Isolated nucleic acid molecule encoding a novel...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/12 (2006.01) A61K 31/7088 (2006.01) A61K 38/17 (2006.01) A61K 48/00 (2006.01) C07K 14/47 (2006.01) C12N 9/14 (2006.01) C12P 21/02 (2006.01) C12Q 1/68 (2006.01) G01N 33/574 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2487077

An isolated nucleic acid is provided which encodes a novel centromere- associated motor protein, HsCENP-E. Also provided are the purified polypeptide encoded by the nucleic acid sequence, and antibodies immunologically specific for the polypeptide. These biological molecules are useful as markers of cellular proliferation, particularly for the identification of cells in the G2 and M phases of the cell cycle. Methods are provided for using the nucleic acid, protein and antibodies for assessing cellular proliferation in biological fluids and tissue samples, and for detecting the presence of autoantibodies to the protein.

L'invention concerne un acide nucléique isolé qui code une nouvelle protéine de type moteur associée à un centromère, HsCENP-E. L'invention concerne également le polypeptide purifié codé par la séquence d'acide nucléique, et des anticorps spécifiques sur le plan immunologique pour le polypeptide. Ces molécules biologiques sont utilisées en tant que marqueurs de prolifération cellulaire, en particulier pour l'identification de cellules dans les phases G2 et M du cycle des cellules. L'invention concerne également des procédés d'utilisation de l'acide nucléique, une protéine et des anticorps pour déterminer la prolifération cellulaire dans des fluides biologiques et des échantillons de tissus, et pour détecter la présence d'autoanticorps à la protéine.

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