期刊
GENOMICS
卷 81, 期 4, 页码 411-421出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S0888-7543(03)00030-2
关键词
leucine-rich repeat; transmembrane protein; cell adhesion; cell signaling; receptor; neuron; nervous system; catenin
Leucine-rich repeat containing proteins are involved in protein-protein interactions and they regulate numerous cellular events during nervous system development and disease. Here we have isolated and characterized a new four-membered family of genes from human and mouse, named LRRTMs, that encode putative leucine-rich repeat transmembrane proteins. Human and mouse LRRTMs are highly conserved, and orthologous genes exist in other vertebrates but not in invertebrates. All LRRTMs, except LRRTM4, are located in the introns of different a-catenin genes, suggesting coevolution of these two gene families. We show by in situ hybridization and RT-PCR that LRRTM mRNAs are predominantly expressed in the nervous system and that each LRRTM possesses a specific, partially nonoverlapping expression pattern. The structure and expression profile of LRRTM mRNAs suggest that they may have a role in the development and maintenance of the vertebrate nervous system. (C) 2003 Elsevier Science (USA). All rights reserved.
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