Abstract
Protein phosphatase inhibitor-1 (inhibitor-1 or I-1) is involved in signal transduction and is an endogenous inhibitor of protein phosphatase-1. The mouse I-1 protein sequence has been deduced from cDNA and is strongly homologous to the published rat sequence. A mouse genomic library was screened, and the I-1 gene was characterized and localized by fluorescent in situ hybridization (FISH) to chromosome 15F. Protein expression in a range of embryonic and adult tissue was analysed using confocal microscopy. Inhibitor-1 is expressed by: the coelomic epithelium; the epithelial bounding layer of cells of the kidney, lung, liver, heart, intestine and gonad; and the surface ectoderm. The blast cells of the kidney do not express I-1. We conclude that I-1 is a marker for mesothelium.
| Original language | English |
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| Pages (from-to) | 237-41 |
| Number of pages | 5 |
| Journal | Mechanisms of Development |
| Volume | 96 |
| Issue number | 2 |
| Publication status | Published - 2000 |