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F2555

Sigma-Aldrich

Monoclonal ANTI-FLAG® antibody produced in rabbit

clone SIG1-25, ascites fluid

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Synonym(s):
Anti-ddddk, Anti-dykddddk
NACRES:
NA.32

biological source

rabbit

Quality Level

200

conjugate

unconjugated

antibody form

ascites fluid

antibody product type

primary antibodies

clone

SIG1-25, monoclonal

technique(s)

immunocytochemistry: 1:125-1:250 using transiently transfected cells expressing FLAG (sequence at the N-terminus)-tagged protein fixed with paraformaldehyde/Triton™ X-100
indirect ELISA: suitable
western blot: 1:250-1:500 using extracts of transiently transfected cells expressing FLAG (sequence at the N-terminus)-tagged protein

isotype

IgG

immunogen sequence

DYKDDDDK

shipped in

dry ice

storage temp.

−20°C

Related Categories

General description

Epitope tags provide a method to localize gene products in a variety of cell types, study the topology of proteins and protein complexes, identify associated proteins, and characterize newly identified, low abundance, or poorly immunogenic proteins when protein specific antibodies are not available. Tagging with the FLAG® peptide sequence may be done at the N-terminus, N-terminus preceded by a methionine residue, C-terminus, or at internal positions of the target protein. FLAG may also be placed in association with other tags. The small size of the FLAG tag or sequence and its high hydrophilicity tend to decrease the possibility of interference with the protein expression, proteolytic maturation, antigenicity, and function. The N-terminal FLAG® peptide sequence contains a unique enterokinase cleavage site allowing it to be completely removed from the purified fusion proteins. Cleavage catalyzed by Cu2+ ions of the C-terminal FLAG® peptide from a fusion protein has been reported. A sequence motif with five out of eight amino acid residues identical to the FLAG® peptide is found in both rat and mouse Mg2+ dependent protein b-phosphatase, as well as in the human and bovine enzyme. This rabbit ANTI-FLAG® antibody is produced from the hybridoma SIG1-25. The hybridoma is derived by the fusion of myeloma cells and splenocytes from rabbits immunized with the FLAG® peptide sequence conjugated to KLH.

Specificity

This monoclonal antibody recognizes the FLAG sequence at the N-terminus

Immunogen

FLAG peptide sequence DYKDDDDK

Application

Monoclonal ANTI-FLAG® antibody produced in rabbit has been used in:

  • immunofluorescence
  • western blot analysis
  • immunocytochemistry
  • indirect ELISA

Learn more product details in our FLAG® application portal.

Physical form

Provided as ascites fluid containing 15 mM sodium azide as a preservative.

Legal Information

ANTI-FLAG is a registered trademark of Merck KGaA, Darmstadt, Germany
FLAG is a registered trademark of Merck KGaA, Darmstadt, Germany
Triton is a trademark of The Dow Chemical Company or an affiliated company of Dow

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

常规特殊物品

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T1503
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-
25G
Pack Size/Quantity

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705578-5MG-PW

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1000309185

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Why should I use Product No. F2555, Monoclonal ANTI-FLAG® antibody produced in rabbit?

    The main application for Product F2555 rabbit monoclonal is for immunoblotting after immunoprecipitation with M2, which is a mouse antibody. This enables using a secondary antibody (anti-rabbit) that will not bind the M2 mouse heavy (50 kD) and light chains (25 kD).

  6. Will Product No. F2555, Monoclonal ANTI-FLAG® antibody produced in rabbit - clone SIG1-25, recognize an internal FLAG tag protein?

    F2555 will recognize N-terminal and C-terminal FLAG fusion proteins.

  7. What positive controls can be used for immunoblotting with Product F2555, Monoclonal ANTI-FLAG® antibody produced in rabbit - clone SIG1-25?

    Two of the FLAG-tagged proteins offered by Sigma-Aldrich are the Amino-terminal FLAG-BAP fusion protein (Product No. P7582) and the Carboxy-terminal FLAG-BAP fusion protein (Product No. P7457). Both of these proteins should work with the F2555 rabbit ANTI-FLAG.

  8. Is Product F2555 a monoclonal or polyclonal FLAG® antibody?

    F2555 is a monoclonal antibody, raised in rabbits. [Note: Nearly all of the monoclonal antibodies sold by Sigma-Aldrich are raised in mice.]

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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