查询词典 cis-trans

Particular attention will bepaid in the field of gene expression regulation to high-throughput screening andidentification of cis-acting elements within the genome and to investigation ofinteraction manners of these regulatory sequences with regulatory proteins in theconditions of in vivo chromatin contexts.

如何在体内的染色质环境下，高通量、大规模地筛选与检测基因组内的顺式作用元件并研究其与反式作用因子间的相互作用，是当前和今后一个时期内基因表达调控领域内的研究重点之一。

Oxo-(4-solanesylaminophenyl)retinoate was successively synthesized from 13-cis-retinoic acid and solanesol by oxidation, bromization and esterification.

以异维A酸和茄尼醇为原料，经氧化、溴化、酯化等一系列反应合成了4-羰基异维A酸(4-N-茄尼基氨基苯酚)酯，其结构经1H NMR，IR和MS表征。

2S, 3S -2-methyl -3-benzoxyl butanal was obtained from cis-2-butene and acetaldehyde in 56. 3％ yield through Brown Crotylation, oxidization, etc.

以顺-2-丁烯、乙醛为原料，经Brown Crotylation反应、氧化反应等，得到了（2S，3S）-2-甲基-3-苄氧基丁醛，收率为56.3％。

Accession Number: AF151005.Conclusion A single-copy fragment containing cis-acting "CACA" box has been identified, which might be the upstream of a new tumor suppressor gene deleted in tumors of the stomach and small intestine.

在胃、小肠肿瘤组织发生缺失突变的片段可能为某一抑癌基因的前半部分，即含有启动子成分的调控元件部分CACA盒。

Through repairing the fixed bed calandria reactor during the molten salt leakage test in 2×104 t/a cis-butenedioic anhydride unit in Lanzhou Petroleum and Chemical Corporation,a pack of reasonable,practical and feasible technologic means was found to confirm the leakage points caused by molten salt and to repair it in reactor.

通过对兰州石油化工公司2×104t/a顺酐装置中的固定床列管式反应器熔盐渗漏的返修，摸索出一套实用、合理可行的熔盐渗漏漏点确认以及返修的工艺方法，可为类似反应器的制造提供一定的借鉴。

Metabolites, including 1 phenolic diterpene, 2 phenolic acids (rosmarinic acid and caffeic acid), 2 flavonoids (6-methoxyluteolin-7-glucoside and homoplantaginin) and 1 coumaric acid ( cis-4-glucosyloxycinnamic acid), were successfully identified from two rosemary extracts with chloroform-methanol ( v / v , 3/1) and 50% aqueous methanol on the basis of HPLC, UV, NMR and MS data.

基于高效液相色谱、紫外吸收、核磁共振波谱及质谱数据，具有代表性的6个迷迭香代谢物的结构得到了确定，它们分别为1个酚类二萜、2个酚酸、2个黄酮（6-甲氧基木樨草素-7-葡萄糖苷和高车前甙）和1个香豆酸(顺-4-香豆酸葡萄糖苷)。

On the basis of the photoreactivity, spectroscopy, and spectrometry data, we determined the structure of the new photoproduct to be a nonadjacent cis-anti cyclobutane dimer formed between T2 and T7 with the absolute stereochemistry depicted by structure I (Figure 8B).

结论根据photoreactivity、分光学和光谱数据，我们确定新的photoproduct的结构是nonadjacent同边反cyclobutane二聚体被形成在T2和T7之间以结构描述的绝对立体化学I (图8B)。

All-solid-state dye-sensitized TiO2 solar cells with phthalocyanine copper as the hole transporting layer and cis-2Bis(2,2'-bipyridyl-4,4'-dicarboxylate) ruthenium (N3) as the dye were fabricated.

利用铜酞菁空穴传输材料制备了全固态染料敏化纳米TiO_2太阳能电池。

The most common materials are amorphous silicon (a-Si, still silicon, but in a different form), or the polycrystalline materials : cadmium telluride and copper indium diselenide.

最常用的材料是非晶硅(a-si，依然是硅，但是不同的形式)或者是多晶硅，镝化镉，铜铟砷CIS，CIGS

The all cis-structure of the cyclizative product was found. The construction of the enolic hydroxyl structure became easier and excellent.

合成中发现环化产物为全顺式结构，烯醇式结构的建立更为简洁、高效，异丙基在较复杂的结构下实现了一步引入。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。