The penrtaxin (a.k.a. pentaxin) family of proteins includes C reactive protein (CRP) [4], serum amyloid P component protein (SAP) and female protein (FP; a hamster homologue of SAP) [1], all of which are involved in acute immunological responses [2-3]. This family of proteins is characterised structurally by a discoid arrangement of five noncovalently bound subunits.

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1. Coe JE, Ross MJ. (1997) Electrophoretic polymorphism of a hamster pentraxin, female protein (amyloid P component). Scand J Immunol, 46 (2): 180-6. [PMID:9583999]

2. Cox N, Pilling D, Gomer RH. (2014) Serum amyloid P: a systemic regulator of the innate immune response. J Leukoc Biol, 96 (5): 739-43. [PMID:24804675]

3. Gewurz H, Zhang XH, Lint TF. (1995) Structure and function of the pentraxins. Curr Opin Immunol, 7 (1): 54-64. [PMID:7772283]

4. Offret H, Nou B, Lefrançois A, Saraux H. (1977) [False macular depression and retraction of the internal border in Jaffe's syndrome]. Bull Soc Ophtalmol Fr, 77 (8-9): 909-12. [PMID:614930]