Cat. # | Size | Qty. | Price |
---|---|---|---|
9718T | 20 µl |
|
|
9718S | 100 µl |
|
REACTIVITY | H M R Mk |
SENSITIVITY | Endogenous |
MW (kDa) | 15 |
Source/Isotype | Rabbit IgG |
Product Information
Application | Dilution |
---|---|
Western Blotting | 1:1000 |
IHC Leica Bond | 1:50 - 1:200 |
Immunohistochemistry (Paraffin) | 1:240 - 1:960 |
Immunofluorescence (Immunocytochemistry) | 1:200 - 1:800 |
Flow Cytometry (Fixed/Permeabilized) | 1:100 - 1:400 |
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.
NOTE: Please refer to primary antibody product webpage for recommended antibody dilution.
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
Load 20 µl onto SDS-PAGE gel (10 cm x 10 cm).
NOTE: Loading of prestained molecular weight markers (#59329, 10 µl/lane) to verify electrotransfer and biotinylated protein ladder (#7727, 10 µl/lane) to determine molecular weights are recommended.
NOTE: Volumes are for 10 cm x 10 cm (100 cm2) of membrane; for different sized membranes, adjust volumes accordingly.
* Avoid repeated exposure to skin.
posted June 2005
revised June 2020
Protocol Id: 263
NOTE: Please see product datasheet or product webpage for appropriate antibody dilution^.
Step | Reagents | Time/Temperature | |
---|---|---|---|
1 | Dewax | BOND™ Dewax Solution, 100% Alcohol, BOND™ Wash Solution | Pre-programmed Leica® BOND™ |
2 | Antigen Retrieval | BOND™ Epitope Retrieval ER2 Solution | 20 min., 100˚C | Protocol: HIER 20 min with ER2 |
3 | Peroxide Block | Refine Detection Kit Peroxide Block* | 5 min. |
WASH | BOND™ Wash Solution | 3x 0:00 min. | |
4 | Protein Block (optional) | #5425 NGS or #15019 Animal-Free Blocking Solution | 20 min. |
5 | Primary Antibody^ | Dilute in 1X PBST (9809) | 30 min. |
WASH | BOND™ Wash Solution | 3x 2:00 min. | |
NA | Post Primary Mouse Linker | Refine Detection Kit Post Primary* | Not Applied |
6 | Secondary Detection | Refine Detection Kit Polymer* | 10 min. |
WASH | BOND™ Wash Solution/Deionized Water | Custom (see below) | |
7a | Visualization | Refine Detection Kit Mixed DAB Refine* | 0:00 min. |
7b | Visualization | Refine Detection Kit Mixed DAB Refine* | 10 min. |
WASH | Deionized Water | 3x 0:00 min. | |
8 | Counterstain | Refine Detection Kit Hematoxylin* | 5 min. |
WASH | Deionized Water | 0:00 min. | |
WASH | BOND™ Wash Solution | 0:00 min. | |
WASH | Deionized Water | 0:00 min. | |
9 | Dehydration (Offline): | ||
Incubate sections in 95% ethanol two times for 10 seconds each. | |||
Repeat in 100% ethanol, incubating sections two times for 10 seconds each. | |||
Repeat in xylene, incubating sections two times for 10 seconds each. | |||
10 | Mount sections with coverslips and #14177 SignalStain® Mounting Medium | ||
Optional Custom wash: | BOND™ Wash Solution | 2:00 | |
BOND™ Wash Solution | Dispenser Type: OPEN 0:00 | ||
BOND™ Wash Solution | 2:00 | ||
BOND™ Wash Solution | Dispenser Type: OPEN 0:00 | ||
BOND™ Wash Solution | 0:00 | ||
Deionized Water | 0:00 |
*Reagent included in BOND™ Polymer Refine Detection Kit (Catalog No: DS9800)
LEICA® is a registered trademark of Leica Microsystems IR GmbH.
BOND™ is a trademark of Leica Biosystems Melbourne Pty. Ltd. No affiliation or sponsorship between CST and Leica Microsystems IR GmbH or Leica Biosystems Melbourne Pty. Ltd is implied.
posted November 2023
Protocol Id: 3124
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
NOTE: Do not allow slides to dry at any time during this procedure.
For Citrate: Heat slides in a microwave submersed in 1X citrate unmasking solution until boiling is initiated; follow with 15 min at a sub-boiling temperature (95°-98°C). Cool slides on bench top for 30 min.
