查询词典 amino-azo-benzene

The results of batch experiments showed that the anaerobic biodegradation kinetics of 2-CNB and 4-CNB by granular sludge were follwed by first-order reaction. The nitro groups of 2-CNB and 4-CNB were more easily attacked by electron than chlorines and they were reductively biotransformed to amino groups under anaerobic conditions. The acclimated anaerobic granular sludge, which could dechlorinate 4-chloroanline to aniline, showed that it had the ability of para-dechlorinating. The anaerobic biodegradating on pathway of 2-CNB and 4-CNB were suggested as follows:AbstractIn ZVI(zero-valent iron, Fe0)-reduction system, the nitro groups of 2-CNB and 4-CNB were reductively transformed to amino groups.

2分批试验结果证明，颗粒污泥降解2-CNB和4-CNB遵循一级动力学，在厌氧条件下，CNB发生序列的硝基还原与脱氯作用，苯环上的硝基比氯原子更容易受到亲电子攻击，发生还原反应生成氨基；所获得的颗粒污泥具有对位脱氯活性，可使4-CA进一步脱氯形成苯胺。2-CNB和4-CNB厌氧降解的建议性途径为： ZVI(Zero-valentiron)对2-CNB和4-CNB的作用主要是将苯环上的硝基还原为氨基；在ZVI与污泥共还原转化体系中，ZVI对氯代硝基苯的硝基转化具有一定的促进作用，但因ZVI对中间产物的吸附特性，终产物形成速率趋慢。

Amino acid mutant site A43V locates in N-terminal headpiece of represser protein which binds specifically to DNAand amino acids mutant sites S93L, S102N, G315S, Q180R, M2491, I283T all locate in the core region of represser protein which binds to IPTG.

氨基酸突变位点A43V位于阻遏蛋白氨基末端，是阻遏蛋白和操纵基因的结合区；S93L、S102N、G315S、Q180R、M249I、I283T均位于阻遏蛋白核心区，即阻遏蛋白和IPTG结合区。

The a-amino groups of amino acids react reversibly with aldehydes to form a variety of compounds, each of which is called a Schiff's base.

氨基的α氨基与醛反应是可逆的，可形成多种化合物，每一种都叫希夫碱。

The cDNA (BplPAL1) encoding phenylalanine ammonia-lyase were cloned from Betula platyphylla by reverse transcription polymerase chain reaction and 5' and 3' rapid amplification of cDNA ends, which contains an open reading frame (2322 bp) encoding 773 amino acids. The amino acid sequences contain two functional domains of PAL-HAL and PAL, and the sequence of enzyme active site, which has 60%~73% of consistency with other five plant species and the consistency with Rhizophora mangle is the highest (73.1%).

利用RT-PCR和RACE技术从白桦中克隆了编码苯丙氨酸解氨酶的cDNA，其2322bp的ORF编码773个氨基酸，其推导的氨基酸序列包含PAL-HAL和PAL2个功能域以及酶活性中心序列GTITASGDLVPLSYIA，该序列同其它5种植物的序列一致性为60%~73%，其中与美洲红树最高为73.1%。

Sequence analysis revealed the presence of a 735 bp open reading frame encoding 244 amino acids protein, which shares 32.9 %~49.2% amino acids sequence similarity to PRAI proteins from other species of Saccharomycetales.

序列分析显示，该基因编码区全长735 bp，编码的磷酸核糖氨基苯甲酸同分异构酶氨基酸序列与其他酵母来源的PRAI蛋白同源性在32.9%~49.2%之间。

Synthesis and characterization of tridentate chiral ligands, a series of Schiff-bases which are synthesized by salicylaldehyde, 2-pyridinecarboxaldehyde and amino alcohols derived from the amino acids without coordination group on side chain.

由侧链不带配位基团的天然氨基酸合成的氨基醇与水杨醛及2-吡啶醛缩合的Schiff-Base等三齿配体的合成与结构分析。

To achieve this, further fundamental studies on the optical resolutions of the selected target carboxylic acids and neutral amino acids have been carried out in organic solvents respectively with acidic, basic, and esters of tartaric acid resolving agents, along with the racemization of the neutral amino acids catalyzed by salicylaldehyde.

为此，分别选择代表性的有机酸和中性氨基酸在有机溶剂中与酸性、碱性和酯类拆分剂分别进行光学拆分的深入研究，同时研究了水杨醛催化下L-型中性氨基酸的销旋催化研究。

The cDNA was 919bp in length and contained a complete Open Reading Frame of 576bp, encoding a protein of 192 amino acid residues. The deduced amino acids of OsRPS7 showed 88%、72% and 72% identity with those from Secale cereale、Arabidopsis thaliana and Brassica oleracea, respectively.

该cDNA序列全长919bp，编码192个氨基酸；其与黑麦、拟南芥和芸薹的S7核糖体蛋白的氨基酸一致率分别为88%、72%和72%。

A method for determination of the four metabolites of nitrofuran antibiotics such as 3-amino-2-oxazolidinone, 3-amino-5-morpholinomethyl-2- oxazolidinone, semicarbazide and 1-aminohydantoin in Poultry Tis- sues by LC-MS-MS was developed.

本文建立了用高效液相色谱-串联质谱测定禽肉组织中3-氨基-2-唑烷基酮、5-甲基吗啉-3-氨基-2-唑烷基酮、氨基脲和1-氨基-2-内酰脲4种硝基呋喃类抗生素代谢物的方法。

Substraction of Composite Amino Acid of Yellow Mealworm and Production of Insectical Liquor of Amino Acid .

黄粉虫复合氨基酸的提取及氨基酸虫酒的制作。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。