Pentraxins

Pentraxins are either proteins of the immune system or on these homologous proteins. Differences are short and long pentraxins. Their function is very different. A common feature is a composition of each 5 identical protomers, the short pentraxins are to each other and homologous to the C -terminal halves of the protein long pentraxins.

Short pentraxins

• CRP = C-reactive protein
• SAP = serum amyloid P

Long pentraxins

• PTX3
• Apexin
• XL PXN1 (XL = Xenopus laevis, a frog )
• NPTX1 = neuronal pentraxin np1
• NPTX2 neuronal pentraxin = np2 = NARP
• NPR = neuronal pentraxin receptor