Human sperm specific lysozyme-like proteins

Drug – bio-affecting and body treating compositions – Immunoglobulin – antiserum – antibody – or antibody fragment,... – Monoclonal antibody or fragment thereof

Reexamination Certificate

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Details

C424S139100, C424S143100, C435S387000, C435S388000, C435S389000, C514S841000

Reexamination Certificate

active

07125550

ABSTRACT:
The present invention relates to two novel, testis-specific proteins (C19 and C23) that arc lysozyme paralogues. The proteins are believed to play a role in capacitation of sperm and the fertilization of the ovum. Therefore these compounds make ideal targets for the design of contraceptive agents. The C19 and C23 proteins can also be modified to establish lysozyme activity and the modified proteins can then be used in all applications that currently exist for lysozymes.

REFERENCES:
patent: 5602005 (1997-02-01), Herr et al.
patent: 5830472 (1998-11-01), Herr et al.
patent: WO 00/28045 (2000-05-01), None
patent: WO 01/00806 (2001-01-01), None
patent: WO 02/00691 (2002-01-01), None
patent: WO 01/59132 (2002-08-01), None
Swissprot Data Base Acc#A40729 Yeh et al, Dec. 5, 1997, Alignment with SEQ ID NO: 2.
Issued Patents Data Base US6,548,633 Dumas et al Apr. 15, 2003 (priority date Dec. 22, 1998). Alignment with SEQ ID No. 2.
O'Rand et al Designing an effective immunocontraceptive. J Reprod Immunol. Nov. 30, 1997;36(1-2):51-9. Review.
Lea et al A chimeric sperm peptide induces antibodies and strain-specific reversible infertilty in mice. Biol Reprod. Sep. 1998;59(3):527-36.
Frayne et al The potential use of sperm antigens as targets for immunocontraception; past, present and future, J Reprod Immunol. May 1999;43(1):1-33. Review.
DataBased Medline EMBASE Biosis Caplus via Winsock to STN. Art search Apr. 9, 2005.
Naz, Rajesh K: “Application of Sperm Antigens in Immunocontraception”, Frontiers in Bioscience 1, e87-95 Sep. 1, 1996.
Shetty, Jagathpala et al.: “Human Sperm Proteome: Immunodominant Sperm Surface Antigens Identified with Sera from Infertile Men and Women”, Biology of Reproduction, vol. 61, pp. 61-69, (1999).
Database EMBL ′Online!, Accession No. Z98304.1, Aug. 11, 1997, Grafham, D..: “Human DNA sequence from clone RPI-54B20 on chromosome Xp1-11.3. Contains . . . the gene for a novel protein similar to lysozyme . . . ”.
Database EMBL ′Online!, Accession No. AQ345840, Jan. 25, 1995, Zhao, S. et al., “RPC111-126G23.TJ RPCI-1 IHomo sapiensgenomic clone RPCI-11-126G23, genomic survey sequence”.
Database EMBL ′Online!, Accession No. BF059393, Oct. 18, 2000, NCI-CGAP: 7k59a01.x1 NCl—CGAP—GC6Homo SapienscDNA clone IMAGE: 3479688 3′ similar to SW:LYCI—ANAPL . . .
Database EMBL Heidelberg, FRG ′Online!, Accession No. AA393240 May 19, 1997, Hillier, L. et al.: zt74a03.rl Soares—testis—NHT Homosapiens cDNA clone.
Database EMBL Heidelberg, FRG ′Online, Accession No. A1190761, Oct. 14, 1998, NCI-CGAP: qd61c06.xl Soares—testis—NHTHomo sapienscDNA clone.
Database EMBL Heidelberg, FRG ′Online, Accession No. P00705, Jul. 21, 1986, Anas Platyrhynchos, Lysozyme C-1 Precurser (EC 3.2.1.17).

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