Revision 3

#12698Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, W-S, IP, IF-IC, FC-FP, ChIP

REACTIVITY:

All

SENSITIVITY:

Transfected Only

MW (kDa):

Source/Isotype:

Rabbit IgG

Product Information

Product Usage Information

For optimal ChIP results, use 5 μl of antibody and 10 μg of chromatin (approximately 4 x 106 cells) per IP. This antibody has been validated using SimpleChIP® Enzymatic Chromatin IP Kits.

Application Dilution
Western Blotting 1:1000
Simple Western™ 1:50 - 1:250
Immunoprecipitation 1:50
Immunofluorescence (Immunocytochemistry) 1:400
Flow Cytometry (Fixed/Permeabilized) 1:800
Chromatin IP 1:100

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

His-Tag (D3I1O) XP® Rabbit mAb 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.

Species Reactivity:

All Species Expected

Source / Purification

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

Background

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.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v nonfat dry milk, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting W-S: Simple Western™ IP: Immunoprecipitation IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized) ChIP: Chromatin IP

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Alexa Fluor is a registered trademark of Life Technologies Corporation.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 3
#12698

His-Tag (D3I1O) XP® Rabbit mAb

Western Blotting Image 1: His-Tag (D3I1O) XP® Rabbit mAb Expand Image
Western blot analysis of extracts from 293T cells, untransfected or transfected with 6xHis-Tag fusion protein 1 or 6xHis-Tag fusion protein 2, using His-Tag (D3I1O) XP® Rabbit mAb.
Western Blotting Image 1: His-Tag (D3I1O) XP® Rabbit mAb Expand Image

Simple Western™ analysis of lysates (0.1 mg/mL) from COS-7 mAkt1-Myc/His Transfection. cells using His-Tag (D3I1O) XP® Rabbit mAb #12698. The virtual lane view (left) shows the target band (as indicated) at 1:50 and 1:250 dilutions of primary antibody. The corresponding electropherogram view (right) plots chemiluminescence by molecular weight along the capillary at 1:50 (blue line) and 1:250 (green line) dilutions of primary antibody. This experiment was performed under reducing conditions on the Jess Simple Western instrument from ProteinSimple, a BioTechne brand, using the 12-230 kDa separation module.

Immunoprecipitation Image 1: His-Tag (D3I1O) XP® Rabbit mAb Expand Image
Immunoprecipitation of His-Tag protein from transfected 293T cells using Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (lane 2) or His-Tag (D3I1O) XP® Rabbit mAb (lane 3). Lane 1 is 10% input. Western blot analysis was performed using His-Tag (D3I1O) XP® Rabbit mAb.
Immunofluorescence Image 1: His-Tag (D3I1O) XP® Rabbit mAb Expand Image
Confocal immunofluorescent analysis of 293T cells transfected with a His-Tagged protein using His-Tag (D3I1O) XP® Rabbit mAb (green). Actin filaments were labeled with DY-554 phalloidin (red). Blue pseudocolor= DRAQ5® #4084 (fluorescent DNA dye).
Flow Cytometry Image 1: His-Tag (D3I1O) XP® Rabbit mAb Expand Image
Flow cytometric analysis of 293T cells, untransfected (blue) or transfected with a His-myc-Akt plasmid (green), using His-Tag (D3I1O) XP® Rabbit mAb. Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 647 Conjugate) #4414 was used as a secondary antibody.
Chromatin Immunoprecipitation Image 1: His-Tag (D3I1O) XP® Rabbit mAb Expand Image
293T cells were either untransfected (left panel) or transfected with an His-tagged human Stat3 construct (right panel), then treated with Human Interleukin-6 (hIL-6) #8904 (100 ng/ml, 30 min). Chromatin immunoprecipitations were performed with cross-linked chromatin from cells and His-Tag (D3I1O) XP® Rabbit mAb, Stat3α (D1A5) XP® Rabbit mAb #8768, or Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using SimpleChIP® Human c-Fos Promoter Primers #4663, human IRF-1 promoter primers, and SimpleChIP® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.