碱性氨基酸

这些细胞穿膜肽均为带有正电荷的长短不等的多肽片段，其中富含精氨酸、赖氨酸等碱性氨基酸残基。

The CPPs are polypeptide segments of various lengths carrying positive charge , rich in such alkaline amino acid residues as arginine , lysine and so on .

该酶的氨基酸组成为：中极性酸性氨基酸占17.29%，极性碱性氨基酸占4.50%，极性中性氨基酸占38.50%，其它为非极性氨基酸；

The acidic amino acid content of the enzyme was 17.29 % , alkaline amino acid 4.50 % and neutral amino acid 38.50 % , and others were nonpolar amino acids .

鸡不同肠段碱性氨基酸转运载体mRNA表达的差异性研究

Difference of Cationic Amino Acid Transporters mRNA Expression in Different Intestinal Segments of Chicken

计算机模拟结果表明，多肽N端碱性氨基酸残基可与酶的活性中心结合。

The results of the computer modeling showed that the basic amino acid residue at N terminus of each oligopeptide was bound to the active sites of the enzyme .

强酸型离子交换纤维PVF-g-SO3H对碱性氨基酸的分离研究

Studies on the Separation of Basic Amino Acids by Strong Acidic Ion Exchange Fiber PVF-g-SO_3H

该毒株有7个潜在糖基化位点；在HA裂解位点附近有6个碱性氨基酸序列插入。

There are 7 potential glycosylation sites and they both share 6 basic aminoacids insert at the cleavage site in the influenza virus isolates .

该蛋白分子中碱性氨基酸总量为33.4%，N末端序列为NH2ProGlnArgHisLys。

Its total basic amino acids amount is 33.4 % , and its N_terminal sequence is NH 2_Pro_Gln_Arg_His_Lys .

推导氨基酸的序列分析表明，其HA蛋白裂解位点的氨基酸序列为-GR-GLF-，仅包含1个碱性氨基酸（R-）残基，符合低致病力AIV的基因特征。

The single basic amino acid at the cleavage site of HA implies the low pathogenic characteristics of the virus isolates .

结果表明N端的类似锌指蛋白的结构不是结合核酸的活性位点，部分缺失C端的碱性氨基酸也不影响其结合。

Our results suggest that the putative zinc finger motif in the N-terminal is not essential to the binding and that partial deletions of the basic regions in the C-terminal also cannot prevent the proteins from binding nuclear acids .

结论HO的碱性氨基酸K39在接受并传递NADPH-细胞色素P450所提供的电子时具有重要作用。

Conclusion The K39 in HO has important effects on accepting and transporting electrons from NADPH-cytochrome P450 reductase .

σ1S蛋白富含碱性氨基酸和α-螺旋，有一个潜在的糖基化位点，但其功能尚不清楚。

OlS protein had many basic amino acids , a-helix and a glycosylation site , but its function is unclear .

其中HA基因已按实验设计删除了与毒力相关的连续5个碱性氨基酸残基（R-R-R-K-K）。

The virulence associated five continuous basic amino acids ( R-R-R-K-K ) of the HA gene were removed .

目的研究和探讨大鼠血红素加氧酶鄄1（RHO鄄1）中保守的碱性氨基酸精氨酸残基和赖氨酸残基对该酶催化功能的影响。

Objective To study the catalytic function of conservative basic amino acid arginine residue and lysine residue on rat heme oxygenase-1 ( RHO-1 ) .

结果表明，含有酸性氨基酸的热水溶液，比仅含NaCl的热卤水、碱性氨基酸和中性氨基酸的热水溶液，更有利于银和金的活化、迁移；

The result shows that the activation and migration of silver and gold in the hydrothermal solution containing acidic amino acids are more favourable than those only containing NaCl , neutral amino acids or alkaline amino acids .

HA蛋白裂解位点的氨基酸组成为RSSR↓GLF，不舍连续的碱性氨基酸，具有低致病性AⅣHA基因裂解位点的序列特征。

The deduced amino acid sequence at the cleavage site of the HA protein was RSSR ↓ GLF , it was match to the characteristic of low virulent strain .

