Abstract: The present invention provides: a novel DNA, a carcinoma-associated gene comprising the DNA, a recombinant protein encoded by the DNA, an antibody binding to the protein, an anti-carcinoma agent comprising the antibody, a low-molecular-weight compound binding to the protein, and a screening system. An example of such a novel DNA is a DNA comprising a nucleotide sequence encoding the following polypeptide (a) or (b): (a) a polypeptide, consisting of an amino acid sequence identical to or substantially identical to the amino acid sequence represented by SEQ ID NO: 2; or (b) a polypeptide, consisting of an amino acid sequence derived from the amino acid sequence represented by SEQ ID NO: 2 by deletion, substitution, or addition of one or a plurality of amino acids and having biological activity substantially equivalent to the functions of the polypeptide (a).

Abstract: The present invention provides: a novel DNA, a carcinoma-associated gene comprising the DNA, a recombinant protein encoded by the DNA, an antibody binding to the protein, an anti-carcinoma agent comprising the antibody, a low-molecular-weight compound binding to the protein, and a screening system. An example of such a novel DNA is a DNA comprising a nucleotide sequence encoding the following polypeptide (a) or (b): (a) a polypeptide, consisting of an amino acid sequence identical to or substantially identical to the amino acid sequence represented by SEQ ID NO: 2; or (b) a polypeptide, consisting of an amino acid sequence derived from the amino acid sequence represented by SEQ ID NO: 2 by deletion, substitution, or addition of one or a plurality of amino acids and having biological activity substantially equivalent to the functions of the polypeptide (a).

Abstract: A novel DNA comprising a protein-encoding region is directly cloned from cDNA library originating from human adult whole brain and human fetal whole brain, the base sequence thereof is determined, and the functions thereof are identified. A DNA comprising a base sequence encoding the following polypeptide (a) or (b): (a) a polypeptide consisting of an amino acid sequence which is identical or substantially identical with the amino acid sequence represented by SEQ ID No.1, (b) a polypeptide consisting of an amino acid sequence represented by SEQ ID No.1 in which part of amino acids are deleted, substituted or added, and having substantially the same biological activity as the function of the polypeptide (a), recombinant polypeptide encoded by the above DNAs, and protein comprising the polypeptide.

Abstract: Novel DNAs containing the regions which encodes proteins have been directly cloned from cDNA libraries derived from the human adult whole brain and the human embryonic whole brain, the nucleotide sequences thereof have been determined, and their functions have been identified.

Abstract: The present invention provides synthetic peptide derivatives represented by the formulaP.sup.1 -R.sup.1 -P.sup.2wherein P.sup.1 is a peptide having an amino acid sequence in the SEQ ID NO.:1 of the Sequence Listing, or analogues thereof; P.sup.2 is a peptide having an amino acid sequence in the SEQ ID NO.:2 of the Sequence Listing, or analogues thereof; R.sup.1 denotes a linker with a property that does not interfere with the activity of the each peptide P.sup.1 and P.sup.2 to bind N-terminal end of the peptides P.sup.1 and P.sup.2.The present invention also provides a pharmaceutical composition for the treatment of bone related diseases comprising said peptide derivatives, or a therapeutically acceptable salt thereof, and a pharmaceutically acceptable carrier.The present invention also provides a method of treating bone related diseases in a mammal comprising administering thereto an effective amount of said peptide derivatives, or therapeutically acceptable salts thereof.

Abstract: The present invention provides the sequence of the novel bone-related protein OSF-2 which can be obtained from mammalian bone tissues. The invention further provides a method of production of OSF-2 by recombinant techniques.

Abstract: Bone-associated proteins derived from bone of mammals, including mice and human beings, named OSF-6. The protein is the novel natural type mammal protein, which can play an important role in bone formation, and belongs to a group of transcription control factors.OSF-6 can be used as a therapeutic agent for bone metabolic diseases, and also as a diagnostic agent for bone metabolic diseases, since it may demonstrate a high organ specificity to bone.