Cell Signaling Technology

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His-Tag (D3I1O) XP® Rabbit mAb (Biotinylated) #15070

No. Size Price
15070S 100 µl ( 10 western blots ) ¥4,264.00 现货查询 购买询价
15070 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 All Species Expected, Transfected Only Rabbit IgG

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting,

Specificity / Sensitivity

His-Tag (D3I1O) XP® Rabbit mAb (Biotinylated) recognizes recombinant proteins containing the 6xHis epitope tag. The antibody recognizes the 6xHis-tag fused to either the amino or carboxy terminus of targeted proteins in transfected cells.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues of the 6xHis epitope tag.


This Cell Signaling Technology antibody is conjugated to biotin under optimal conditions. The biotinylated antibody is expected to exhibit the same species cross-reactivity as the unconjugated His-Tag (D3I1O) XP® Rabbit mAb #12698.

Western Blotting

Western Blotting

Western blot analysis of extracts from COS-7 cells, untransfected (-) or transfected with a construct expressing a 6xHis-Tag fusion protein (+), using His-Tag (D3I1O) XP® Rabbit mAb (Biotinylated).


Epitope tags are useful for the labeling and detection of proteins using immunoblotting, immunoprecipitation, and immunostaining techniques. Because of their small size, they are unlikely to affect the tagged protein’s biochemical properties.

A variety of plasmids contain DNA that encodes an amino-terminal tag consisting of six histidine (6xHis) residues followed by an extended multiple cloning site. The 6xHis tag on the expressed recombinant proteins allows for efficient coupling to Ni2+ affinity resins and purification by single step chromatography (1).

As is the case with other protein tag systems (2), this polyhistidine tag can often be cleaved at sites recognized by proteases such as thrombin and enterokinases to isolate the protein of interest (1).

  1. Kroll, D.J. et al. (1993) DNA Cell Biol 12, 441-53.
  2. di Guan, C. et al. (1988) Gene 67, 21-30.

Application References

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Companion Products

For Research Use Only. Not For Use In Diagnostic Procedures.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

XP is a registered trademark of Cell Signaling Technology, Inc.

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Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.

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