Histidine requirements for

Figure 8,23 reveals that the histidine requirement for the rat is about 0,33%, The data in Figure 8,26 show that dietary histidine is most effectively used at levels of up to 0-25% and that higher levels have an increasing tendency to be broken down, lire amount of breakdown depends on the exact level of amino acid in the diet. 

Another fascinating variant on the KS architecture is the non-elongating KS domain, termed KS . These KS domains are a common feature of trans-AT PKSs, which lack a crucial active site histidine required for chain elongation. It... 

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