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Recombinant H5N1(A/Indonesia/5/2005) Hemagglutinin Protein, His-tagged

Cat.No. : HA-399H
Product Overview : Recombinant H5N1(A/Indonesia/5/2005) hemagglutinin (AHJ09886.1)(Met1-Ile519, with mutations Tyr 107 Phe, Ser 341 Thr, and aa 342-345 deleted), termed as HA, was expressed with a polyhistidine tag at the C-terminus.
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Description : The influenza viral Hemagglutinin (HA) protein is a homo trimer with a receptor binding p centigradeket on the globular head of each monomer.HA has at least 18 different antigens. These subtypes are named H1 through H18.HA has two functions. Firstly, it allows the recognition of target vertebrate cells, accomplished through the binding to these cells' sialic acid-containing receptors. Secondly, once bound it facilitates the entry of the viral genome into the target cells by causing the fusion of host endosomal membrane with the viral membrane.The influenza virus Hemagglutinin (HA) protein is translated in cells as a single protein, HA0, or hemagglutinin precursor protein. For viral activation, hemagglutinin precursor protein (HA0) must be cleaved by a trypsin-like serine endoprotease at a specific site, normally coded for by a single basic amino acid (usually arginine) between the HA1 and HA2 domains of the protein. After cleavage, the two disulfide-bonded protein domains produce the mature form of the protein subunits as a prerequisite for the conformational change necessary for fusion and hence viral infectivity.
Source : Baculovirus-Insect Cells
Species : H5N1
Tag : His
Predicted N Terminal : Asp 17
Form : Lyophilized from sterile 20 mM Tris, 500 mM NaCl,pH 7.4. Normally 5 %- 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Molecular Mass : The recombinant hemagglutinin of Influenza A virus consists of 510 amino acids and predicts a molecular mass of 58.2 kDa
Protein length : Met1-Ile519
Endotoxin : < 1.0 EU per μg protein as determined by the LAL method.
Purity : > 85 % as determined by SDS-PAGE.
Storage : Samples are stable for up to twelve months from date of receipt at-70 centigrade. Store it under sterile conditions at-20 centigrade to-80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4ºC before opening to recover the entire contents.
Official Symbol : HA
Synonyms : hemagglutinin;HA
Official Symbol : HA
Synonyms : hemagglutinin;HA

For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.

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How about the structural characteristics of HA protein? 09/14/2019

HA protein is a glycoprotein that contains thousands of carbohydrates and an amino acid chain consisting of 566 amino acid residues. The structure of HA protein has triple symmetry, consisting of three monomers that form a spiral.

Will genetic variants in HA proteins affect vaccine development? 06/06/2019

Genetic variants in the HA protein may affect the development and production of influenza vaccines. Because HA protein is an important component of influenza viruses, different subtypes or variants of HA protein may require different vaccines to prepare.

Why is hemagglutinin protein related to viral replication? 05/17/2019

This protein is one of the key factors in the replication process of influenza viruses. When a virus infects a host cell, the receptor-binding region of the HA protein binds to the receptor on the cell surface, allowing the virus to invade the host cell and replicate.

What are the subtypes of HA protein? 04/01/2019

There are currently 18 known HA subtypes of influenza viruses, H1-H18. Among them, the H1, H2, H3, H5, H7, and H9 subtypes are associated with human viruses, while other subtypes are generally associated with animal viruses.

What are the physiological functions of HA protein? 03/07/2019

The main physiological function of HA protein is to bind to host cells and mediate the entry of influenza viruses into host cells. It contains specific regions that bind glycoprotein receptors that allow the influenza virus to adhere to them. This is an important link that allows the virus to stably bind and enter the cell.

What laboratory techniques are HA proteins used in? 01/07/2019

HA protein is widely used in viral research and drug development. Researchers can use HA proteins to test drugs such as influenza virus activators, antibodies and vaccines, and HA proteins are also widely used to develop novel immunoassays and treatments.

Customer Reviews (2)

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Reviews
06/01/2021

    The transport process does not affect the protein quality, and the stability is good.

    11/27/2019

      Higher solubility makes it easy to prepare the desired concentration.

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