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https://hdl.handle.net/2440/48143
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Type: | Journal article |
Title: | The NLRR gene family and mouse development: Modified differential display PCR identifies NLRR-1 as a gene expressed in somitic myogenesis. |
Author: | Haines, B. Gupta, R. Jones, C. Summerbell, D. Rigby, P. |
Citation: | Developmental Biology, 2005; 281(2):145-159 |
Publisher: | Academic Press Inc Elsevier Science |
Issue Date: | 2005 |
ISSN: | 0012-1606 |
Statement of Responsibility: | Bryan P. Haines, Rajeev Gupta, C. Michael Jones, Dennis Summerbell and Peter W.J. Rigby |
Abstract: | During vertebrate embryogenesis, the somites form by segmentation of the trunk mesoderm, lateral to the neural tube, in an anterior to posterior direction. Analysis of differential gene expression during somitogenesis has been problematic due to the limited amount of tissue available from early mouse embryos. To circumvent these problems, we developed a modified differential display PCR technique that is highly sensitive and yields products that can be used directly as in situ hybridisation probes. Using this technique, we isolated NLRR-1 as a gene expressed in the myotome of developing somites but not in the presomitic mesoderm. Detailed expression analysis showed that this gene was expressed in the skeletal muscle precursors of the myotome, branchial arches and limbs as well as in the developing nervous system. Somitic expression occurs in the earliest myoblasts that originate from the dorsal lip in a pattern reminiscent of the muscle determination gene Myf5, but not at the ventral lip, indicating that NLRR-1 is expressed in a subset of myotome cells. The NLRR genes comprise a three-gene family encoding glycosylated transmembrane proteins with external leucine-rich repeats, a fibronectin domain, an immunoglobulin domain and short intracellular tails capable of mediating protein–protein interaction. Analysis of NLRR-3 expression revealed regulated expression in the neural system in developing ganglia and motor neurons. NLRR-2 expression appears to be predominately confined to the adult. The regulated embryonic expression and cellular location of these proteins suggest important roles during mouse development in the control of cell adhesion, movement or signalling. |
Keywords: | Mouse Somite Myotome Myoblast Neuronal leucine-rich repeat (NLRR) |
Rights: | © 2005 Elsevier Inc. All rights reserved. |
DOI: | 10.1016/j.ydbio.2005.01.030 |
Published version: | http://dx.doi.org/10.1016/j.ydbio.2005.01.030 |
Appears in Collections: | Aurora harvest Molecular and Biomedical Science publications |
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