6,7-Dihydro-5H-cyclopenta[c]py

Preparation of Unnatural Amino Acids with Ammonia-Lyases and 2,3-Aminomutases

of unnatural amino acids. Besides the synthesis of various unnatural α-amino acids with the aid of phenylalanine ammonia-lyases (PALs) utilizing the 3,5-dihydro-5-methylidene-4H-imidazol-4-one (MIO) prosthetic groups, the biotransformations leading to various

鹅〔脱氧〕胆酸 s chenodeoxycholic acid

C 24 H 40 O 4 。 3 α， 7 α - 二羟基 -5 β - 胆烷酸。胆汁酸的一种。在哺乳类、鸟类、鱼类等的胆液中含有和甘氨酸或牛磺酸结合形成的甘氨鹅（脱氧）胆酸或牛磺鹅（脱氧）胆酸。  

Omega质粒DNA中量提取流程

的E.coli 接种于30-50ml LB/抗生素培养液中，37°C搖床培养12~16 h； 2. 取30-50ml的菌液，室温下3，500-5，000xg离心10min收集细菌。 3. 倒弃培养基。加入2.5ml Solution I/RNaseA混和液，漩涡振荡使细胞完全悬浮。 4. 往重悬混和液中加入2.5ml Solution Ii，轻轻颠倒混匀7-10次后可将混合液室温放置2min以提高产量。避免剧烈混和裂解液且裂解反应不要超过5 min。