CD56 Antibody [SPM489]

Three isoforms of neural cell adhesion molecule (NCAM) are produced by differential splicing of the RNA transcript from a single gene. The 135kDa isoform is the basic molecule, which is glycosylated or sialylated to produce the mature species. Anti-CD56 recognizes two proteins of the neural cell adhesion molecule, the basic molecule expressed on most neuroectodermally derived tissues and neoplasms (e.g. retinoblastoma, medulloblastomas, astrocytomas, neuroblastomas, and small cell carcinomas) . It is also expressed on some mesodermally derived tumors (rhabdomyosarcoma) . Anti-CD56 plays an important role in the diagnosis of nodal and nasal NK/T-cell lymphomas.

A membrane preparation of small cell lung carcinoma was used as the immunogen for this anti-CD56 antibody. This mAb reacts with an extracellular domain (close to transmembrane) of CD56/NCAM.

1. Staining of formalin-fixed tissues requires boiling tissue sections in 10mM Citrate Buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes. 2. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.