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

Murine and human cathepsin Z: cDNA-cloning, characterization of the genes and chromosomal localization.

A novel murine cysteine protease from the family of papain-like cysteine proteinases was identified by dbEST-database search. A 1. 4-kb full-length cDNA encoding a predicted polypeptide of 306 amino acids was characterized. The new protease, tentatively named cathepsin Z, exhibits all features characteristics of a papain-like cysteine protease, including the highly conserved residues of the 'catalytic triad'. Cathepsin Z shares only 26-35% overall homology with previously described mammalian papain-like cysteine peptidases and has an unusually short propeptide, which may indicate that it is a member of a putative new subfamily within the family of papain-like cysteine peptidases. Genomic clones covering the murine and human cathepsin Z genes were isolated. They comprise six exons and five introns spanning a 12-kb region of genomic DNA, respectively. Murine cathepsin Z was mapped to chromosome 2, a region with synteny homology to a region of human chromosome 20 to which human cathepsin Z has been mapped previously. Northern blot analysis revealed ubiquitous expression of murine cathepsin Z. Multiple transcriptional start sites were identified for the murine cathepsin Z gene and together with the absence of a TATA box, a high G+C content, a CpG island and the presence of several Sp1-binding sites in the promoter region, murine cathepsin Z may be classified as a 'housekeeping' gene.[1]

References

  1. Murine and human cathepsin Z: cDNA-cloning, characterization of the genes and chromosomal localization. Deussing, J., von Olshausen, I., Peters, C. Biochim. Biophys. Acta (2000) [Pubmed]
 
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