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We have identified the first putative integral membrane pentraxin and named it neuronal pentraxin receptor (NPR). NPR is enriched by affinity chromatography on columns of a snake venom toxin, taipoxin, and columns of the taipoxin-binding proteins neuronal pentraxin 1 (NP1), neuronal pentraxin 2 (NP2), and taipoxin-associated calcium-binding protein 49(More)
Neuronal pentraxin 1 (NP1), neuronal pentraxin 2 (NP2), and neuronal pentraxin receptor (NPR) are members of a new family of proteins identified through interaction with a presynaptic snake venom toxin taipoxin. We have proposed that these three neuronal pentraxins represent a novel neuronal uptake pathway that may function during synapse formation and(More)
We identified, by affinity chromatography, two putative binding proteins for the presynaptic snake venom toxin taipoxin. We have previously characterized one of these proteins [neuronal pentraxin (NP)] as a neuronally secreted protein with homology to acute-phase proteins. Here we report the identification of the second protein as a 49-kDa lumenal calcium(More)
The structures of the sugar kinase/heat shock 70/actin superfamily of enzymes show that the active site is located in a deep cleft between two domains whose relative movement defines a domain closure conformational change thought to be involved in the catalytic and regulatory properties of members of the superfamily. To investigate the role of the domain(More)
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