al., Models of protein crystal growth., Biophys Chem, 91:1-20, 2001.
Wiencek, New Strategies for Protein Crystal Growth., Ann Rev Biomed Eng, vol. 1:505-534, 1999.
Buts et al., Impact of natural variation in bacterial F17G adhesins on crystallization behaviour., Acta Cryst D61:1149-1159, 2005.
Skarzynski et al., Industrial persepctive on X-ray data collection and analysis., Acta Cryst D62:102-107, 2006.
Weber, Methods in Enzymology, 1997, vol. 276, pp. 13-22.
Cudney, Protein Crystallization and Dumb Luck., Rigaku Journal, 1999, vol. 16, No. 1, pp. 1-7.
McPherson, Current approaches to macromolecular crystallization., Eur. J. Biochem. 189:1-23, 1990.
Kennedy et al., Measuring human beta-secretase (BACE1) activity using homogeneous time-resolved fluorescence. Anal Biochem. Aug. 1, 2003;319(1):49-55.
Wang et al., Crystallization of glycosylated human BACE protease domain expressed inTrichoplusia ni. Biochim Biophys Acta. May 6, 2004;1698(2):255-9.
Vassar et al., Beta-secretase cleavage of Alzheimer's amyloid precursor protein by the transmembrane aspartic protease BACE. Science. Oct. 22, 1999;286(5440):735-41.
Sinha et al., Purification and cloning of amyloid precursor protein beta-secretase from human brain. Nature. Dec. 2, 1999;402(6761):537-40.
Hussain et al., Identification of a novel aspartic protease (Asp 2) as beta-secretase. Mol Cell Neurosci. Dec. 1999;14(6):419-27.
Lin et al., Human aspartic protease memapsin 2 cleaves the beta-secretase site of beta-amyloid precursor protein. Proc Natl Acad Sci U S A. Feb. 15, 2000;97(4):1456-60.
Creemers et al., Processing of beta-secretase by furin and other members of the proprotein convertase family. J Biol Chem. Feb. 9, 2001;276(6):4211-7.
Bennett et al., A furin-like convertase mediates propeptide cleavage of BACE, the Alzheimer's beta-secretase. J Biol Chem. Dec. 1, 2000;275(48):37712-7.
Esch et al., Cleavage of amyloid beta peptide during constitutive processing of its precursor. Science. Jun. 1, 1990;248(4959):1122-4.
Hong et al., Structure of the protease domain of memapsin 2 (beta-secretase) complexed with inhibitor. Science, vol. 290, pp. 150-153 (2000).
Mallender et al., Characterization of recombinant, soluble beta-secretase from an insect cell expression system. Mol. Pharm., vol. 59, No. 3, pp. 619-626 (2001).
Bruinzeel et al., Recombinant insect cell expression and purification of human beta-secretase (BACE-1) for X-ray crystallography. Prot. Exp. and Pur., vol. 26, pp. 139-148 (2002).
Witkowski et al., Conversion of a beta-ketoacyl synthase to a malonyl decarboxylase by replacement of the active-site cysteine with glutamine. Biochemistry. Sep. 7, 1999;38(36):11643-50.
Lilie et al., Advances in refolding of proteins produced inE. coli. Curr Opin Biotechnol. Oct. 1998;9(5):497-501.
Giege, et al., (1994) Acta Cryst., D50, 339-350.
Branden, et al., (1999) Introduction to Protein Structure, Second Edition, Garland Publishing Inc., New York, pp. 374-375 and 382.
Drenth (1995) Principles of X-ray Crystallography, Springer, New York, p. 1.
Kierzek, et al., (2001) Biophysi Chem, 91:1-20.
Wiencek (1999) Ann Rev Biomed Eng. 1:505-534.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Refolded recombinant β-secretase crystals and methods... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Refolded recombinant β-secretase crystals and methods..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refolded recombinant β-secretase crystals and methods... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4288241

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.