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/HA重组蛋白HA;Hemagglutinin [Cleav

ed into: Hemagglutinin HA1 chain;Hemagglutinin HA2 chain];FragmentInfluenza A virus Hemagglutinin(HA)(X347S,X348S,X509S,X538S)蛋白
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  • ¥2616
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  • CN
  • CSB-YP356048IBA
  • 2026年01月20日
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    • 详细信息
    • 文献和实验
    • 技术资料
    • 保存条件

      We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃.

    • 保质期

      Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.

    • 英文名

      Recombinant Influenza A virus Hemagglutinin (HA) (X347S,X348S,X509S,X538S), partial

    • 库存

      200

    • 供应商

      武汉华美生物工程有限公司

    • 规格

      20μg


    英文名称:

    Recombinant Influenza A virus Hemagglutinin (HA) (X347S,X348S,X509S,X538S), partial

    品名简称:

    Recombinant Influenza A virus Hemagglutinin protein (X347S,X348S,X509S,X538S), partial

    货号:

    CSB-YP356048IBA

    规格:

    20μg

    价格:

    2616

    LC-MS/Western Blot:

    /

    SDS-PAGE:

    (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    纯度:

    Greater than 90% as determined by SDS-PAGE.

    内毒素:

    Not test

    生物活性:

    /

    基因名:

    HA

    Uniprot No.:

    P03441

    别名:

    HA; Hemagglutinin [Cleaved into: Hemagglutinin HA1 chain; Hemagglutinin HA2 chain]; Fragment

    种属:

    Influenza A virus (strain A/Bangkok/1/1979 H3N2)

    蛋白长度:

    Partial

    来源:

    Yeast

    分子量:

    27.3 kDa

    表达区域:

    330-550aa(X347S,X348S,X509S,X538S)

    氨基酸序列:

    GIFGAIAGFIENGWEGMSSGWYGFRHQNSEGTGQAADLKSTQAAIDQINGKLNRVIEKTNEKFHQIEKEFSEVEGRIQDLEKYVEDTKIDLWSYNAELLVALENQHTIDLTDSEMNKLFEKTRRQLRENAEDMGNGCFKIYHKCDNACIGSIRNGTYDHDVYRDEALNNRFQIKGVELKSGYKDWILWISFAISCFLLCVVLLGFIMVSCQKGNIRCNICI

    蛋白标签:

    N-terminal 6xHis-tagged

    产品提供形式:

    Liquid or Lyophilized powder

    缓冲液:

    If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

    储存条件:

    We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

    保质期:

    The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.

    货期:

    25-35 business days

    注意事项:

    Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.

    功能1:

    Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization of about two third of the virus particles through clathrin-dependent endocytosis and about one third through a clathrin- and caveolin-independent pathway. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.

    功能2:

    Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization either through clathrin-dependent endocytosis or through clathrin- and caveolin-independent pathway. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.

    文献:

    "Conservation and variation in the hemagglutinins of Hong Kong subtype influenza viruses during antigenic drift."Both G.W., Sleigh M.J. J. Virol. 39:663-672(1981)

    研究领域:

    Microbiology

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    相关实验
    • 感染过程中病原体的侵袭力

            与细菌的菌毛、荚膜多糖和细胞壁上的脂肪壁酸有关。细菌在定居过程的各个阶段分泌出不同的黏附素通过宿主细胞上的受体起作用。如CD4+ T细胞表面的受体和人免疫缺陷病毒(HIV)结合后,HIV所分泌的糖蛋白120(gpl20)即与CD4分子结合,跨膜蛋白gp4’的融合部位即进入宿主细胞膜,然后病毒外膜与宿主细胞膜融合,最后病毒核心进入宿主细胞质内。流感病毒的黏附素称为红细胞凝集素(hemagglutininHA)。HA是流感病毒感染所必需的因子,通过宿主蛋白酶的作用可转化为HA1HA

    • 蛋白复性(三)-蛋白质的结构转换

      酶解再向β折叠链的构象转变成无活力的裂解型(cleaved-form, C型)[11]. L型抑制剂可以通过变性和复性方法转变成A型, 然后又慢慢变成L型. 流感病毒血细胞凝集素(influenza hemagglutinin, HA)在pH诱导下的结构变化与细胞膜融合功能紧密相关的. HA在pH 7.0时, 其空间结构是由helix-loop-helix的头状单体结构域组成的三聚体蛋白(HA-N); 可在低pH(pH<5)条件下, 中间Loop区域转化为螺旋结构并与另两段螺旋连接共同形成一股长螺旋

    • 禽流感

      的mRNA,并转译成HA、NA、NP和三种聚合酶(PB1、PB2和PA)。NS和M基因的mRNA进行拼接,每一个产生出两个mRNA,依不同阅读框架进行转译,产生NS1、NS2、M1和M2蛋白。HA和NA在粗面内质网内糖基化,在高尔基体内修饰,然后转运到表面,植入细胞膜中,HA需要宿主细胞蛋白酶将其裂解成HA1HA2,但两者仍以二硫键相连,这种裂解可生成传染性病毒,并以出芽方式从质膜排出细胞。 变异   禽流感病毒抗原性变异的频率很高,且主要以两种方式进行:抗原漂移和抗原转变

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    文献支持
    /HA重组蛋白HA;Hemagglutinin [Cleaved into: Hemagglutinin HA1 chain;Hemagglutinin HA2 chain];FragmentInfluenza A virus Hemagglutinin(HA)(X347S,X348S,X509S,X538S)蛋白
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