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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

cDNA sequencing and analysis of POV1 ( PB39): a novel gene up-regulated in prostate cancer.

We recently identified a novel gene ( PB39) (HGMW-approved symbol POV1) whose expression is up-regulated in human prostate cancer using tissue microdissection-based differential display analysis. In the present study we report the full-length sequencing of PB39 cDNA, genomic localization of the PB39 gene, and genomic sequence of the mouse homologue. The full-length human cDNA is 2317 nucleotides in length and contains an open reading frame of 559 amino acids which does not show homology with any reported human genes. The N-terminus contains charged amino acids and a helical loop pattern suggestive of an srp leader sequence for a secreted protein. Fluorescence in situ hybridization using PB39 cDNA as probe mapped the gene to chromosome 11p11.1-p11. 2. Comparison of PB39 cDNA sequence with murine sequence available in the public database identified a region of previously sequenced mouse genomic DNA showing 67% amino acid sequence homology with human PB39. Based on alignment and comparison to the human cDNA the mouse genomic sequence suggests there are at least 14 exons in the mouse gene spread over approximately 100 kb of genomic sequence. Further analysis of PB39 expression in human tissues shows the presence of a unique splice variant mRNA that appears to be primarily associated with fetal tissues and tumors. Interestingly, the unique splice variant appears in prostatic intraepithelial neoplasia, a microscopic precursor lesion of prostate cancer. The current data support the hypothesis that PB39 plays a role in the development of human prostate cancer and will be useful in the analysis of the gene product in further human and murine studies.[1]


  1. cDNA sequencing and analysis of POV1 (PB39): a novel gene up-regulated in prostate cancer. Cole, K.A., Chuaqui, R.F., Katz, K., Pack, S., Zhuang, Z., Cole, C.E., Lyne, J.C., Linehan, W.M., Liotta, L.A., Emmert-Buck, M.R. Genomics (1998) [Pubmed]
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