| 1. | Characterization of hemagglutinin gene of influenza a virus subtype h9n
毒株基因组特性的研究
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| 2. | Analysis of hemagglutinin genes of two avian influenza virus isolates
2亚型流感病毒的发现及感染人调查
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| 3. | Cloning and sequecing analyzing of the hemagglutinin gene from influenza a h3n
基因真核表达载体的构建及序列分析
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| 4. | The difference of the hemagglutinin of h9n2 chicken influenza viruses isolated in china and korea
2病毒血凝素分子特性的区别
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| 5. | Based on the published aiv h7 ha1 cdna sequences , a pair of primers were designed which were specific to hemagglutinin ( ha1 ) genes of h7 subtypes
根据已发表的aivh7ha基因序列，设计了针对ha1基因的一对引物，经rt - pcr方法扩增出了约1 . 0kb的基因片段。
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| 6. | The a / pr / 8 / 34 ( hln1 ) adapted to mouse lung was propagated in allantoic cavity of 9 - day - old embryonated chicken eggs and titered by hemagglutinin test , and the tilers was 1 : 320
用9日龄鸡胚培养人流感病毒的鼠肺适应株户jp侧8 / 34 ( hini ) ，通过血凝实验测得病毒滴度为1 : 320 。
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| 7. | Abstract : this paper describes the role of the sialylsugar chains on cell surface in the attacking process of the influenza virus , and also binding specificity of hemagglutinin of the influenza virus to the sialylsugar chains
文摘:介绍了细胞外表面上含唾液酸的糖链在流感病毒侵袭细胞中的作用以及糖链与流感病毒表面糖蛋白-血凝素结合的特异性。
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| 8. | Hemagglutinin ( ha ) is proved to be the main immune pathogen of chicken accounting for inducing of antibody against ai and main target antigen causing humoral immunity in chicken . it plays an important role in anti - infection immunity
研究表明其ha基因是诱导机体产生抗体的主要免疫原，是机体对禽流感病毒产生体液免疫的主要靶抗原，在机体的抗感染免疫中起重要作用。
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| 9. | In this study five recombinant plasmids containing hn ( hemagglutinin - neuraminidase ) genes of ndv ( newcastle disease virus ) were constructed , hn genes were amplified by reverse transcriptase - polymerase chain reaction ( rt - pcr ) and were inserted directly into eukaryotic expression plasmid pcdna3
应用反转录-聚合酶链反应( rt - pcr )获得两株新城疫病毒( ndv )血凝素-神经氨酸酶( hn )基因cdna ，然后定向插入真核表达质粒pcdna3中，构建了含hn基因的重组质粒。
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| 10. | Hemagglutinins inhibition ( hi ) testes showed that there were obvious variations among the isolates from different geographical areas . this result explained why the protection rates of current vaccine were different around the country . dna sequence analysis of h9 hemagglutinin genes showed that these viruses were closely related and possibly came from one source
且在同一地域内，不同的异变体之间的差异较小，随着时间的推移，其变异并不明显；但在不同的区域内分离的毒株之间变异较为突出，这表明中国大陆h9n2亚型禽流感病毒不同分离株抗原性是与地域的改变而发生较为明显的变异。
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