自1996年以来，中国分离的所有H5N1亚型毒株HA裂解位点都有几个碱性氨基酸残基，都是高致病性的，因而不适于作为疫苗。

All H5N1 viruses isolated in China since 1996 have multiple basic amino acids in the cleavage site of HA and therefore are all either highly pathogenic or potentially highly pathogenic avian influenza viruses unsuitable for vaccine production .

结论虫体氨基酸含量下降，尤其是碱性氨基酸与酸性氨基酸、芳香族氨基酸之间比率下降可能是宿主体内杀伤丝虫mf的机制之一。

Conclusion The decrease of the amino acid in microfilariae , especially the ratio of aliphatic amino acid to acidic and aromatic amino acid may be one of mechanisms of microfilariae is killed in host .

蛋白转导域（PTDs）是一段富含碱性氨基酸的短肽。

Protein transduction domain ( PTD ) is a short peptide , which can ferry molecules across the cell membrane .

对血凝素HA1和HA2连接处的5个碱性氨基酸残基（R-R-R-K-K）进行基因缺失与修饰，消除了病毒基因的毒力相关序列。

The HA gene was modified by the deletion of four basic amino acids of the connecting site between HA1 and HA2 .

CaBP21中疏水性氨基酸（计Gly，不计Trp）约占46%，碱性氨基酸10%，酸性氨基酸与极性氨基酸约44%。CaBP21有较高的Ser、Tyr含量。

CaBP 21 has 46 % of hydrophobic amino acid ( with Gly , without Trp ) content , 10 % of basic amino acid content and 44 % of acidic and polar amino acids .

将该毒株F蛋白裂解位点的112、115和117位碱性氨基酸突变成弱毒株特征的非碱性氨基酸，构建了重组表达质粒pCI-FT。

Recombinant expressing plasmid pCI-FT , was generated by converting multi-basic amino acid sequence of 112 , 115 , 117 of the protease cleavage site of F_ 0 protein , to the non-basic amino acid sequence characteristic of avirulent NDV strain .

1997年，Vives等发现HIV-TAT中一个富含碱性氨基酸、带正电荷的多肽片断与蛋白转导功能密切相关天然存在的CPPs。

In 1977 , Vives et al found in the HIV-TAT , there was a close correlation between an abundant alkaline amino acids , segments of polypeptides carrying positive charge and protein transducing function .

微分脉冲极谱同时测定三种碱性氨基酸的研究

Simultaneous Determination of Basic Amino Acids by Differential Pulse Polarography

碱性氨基酸离子交换平衡特性的研究

Studies on equilibrium characteristics of ion exchange resin for basic amino acids

用732阳离子交换树脂柱提取碱性氨基酸工艺研究

Technological Research of Basic Amino Acid Wereed 732 Cation Positive lon Resin Column

一种主要含碱性氨基酸的简单蛋白质，与核酸一起存在于细胞核内。

A simple protein containing mainly basic amino acids ; present in cell nuclei in association with nucleic acids .

抗菌肽的氨基酸组成中，碱性氨基酸占22.1%，酸性氨基酸占13.9%。

Basic amino acid was 22.1 % and acidic amino acid was 13.9 % in the composition of the AMP .

氨基酸组份分析发现人肝中梭曼水解酶是含碱性氨基酸较多的一种蛋白。

By searching peptide mass fingerprinting in the protein datebase , It showed that the human liver somanase was a novel unknown protein .

它能切割非碱性氨基酸，其底物特异性不同于许多其它前蛋白转化酶。

The specificity of its substrate is different from that of many other proprotein convertases in that it can cleave non-basic amino acids .

结果：牛血小板衍化生长因子含有17种不同量的氨基酸，其中含有相对较多的碱性氨基酸。

Results : Bovine platelet-derived growth factor contained 17 amino acid residues in which the protein contained the strong predominance of basic amino acid .