No is an intercellular messenger synthesized from l - arginine by no synthase ( nos ) . as a liposoluble gas , no can affect other tissues by diffusion after produced in local tissue in the brain 体内的no是由no合成酶( nos )催化l -精氨酸而产生的，是一种结构简单、易扩散的高脂溶性气体物质。
0 mg / 1 6ba . shoot buds were formed on subcultured pieces of callus with ms medium containing 0 . 3 mg / 1 naphtaleneacetic acid ( naa ) and 2mg / 16ba . the regenerated shoots rooted readily on ms medium plus 0 . 5 mg / 1 naa 研究发现精氨酸( arg ) 、甲硫氨酸( met ) 、丝氨酸苏氨酸( ser thr )并不是黄精凝集素生物学活性的必需基团。
There were not only varieties of amino acid , but also eight kinds of essential amino acid to human body in this plant . the content of arginine was 16 . 6 % , which was more than other foods 氨基酸种类齐全，不但含有多种氨基酸（ 17种） ，而且含有人体所需的8种必需氨基酸，其中精氨酸的含量尤为突出，达到16 . 6 % ，这是任何其它食物所达不到的。
As a result of the multifactorial nature of this syndrome , prevention and treatment options can include one or a combination of the following : dialysis , erythropoietin , cryoprecipitate , desmopressin , and conjugated estrogens 因为此综合征有多致病因素，所以预防和治疗措施可包含以下一种或多种：透析，促红细胞生成素，冷沉淀，血管精氨酸加压素，和共轭雌激素。
In comparison with the results obtained with the control group , the concentrations of his , pro and ala in tobacco dried on the sheet metal decreased 30 % - 50 % , while those of asp , pro , lys , his , and arg in tobacco dried with high expansion dryer decreased significantly 而高温气流干燥与对照组则表现出明显的差异， 17种氨基酸的含量均有不同程度降低，尤其是如天门冬氨酸、脯氨酸、赖氨酸、组氨酸、精氨酸有明显的减少。
It has been shown that domain ia is responsible for cell recognition , domain ii is to be involved in translocation of the toxin across membranes , and domain hi catalyzes the adp - ribosylation of elongation factor2 , which arrests protein synthesis and results in cell death 人组蛋白h3是碱性核蛋白，富含精氨酸，在生理条件下， h3的精氨酸带正电荷，而dna的磷酸基团带负电荷，所以组蛋白和dna分子主要依靠静电引力相结合。
Mechanism of glutamate - induced inhibition of pulmonary surfactant lipid synthesis ? mda receptor ( nmdar ) antagonist mk - 801 could reverse glutamate - induced inhibition of [ 3h ] - choline incorporation in lung explants ; ? he expression of nmdar1 subtype existed in alveolar type ii epithelial cells ; ? he effect of glu on pc synthesis required l - arginine in cultured lung explants , nos activity and no production were increased significantly in lung explants with glu treatment ; and mk - 801 and nos inhibitor l - nna could block the increase of nos activity and no production induced by glu ; l - nna also could reverse the inhibition of [ 3h ] - choline incorporation induced by glu ; ( 4 ) mda content increased and sod level decreased in cultured lung explants of glu treament groups , mk - 801 and l - nna could reverse these effects ; ( 3 ) mk - 801 , l - nna could block the release of ldh induced by glu 谷氨酸对肺表面活性物质脂质合成抑制的机制研究nmda受体拮抗剂mk - 801能逆转glu所致肺组织[ ~ 3h ] -胆碱掺入减少的效应；肺泡上皮细胞有nmda受体nmdar1亚单位的表达； glu对ps脂质合成的影响依赖l -精氨酸的存在， glu可使肺组织匀浆中nos活性、 no合成量升高； mk - 801 、 nos的抑制剂l - nna均可阻断glu所致的这些效应； l - nna可逆转glu所致肺组织[ ~ 3h ] -胆碱掺入减少的效应； glu可使肺组织匀浆中mda硕士学位论文中文摘要含量增高、 sod水平下降。 mk七0 、 l nna能阻断q所致的这些效应； mk80 、 l nna还能阻断gill诱导的ldh释放增多的效应。
According to the purity and the activity recovery , the recombinant enzyme was well purified by both of these two separation combinations . like natural gloshedobin , the recombinant enzyme exhibited strong esterase activity using tripeptide p - nitroanilide derivatives as substrate , but hydrolyzed n a - p - tosyl - l - arginine methyl ester ( tame ) or n a - benzoyl - l - arginine ethyl ester ( baee ) very weakly 与天然蛇毒类凝血酶一致，当用三肽p山itroanilide衍生物作为底物时，分泌表达的重组大连蛇岛蝗蛇毒类凝血酶具有较强的生色底物活性，但用精氨酸甲酯如tame （ na厂tosyl l ar 。
A mixture of three amino acids ( arg , gly , glu ) labeled with fluorescein isothiocyanate ( fitc ) was separated in pdms microfluidic chip , the separation voltage is 200v / cm , the separation time is less than 120 seconds ; according to ccd fluorescence images , two distinct physical processes - stacking and destacking during sample injection were studied qualitatively ; rhodamine b , a kind of temperature - dependent fluorescence dye , was used as probe to develop a temperature - fluorescence intensity equation , then temperature - color map in microchannels was constructed , and temperature trait in microchannels on the pdms microfluidic chip was analysed . according to the results , we conclude that the electric field applied to the pdms microfluidic chip should not exceed 400v / cm 利用pdms微流控芯片对fitc标记的精氨酸、甘氨酸、谷氨酸混合物进行了电泳分离，分离电压为200v cm ，分离时间不到120秒；通过拍到的荧光显微图像对电泳注样过程中复杂的样品分子积聚与解聚现象作定性的分析；以荧光染料rhodamineb为温度荧光探针，建立了pdms微流控芯片上的温度-荧光强度的关系公式，并利用matlab图像处理工具箱构建出微流体沟道内的温度色图，对pdms微流控芯片的微流道温度特性进行了分析，根据实验结果，我们认为对于pdms微流控芯片来说，在进行需要外加电场作用的试验时，外加电场不应超过400v cm 。
The lysine and egg ammonia sour of fish meal is high , but the arginine content is very much low , this is opposite with most other amino acid fodder , therefore , when make up day grain in fish meal , it is very easy to meet the demands of protein level , and the component of amino acid is also easy balance 鱼粉的赖氨酸与蛋氨酸含量都很高，而精氨酸含量却很低，这与绝大多数饲料的氨基酸组成相反，因而在使用鱼粉配制日粮时，很容易在蛋白质水平满足要求时，氨基酸组成也容易平衡。
