1. Recombinant Proteins
  2. Viral Proteins
  3. Influenza Viruses Proteins
  4. Influenza Hemagglutinin
  5. HA/Hemagglutinin Protein, Influenza B (sf9, His)

HA/Hemagglutinin Protein, Influenza B (sf9, His)

Cat. No.: HY-P73240
Handling Instructions

Hemagglutinin (HA) is a class I viral fusion protein which is 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. HA binds to sialic acid-containing receptors on the cell surface to bring about the attachment of the virus particle to the cell. The attachment of HA 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. HA plays a major role in the determination of host range restriction and virulence. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide and forming fusion pore. Several HA trimers are required to form a competent fusion pore. HA/Hemagglutinin Protein, Influenza B (sf9, His) is the recombinant Virus-derived HA/Hemagglutinin protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of HA/Hemagglutinin Protein, Influenza B (sf9, His) is 556 a.a., with molecular weight of ~60 kDa.

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Description

Hemagglutinin (HA) is a class I viral fusion protein which is 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. HA binds to sialic acid-containing receptors on the cell surface to bring about the attachment of the virus particle to the cell. The attachment of HA 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. HA plays a major role in the determination of host range restriction and virulence. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide and forming fusion pore. Several HA trimers are required to form a competent fusion pore[1][2]. HA/Hemagglutinin Protein, Influenza B (sf9, His) is the recombinant Virus-derived HA/Hemagglutinin protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of HA/Hemagglutinin Protein, Influenza B (sf9, His) is 556 a.a., with molecular weight of ~60 kDa.

Background

Hemagglutinin (HA) is a class I viral fusion protein which is 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. HA binds to sialic acid-containing receptors on the cell surface to bring about the attachment of the virus particle to the cell, and plays a major role in the determination of host range restriction and virulence.

Species

Virus

Source

Sf9 insect cells

Tag

C-His

Accession

ACO05957.1 (M1-A556)

Gene ID

/

Molecular Construction
N-term
HA (M1-A556)
Accession # ACO05957.1
His
C-term
Synonyms
HA; Hemagglutinin
Molecular Weight

Approximately 60 kDa

Purity

Greater than 80% as determined by reducing SDS-PAGE

Endotoxin Level

<1 EU/μg, determined by LAL method.

Documentation

HA/Hemagglutinin Protein, Influenza B (sf9, His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Product Name:
HA/Hemagglutinin Protein, Influenza B (sf9, His)
Cat. No.:
HY-P73240
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