Molecular cloning of human myelin-associated glycoprotein.

Journal of Neuroscience Research
G SpagnolN Latov

Abstract

The nucleotide sequence for human myelin-associated glycoprotein (MAG) and its deduced amino acid sequence, obtained by analysis of two overlapping cDNA clones isolated from a human brain cDNA library, is presented and compared to that reported for rat MAG. The sequence provides an open reading frame of 1,878 nucleotides encoding a peptide of 626 amino acids with a calculated molecular weight of 69.1 kD. It is 89% homologous in nucleotide sequence to the large isoform of rat MAG, with 95% homology in the amino acid sequence. It contains 9 potential glycosylation sites, one more than in rat, and shares other key features with rat MAG, including 5 immunoglobulin-like regions of internal homology, an RGD sequence, and potential phosphorylation sites. Its structure appears to be highly conserved in evolution, possibly suggesting a close interdependence between its structure and function. The human gene is located on the proximal long arm of chromosome 19 (19q12----q13.2).

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Feb 6, 1998·Journal of Neuroscience Research·I LaszkiewiczG W Konat
Dec 1, 1992·Journal of Neuroscience Research·L H van den BergN Latov
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