Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8978206 | Developmental & Comparative Immunology | 2005 | 9 Pages |
Abstract
We previously characterized a Crassostrea gigas tissue inhibitor of metalloproteinase (Cg-timp 1.3) with potential role in wound healing and defense mechanisms. Here we isolated a second cDNA (Cg-timp 1.1) encoding a protein that contains the characteristic signature of TIMP proteins. Sequence analysis of the two transcripts showed that they originate from two distinct genes. The two proteins, Cg-TIMP 1.1 and 1.3, are closely related and share 81% identity. Northern blot analysis of Cg-timp gene expression in adult oyster hemocytes indicated that the ratio between the two transcripts was constant from one oyster to another (Cg-timp 1.1 and 1.3 represent 32 and 68%, respectively). Conversely, during ontogenesis the expression pattern of the two Cg-timp genes was different. Indeed, Cg-timp 1.3 mRNAs were detected from the larval D stage whereas Cg-timp 1.1 transcripts were undetectable up to 22 days post-fertilization. The difference in expression pattern of the two Cg-timp genes may reveal distinct implications of these genes in the embryos and larvae developments.
Related Topics
Life Sciences
Biochemistry, Genetics and Molecular Biology
Developmental Biology
Authors
Caroline Montagnani, Ana Tirape, Viviane Boulo, Jean-Michel Escoubas,