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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Mouse and human neuronal pentraxin 1 ( NPTX1): conservation, genomic structure, and chromosomal localization.

We have previously identified novel members of the pentraxin family (neuronal pentraxin 1 and 2) that are expressed in the nervous system. Neuronal pentraxin 1 ( NP1) was identified as a rat protein that may mediate the uptake of synaptic material and the presynaptic snake venom toxin, taipoxin. NP2 was identified as a separate gene discovered by screening for a human homolog for NP1. Here, we report human cDNA and mouse genomic DNA sequences for NP1 (gene symbol NPTX1). Human NP1 and mouse NP1 show 95 and 99% amino acid identity, respectively, with rat NP1 and conserve all potential glycosylation sites. Like rat NP1, human NP1 message is large (6.5 kb) and is exclusively localized to the nervous system. The mouse NP1 gene is 13 kb in length and contains four introns that break the coding sequence of NP1 in the same positions as the introns of the human NP2 gene. The human and mouse NP1 genes are localized to chromosome 17q25.1-q25.2 and chromosome 11e2-e1.3, respectively. These data demonstrate the existence of a separate family of pentraxin proteins that are expressed in the human brain and other tissues and that may play important roles in the uptake of extracellular material.[1]


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