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38725
CD133 (A8N6N) Mouse mAb (Flow Specific) (Alexa Fluor® 488 Conjugate)
Antibody Conjugates

CD133 (A8N6N) Mouse mAb (Flow Specific) (Alexa Fluor® 488 Conjugate) #38725

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Flow cytometric analysis of Ramos cells (blue) and WERI-Rb-1 cells (green) using CD133 (A8N6N) Mouse mAb (Flow Specific) (Alexa Fluor® 488 Conjugate) (solid lines) or a concentration-matched Mouse (MOPC-21) mAb IgG1 Isotype Control (Alexa Fluor® 488 Conjugate) #4878 (dashed lines).

To Purchase # 38725S
Product # Size Price
38725S
100 µl  (50 tests) $ 305

Supporting Data

REACTIVITY H
SENSITIVITY Endogenous
MW (kDa)
Isotype Mouse IgG3

Product Description

This Cell Signaling Technology antibody is conjugated to Alexa Fluor® 488 fluorescent dye and tested in-house for direct flow cytometric analysis in human cells. This antibody is expected to exhibit the same species cross-reactivity as the unconjugated CD133 (A8N6N) Mouse mAb (Flow Specific) #60577.

Product Usage Information

Application Dilutions
Flow Cytometry 1:50

Storage:

Supplied in PBS (pH 7.2), less than 0.1% sodium azide and 2 mg/ml BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.

Protocol

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Flow Cytometry, Live Cell Protocol for Directly Conjugated Antibodies

A. Solutions and Reagents

NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.

  1. 1X Phosphate Buffered Saline (PBS): To prepare 1 L 1X PBS: add 100 ml 10X PBS (#12528) to 900 ml water, mix.
  2. Antibody Dilution Buffer: Purchase ready-to-use Flow Cytometry Antibody Dilution Buffer (#13616), or prepare a 0.5% BSA PBS buffer by dissolving 0.5 g Bovine Serum Albumin (BSA) (#9998) in 100 ml 1X PBS. Store at 4°C.

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. Visit www.cellsignal.com/flowdyes for a listing of cellular dyes validated for use in flow cytometry.

B. Immunostaining

NOTE: Count cells using a hemocytometer or alternative method.

NOTE: If using whole blood, lyse red blood cells and wash by centrifugation prior to Immunostaining.

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.

  1. Aliquot desired number of cells into tubes or wells. (Generally, 5x105 to 1x106 cells per assay.)
  2. Pellet cells by centrifugation and remove supernatant.
  3. Resuspend cells in 100 µl of diluted primary antibody, prepared in Antibody Dilution Buffer at a recommended dilution or as determined via titration.
  4. Incubate for 30 min to 1 hr on ice. Protect from light.
  5. Wash by centrifugation in Antibody Dilution Buffer. Discard supernatant. Repeat.
  6. Resuspend cells in 200-500 µl of Antibody Dilution Buffer and analyze on flow cytometer.

posted June 2017

revised August 2019

Protocol Id: 1504

Specificity / Sensitivity

CD133 (A8N6N) Mouse mAb (Flow Specific) (Alexa Fluor® 488 Conjugate) recognizes endogenous levels of total CD133 protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with cells overexpressing human CD133 protein.

Background

CD133, also known as Prominin, was first described as a cell surface marker recognized by monoclonal antibody AC133 on putative hematopoietic stem cells (1). Subsequent cDNA cloning indicated that CD133 is a five-transmembrane protein with a predicated molecular weight of 97 kDa. Due to heavy glycosylation, its apparent molecular weight is 130 kDa as determined by SDS-PAGE analysis (2). Besides blood stem cells, CD133 is expressed on and used to isolate other stem cells, including cancer stem cells (3-7). A deletion mutation in CD133 produces aberrant protein localization and may result in retinal degeneration in humans (8).

  1. Yin, A.H. et al. (1997) Blood 90, 5002-12.
  2. Miraglia, S. et al. (1997) Blood 90, 5013-21.
  3. Handgretinger, R. et al. (2003) Ann N Y Acad Sci 996, 141-51.
  4. Monzani, E. et al. (2007) Eur J Cancer 43, 935-46.
  5. O'Brien, C.A. et al. (2007) Nature 445, 106-10.
  6. Ricci-Vitiani, L. et al. (2007) Nature 445, 111-5.
  7. Singh, S.K. et al. (2004) Nature 432, 396-401.
  8. Maw, M.A. et al. (2000) Hum. Mol. Genet. 9, 27-34.

Pathways & Proteins

Explore pathways + proteins related to this product.

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

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Alexa Fluor is a registered trademark of Life Technologies Corporation.
The Alexa Fluor dye conjugates in this product are sold under license from Life Technologies Corporation, for research use only excluding use in combination with DNA microarrays and high content screening (HCS).
This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@lifetech.com.