Origin of the murine implantation serine proteinase subfamily
The S1 serine protease family is one of the largest gene families known. Within this family there are several subfamilies that have been grouped together as a result of sequence comparisons and substrate identification. The grouping of related genes allows for the speculation of function for newly f...
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Published in | Molecular reproduction and development Vol. 69; no. 2; pp. 126 - 136 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Hoboken
Wiley Subscription Services, Inc., A Wiley Company
01.10.2004
Wiley-Liss |
Subjects | |
Online Access | Get full text |
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Summary: | The S1 serine protease family is one of the largest gene families known. Within this family there are several subfamilies that have been grouped together as a result of sequence comparisons and substrate identification. The grouping of related genes allows for the speculation of function for newly found members by comparison and for novel subfamilies by contrast. Analysis of the evolutionary patterns of genes indicates whether or not orthologs are likely to be identified in other species as well as potentially indicating that hypothesized orthologs are in fact not. Looking at subtle differences between subfamily members can reveal intricacies about function and expression. Previously, we have described genes encoding two novel serine proteinases, ISP1 and ISP2, which are most closely related to tryptases. The ISP1 gene encodes the embryo‐derived enzyme strypsin, which is necessary for blastocyst hatching and invasion in vitro. Additionally both ISP1 and ISP2 are co‐expressed in the endometrial gland during the time of hatching, suggesting that they may also both participate in zona lysis from within the uterine lumen. Here, we demonstrate that the ISPs are tandemly linked within the tryptase cluster on 17A3.3. We suggest that remarkable similarities within the 5′‐untranslated and first intron regions of ISP1 and ISP2 may explain their intimate co‐regulation in uterus. We also suggest that ISP genes have evolved through gene duplication and that the ISP1 gene has also begun to adopt an additional new function in the murine preimplantation embryo. Mol. Reprod. Dev. 69: 126–136, 2004. © 2004 Wiley‐Liss, Inc. |
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Bibliography: | Derrick. E. Rancourt is a scholar of the Alberta Heritage Foundation for Medical Research. The Canadian Institutes of Health Research The Alberta Heritage Foundation for Medical Research ark:/67375/WNG-F4GXMZZQ-3 istex:70ABB7AE978BCFB0D11F772FFDA83DDC0B4F27BF Canadian Institutes of Health Research - No. 14702 ArticleID:MRD20115 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1040-452X 1098-2795 |
DOI: | 10.1002/mrd.20115 |