| 1. | Comparison of chemical processes of aromatic amino acids and a dipeptide induced by uv light and so - 4
芳香氨基酸及其肽光电离so - 4氧化与光敏化过程的比较研究 |
| 2. | The application of transketolase for industrial purpose , such as production of ethanol , biosynthesis of aromatic amino acids and enantiotopic chemicals were reviewed
本文综述了该酶的工业生产及应用领域，如乙醇生产，芳香族氨基酸和手性物质的生物合成等。 |
| 3. | Chorismate acid is branch point in aromatic amino acids biosynthesis , related to phenylalanine , bifunctional enzymes chorismate mutase / prephenate dehydratase ( encoded by phea ) is rate - limiting enzyme
分支酸是芳香族氨基酸合成途径的分支点，与苯丙氨酸合成有关，双功能酶分支酸变位酶-预苯酸脱水酶( phea基因编码)是关键酶。 |
| 4. | Were investigated in aqueous solution by krf laser flash photolysis . from optical studies , the photoionization of aromatic amino acids produced radicals and hydrated electron , and the interaction of tyrosine and phenylalanine with so
运用激光闪光光解瞬态吸收光谱研究了色氨酸trp酪氨酸tyr ，苯丙氨酸phe和二肽trp - tyr光电离和被so |
| 5. | 8da and the content of cysteine is the highest which attain 22 . 2 % , following are lysine ( 8 . 0 ) and serine ( 7 . 7 % ) . however , there are aromatic amino acid residues and histidine in the amino acid sequence such as tyrosine ( 3 . 3 % ) , phenylalanine ( 3 . 0 % ) and histidine ( 2
序列中还含有少量的芳香族氨基酸，如酪氨酸( 3 . 3 ) ，苯丙氨酸( 3 . 0 )和组氨酸( 2 . 8 ) ，这一点和牡蛎mt相似，而不同于果蝇和哺乳动物mt (不含有芳香族氨基酸和组氨酸) 。 |
| 6. | Ppsa and tkta are the key genes in central metabolism of aromatic amino acids biosynthesis . ppsa encoding phosphoenolpyrucate synthetase a ( ppsa ) which catalyzes pyruvate into pep ; tkta encoding transketolase a which plays a major role in erythrose - 4 - phosphate ( e4p ) production of pentose pathway
Ppsa基因编码磷酸烯醇式丙酮酸合成酶a ( ppsa ) ，该酶催化丙酮酸合成磷酸烯醇式丙酮酸； tkta基因编码转酮酶a ，该酶在磷酸戊糖途径中生成4 -磷酸赤藓糖起主要作用。 |
| 7. | It was observed that the inclusion complexes of 3 - cyclodextrin and its polylactide - garfted copolymer with insulin could be formed and the inclusion behaviors were affected by the amount of 3 - cyclodextrin , temperature as well as ph value . the formation mechanism of the supramolecular systems between 3 - cyclodextrin and insulin was the similar to that between 3 - cyclodextrin and the above - mentioned aromatic amino acids . because of the three - dimensional structure of insulin and the exterior polar groups of its aggregates , the molecular recognition and inclusion of 3 - cyclodextrin with insulin were hindered
由于受主客体之间的尺寸匹配性的影响， ?环糊精与这三种芳香族氨基酸形成了不同包合比的包合物， ?环糊精分别与l ?苯丙氨酸和l ?酪氨酸形成了1 ： 1的包合物，而与l ?色氨酸却形成了2 ： 1的包合物，各包合物的稳定常数也有所不同。 |
| 8. | 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?环糊精与芳香族氨基酸l ?苯丙氨酸、 l ?酪氨酸和l ?色氨酸之间的包合作用，考察了?环糊精用量、温度、时间和ph值等因素对包合作用的影响。 |
| 9. | The product chorismate of this pathway is precursor to the synthesis of the aromatic amino acids phenylalanine , tyrosine , and tryptophan as well as other essential aromatic secondary metabolites such as ubiquinone , menaquinone and vitamin k . phosphoenolpyruvate and shikimate 3 - phophate are converted to 5 - enolpyruvlshimimate - 3 - phosphate and phosphate
芳香族氨基酸苯丙氨酸、酪氨酸、色氨酸和其它一些必需代谢物如泛醌、维生素k2类、维生素k的起始物是莽草酸途径所产生的分枝酸。 |
| 10. | So it has increasing commercial demand . escherichia coli and many other microoganism synthesize aromatic amino acids through the condensation reaction between phosphoenolpyru vate ( pep ) and erythrose - 4 - phosphate ( e4p ) to form 3 - deoxy - d - arabinohep tulosonate 7 - phosphate ( dahp ) . pep and e4p are limiting substrates for formation of dahp
大肠杆菌和许多微生物一样，其合成芳香族氨基酸的起始物是由磷酸烯醇式丙酮酸( pep )和4 -磷酸赤癣糖( e4p )二者缩合形成的3 -脱氧- -阿拉伯庚酮糖酸- 7 -磷酸( dahp ) 。 |
