Merlin (also called Neurofibromin 2 or schwannomin) is a cytoskeletal protein. In humans, it is a tumor suppressor protein involved in neurofibromatosis type II. Sequence data reveal its similarity to the ERM protein family. The name "merlin" is an acronym for "Moesin-Ezrin-Radixin-Like Protein". Merlin is a membrane-cytoskeleton scaffolding protein, i.e. linking actin filaments to cell membrane or membrane glycoproteins. Human merlin is predominantly found in nervous tissue, but also in several other fetal tissues, and is mainly located in adherens junctions. Its tumor suppressor properties are probably associated with contact-mediated growth inhibition. Drosophila merlin is expressed in embryonic hindgut, salivary glands, and imaginal discs, and has apparently a slightly different role than in vertebrates. The phosphorylation of serine 518 is known to alter the functional state of merlin. The signaling pathway of merlin is proposed to include several salient cell growth controlling molecules, including eIF3c, CD44, protein kinase A, and p21 activated kinases. Mutations of the NF2 gene cause a human autosomal dominant disease called neurofibromatosis type 2. It is characterized by the development of tumors of the nervous system, most commonly of bilateral vestibular schwannomas (also called acoustic neuromas). NF2 belongs to the tumor suppressor group of genes.
Background References
1. Mota M et al. Merlin regulates signaling events at the nexus of development and cancer. Cell Commun Signal. 2020 Apr
2. Zhou Z et al. Merlin functions as a critical regulator in Staphylococcus aureus-induced osteomyelitis. J Cell Physiol. 2022 Jan
Western blot analysis of Merlin on different lysates with Rabbit anti-Merlin antibody (HA721320) at 1/2,000 dilution.
Lane 1: HCT 116-si NT cell lysate Lane 2: HCT 116-si Merlin cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 70 kDa Observed band size: 70 kDa
Exposure time: 30 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721320) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Western blot analysis of Merlin on different lysates with Rabbit anti-Merlin antibody (HA721320) at 1/5,000 dilution.
Lane 1: HeLa (Human cervical adenocarcinoma cell) cell lysate Lane 2: Mouse brain tissue lysate
Lysates/proteins at 25 µg/Lane. Exposure time: 59 Seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature Primary antibody: HA721320, 1/5,000 in primary antibody dilution buffer (K1803), overnight at 4 ℃ Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 70 kDa Observed band size: 70 kDa
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