Revision 1

#12888Store at -20C

Cell Signaling Technology

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

Support: 877-678-TECH (8324)

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For Research Use Only. Not for Use in Diagnostic Procedures.



H M R Hm Mk



MW (kDa):



Rabbit IgG

UniProt ID:


Entrez-Gene Id:


Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:50
Immunofluorescence (Immunocytochemistry) 1:200


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

Merlin (D3S3W) Rabbit mAb recognizes endogenous levels of total merlin protein.

Species Reactivity:

Human, Mouse, Rat, Hamster, Monkey

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Gln470 of human merlin protein.


Neurofibromatosis 2 (NF2) is an autosomal dominant, inherited disorder characterized by the occurrence of vestibular schwannomas, meningiomas, and other nervous system tumors. Both the familial tumors of NF2 and equivalent sporadic tumors found in the general population are caused by inactivation of the NF2 tumor suppressor gene. Merlin (moesin, ezrin, and radixin-like protein) is the NF2 gene product, displaying striking similarity to ezrin, radixin, and moesin (ERM) proteins. Regulation of merlin (also called schwannomin) and ERM proteins involves intramolecular and intermolecular head-to-tail associations between family members (1). Merlin and ERM proteins act as linkers between the plasma membrane and the cytoskeleton, affecting cell morphology, polarity, and signal transduction (2). Merlin is phosphorylated by the Rac/Cdc42 effector p21-activated kinase (PAK) at Ser518, negatively regulating Rac (3,4).

  1. Ramesh, V. (2004) Nat. Rev. Neurosci. 5, 462-70.
  2. Bretscher, A. et al. (2002) Nat. Rev. Mol. Cell Biol. 3, 586-99.
  3. Xiao, G. H. et al. (2002) J. Biol. Chem. 277, 883-6.
  4. Kissil, J. L. et al. (2003) Mol. Cell 12, 841-9.

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 BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation IF-IC: Immunofluorescence (Immunocytochemistry)

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.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit 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 1

Merlin (D3S3W) Rabbit mAb

Western Blotting Image 1: Merlin (D3S3W) Rabbit mAb Expand Image
Western blot analysis of extracts from PC-3 cells, and both wild type and Nf2 (-/-) mouse embryonic fibroblasts (MEFs) using Merlin (D3S3W) Rabbit mAb (upper), Ezrin/Radixin/Moesin Antibody #3142 (middle), and β-Actin (D6A8) Rabbit mAb #8457 (lower). (MEF wt and MEF Nf2 (-/-) cells were kindly provided by Dr. Andrea McClatchey and Dr. Andrew Gladden, MGH Cancer Center and Harvard Medical School, Charlestown MA).
Immunoprecipitation Image 1: Merlin (D3S3W) Rabbit mAb Expand Image
Immunoprecipitation of merlin from mouse embryonic fibroblasts (MEF) cell extracts, using Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (lane 2) or Merlin (D3S3W) Rabbit mAb (lane 3). Lane 1 is 10% input. Western blot analysis was performed using Merlin (D3S3W) Rabbit mAb.
Immunofluorescence Image 1: Merlin (D3S3W) Rabbit mAb Expand Image
Confocal immunofluorescent analysis of PC-3 cells using Merlin (D3S3W) Rabbit mAb (green). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).