How do you purify HA-tagged protein?
How do you purify HA-tagged proteins? HA-tagged recombinant protein can be affinity purified directly from a cell culture lysate or supernatant. The HA-tagged protein binds to the HA-tag specific monoclonal antibody conjugated on an agarose gel.
How many kDa is an HA tag?
1.1 kDa
The HA tag (YPYDVPDYA-tag) itself has a molecular weight of 1.1 kDa and is a linear epitope derived from amino acids 98-106 of the HA protein. It is used extensively as a general epitope tag in expression vectors (2, 3).
How many ha tags are there?
Yes, we almost always use only one HA tag and visualize it by IF just fine. We use Abcam9110 anti-HA antibody.
How long is an HA tag A?
The hemagglutinin (HA) tag is a 9-amino acid long peptide corresponding to residues 98-106 of the human influenza HA molecule, an ~63kDa surface glycoprotein required for the infectivity of the human virus.
What is an HA tag used for?
The HA (hemagglutinin) tag is derived from the human influenza virus HA protein. It is well characterized and is used extensively as a general antibody epitope tag. HA tag antibodies provide a dependable method for the detection and purification of tagged target proteins without a protein-specific antibody or probe.
Can Ha tags be internal?
THE HA tag antibody can detect HA tags in internal, C-terminal, or N-terminal recombinant proteins. It is derived from HA molecule corresponding to amino acids 98-106.
Why is HA tag used?
Why HA tag is used?
How do you elute a HA tag?
Use 4 X 1 column volumes of 1 mg/ml HA peptide solution to elute HA-tagged proteins. Elution yields will increase by incubating the peptide on the column for 10-15 minutes at 30-37ºC for each elution fraction. Reconstitute to 1 mg/ml using TBS or distilled water.
Is HA tag immunogenic?
The segment is chosen due to its high immunogenicity and immuno inaccessibility in the native hemagglutinin conformation, as indicated in the original publication [2]. Thus, HA hemagglutinin tag antibody is one of most commonly used antibodies in protein expression and cell biology studies.
What are peptide tags?
Protein tags are peptide sequences genetically grafted onto a recombinant protein. Tags are attached to proteins for various purposes. They can be added to either end of the target protein, so they are either C-terminus or N-terminus specific or are both C-terminus and N-terminus specific.
What is anti HA antibody?
Anti-HA is produced in rabbit using a synthetic peptide corresponding to amino acid residues of the human Influenza hemagglutinin (HA), conjugated to KLH. The antibody is affinity-purified on the immobilized immunizing peptide. Anti-HA antibody is specific for N- or C-terminal HA-tagged fusion proteins.