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

Members of the raf gene family exhibit segment-specific patterns of expression in mouse epididymis.

The proto-oncogene c-raf-1 and the related genes A-raf and B-raf encode serine/threonine protein kinases thought to be involved in regulating gene expression by acting as part of second-messenger signaling pathways within the cell. Among the tissues in which A-raf and c-raf-1 have been shown to be expressed was mouse epididymis. The present studies were undertaken to determine if the raf family genes exhibited specificity in their pattern of expression that might be indicative of specific function in the epididymis. Northern and in situ hybridization analyses demonstrated that c-raf-1 mRNA was expressed as a 3.1 kb transcript at uniform levels throughout the length of the epididymis in all types of epididymal epithelial cells. Neither the germ cell-specific testicular transcripts nor the somatic transcripts of B-raf were detected by either Northern or in situ hybridization analysis in any region of the epididymis. A-raf, expressed as two transcripts of 2.6 and 4.3 kb, was the only gene examined which exhibited a segment-specific pattern of expression, being highest in the principal epithelial cells of the proximal caput epididymis and decreasing progressively in more distal regions of the tubule. These studies indicate that each raf gene exhibits a characteristic pattern of expression in the epididymis; A-raf in particular may play a unique regulatory role in the regionalized functions of the epididymis.[1]

References

  1. Members of the raf gene family exhibit segment-specific patterns of expression in mouse epididymis. Winer, M.A., Wadewitz, A.G., Wolgemuth, D.J. Mol. Reprod. Dev. (1993) [Pubmed]
 
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