2FXL:
reference: Recapture of [S]-allantoin, the product of the two-step degradation of uric acid, by urate oxidase., Gabison L, Chiadmi M, Colloc'h N, Castro B, El Hajji M, Prange T, FEBS Lett. 2006 Apr 3;580(8):2087-91. Epub 2006 Mar 10. PMID: 16545381

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