l-phenylalanine 中文意思是什麼
l-phenylalanine
解釋
苯丙氨酸- l : L-beam, L-iron 不等邊角鋼。L,￡＝ 〈拉丁語〉 libra （＝ pound）。
- phenylalanine : n. 【化學】苯基丙胺酸。
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The inclusion behaviors of b - cyclodextrin with some aromatic amino acids such as l - phenylalanine, l - tyrosine and l - tryptophan were studied via ultraviolet and fluorescent spectrometry. the results indicated that inclusion complexes of - cyclodextrin with aromatic amino acids could be formed and the inclusion behaviors were affected by the amount of - cyclodextrin, temperature and ph value
本文研究了?環糊精與芳香族氨基酸l ?苯丙氨酸、 l ?酪氨酸和l ?色氨酸之間的包合作用，考察了?環糊精用量、溫度、時間和ph值等因素對包合作用的影響。 -
The content and source of protein and the composition of amino acids are important in artificial feed, because the ingredients of most feed raw material lack arginine, l - lysine and phenylalanine. high levels of growth, food conversion and survival were obtained with a diet containing 31. 5g arginine kg diet, l - lysine 26. 0 kg diet and phenylalanine 14. 0 kg diet in shrimp culture
：飼料的配製，除考慮蛋白質含量還考慮蛋白質來源和原料氨基酸的組成，因飼料原料大致上缺乏離氨酸，精氨酸和苯丙氨酸如幼蝦飼料中每公斤含 -
Puc18 - 169 was a subcloned plasmid containing the whole operon sequence of l - hydantoinase from arthrobacter bt801 which can convert 5 - benzylhydantoin to l - phenylalanine. hydantoin hydrolase which is responsible for the ring opening of hydantoin is one of the components of hydantoin utility enzymes of arthrobacter bt801. n - carbamoylase is a part of hydantoinase operon which can transform n - carbamoylamino acids into the corresponding amino acids
節桿菌（ arthrobacter ） bt801是由軍事醫學科學院生物工程研究所保存的l -乙內酰脲酶產酶菌株， puc18 - 169是由本室構建的含有節桿菌bt801的l -乙內酰脲酶完整操縱子序列的亞克隆質粒。 -
These results unambiguously demonstrate that a single amino acid residue substitution is sufficient to generate a phenylalanine - insensitive form of arog. furthermore, the mutant a ( l - 15 ) lacking the first fifteen n - terminal amino acid residues exhibits no sensitivity toward phenylalanine in a range of 0 ~ 1 mm phenylalanine
這些結果揭示: 1 ） n一末端在反饋抑制機理中具有重要作用; 2 ） n一末端的缺失使得ar0g緊密二聚體結構解聚，導致四級結構破壞。
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