RECOMMENDED DETECTION REAGENTS |
SignalStain® Boost IHC Detection Reagent (HRP, Rabbit) #8114 | SignalStain® Boost IHC Detection Reagent (AP, Rabbit) #18653 |
---|---|---|
COMPATIBLE CHROMOGEN |
SignalStain® DAB Substrate Kit #8059 | SignalStain® Vibrant Red Alkaline Phosphatase Substrate Kit #76713 |
SignalStain® Vivid Purple Peroxidase Substrate Kit #96632 | SignalStain® Ultra Blue Alkaline Phosphatase Substrate Kit #12824 | |
SignalStain® Deep Black Peroxidase Substrate Kit #72986 | ||
SignalStain® Radiant Yellow Peroxidase Substrate Kit #69644 |
NOTE: Use of detection reagents other than those specified in this protocol may require further optimization of the primary antibody to account for the different sensitivities of the detection reagents.
posted October 2023
Protocol Id: 3104
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
Note: Cells should be grown, treated, fixed and stained directly in multi-well plates, chamber slides or on coverslips.
NOTE: Formaldehyde is toxic, use only in a fume hood.
NOTE: All subsequent incubations should be carried out at room temperature unless otherwise noted in a humid light-tight box or covered dish/plate to prevent drying and fluorochrome fading.
posted September 2016
Protocol Id: 1204
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
NOTE: When including fluorescent cellular dyes in your experiment (including viability dyes, DNA dyes, etc.), please refer to the dye product page for the recommended protocol.
NOTE: Adherent cells or tissue should be dissociated and in single-cell suspension prior to fixation.
NOTE: Optimal centrifugation conditions will vary depending upon cell type and reagent volume. Generally, 150-300g for 1-5 minutes will be sufficient to pellet the cells.
NOTE: If using whole blood, lyse red blood cells and wash by centrifugation prior to fixation.
NOTE: Antibodies targeting CD markers or other extracellular proteins may be added prior to fixation if the epitope is disrupted by formaldehyde and/or methanol. The antibodies will remain bound to the target of interest during the fixation and permeabilization process. However, note that some fluorophores (including PE and APC) are damaged by methanol and thus should not be added prior to permeabilization. Conduct a small-scale experiment if you are unsure.
NOTE: Count cells using a hemocytometer or alternative method.
posted June 2023
Protocol Id: 2985
Human, Mouse, Rat, Monkey
Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser139 of human H2A.X.
Histone H2A.X is a variant histone that represents approximately 10% of the total H2A histone proteins in normal human fibroblasts (1). H2A.X is required for checkpoint-mediated cell cycle arrest and DNA repair following double-stranded DNA breaks (1). DNA damage, caused by ionizing radiation, UV-light, or radiomimetic agents, results in rapid phosphorylation of H2A.X at Ser139 by PI3K-like kinases, including ATM, ATR, and DNA-PK (2,3). Within minutes following DNA damage, H2A.X is phosphorylated at Ser139 at sites of DNA damage (4). This very early event in the DNA-damage response is required for recruitment of a multitude of DNA-damage response proteins, including MDC1, NBS1, RAD50, MRE11, 53BP1, and BRCA1 (1). In addition to its role in DNA-damage repair, H2A.X is required for DNA fragmentation during apoptosis and is phosphorylated by various kinases in response to apoptotic signals. H2A.X is phosphorylated at Ser139 by DNA-PK in response to cell death receptor activation, c-Jun N-terminal Kinase (JNK1) in response to UV-A irradiation, and p38 MAPK in response to serum starvation (5-8). H2A.X is constitutively phosphorylated on Tyr142 in undamaged cells by WSTF (Williams-Beuren syndrome transcription factor) (9,10). Upon DNA damage, and concurrent with phosphorylation of Ser139, Tyr142 is dephosphorylated at sites of DNA damage by recruited EYA1 and EYA3 phosphatases (9). While phosphorylation at Ser139 facilitates the recruitment of DNA repair proteins and apoptotic proteins to sites of DNA damage, phosphorylation at Tyr142 appears to determine which set of proteins are recruited. Phosphorylation of H2A.X at Tyr142 inhibits the recruitment of DNA repair proteins and promotes binding of pro-apoptotic factors such as JNK1 (9). Mouse embryonic fibroblasts expressing only mutant H2A.X Y142F, which favors recruitment of DNA repair proteins over apoptotic proteins, show a reduced apoptotic response to ionizing radiation (9). Thus, it appears that the balance of H2A.X Tyr142 phosphorylation and dephosphorylation provides a switch mechanism to determine cell fate after DNA damage.
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