Recombinant human NCAM-1/CD56 protein

LQVDIVP SQGEISVGES KFFLCQVAGD AKDKDISWFS PNGEKLTPNQ QRISVVWNDD SSSTLTIYNA NIDDAGIYKC VVTGEDGSES EATVNVKIFQ KLMFKNAPTP QEFREGEDAV IVCDVVSSLP PTIIWKHKGR DVILKKDVRF IVLSNNYLQI RGIKKTDEGT YRCEGRILAR GEINFKDIQV IVNVPPTIQA RQNIVNATAN LGQSVTLVCD AEGFPEPTMS WTKDGEQIEQ EEDDEKYIFS DDSSQLTIKK VDKNDEAEYI CIAENKAGEQ DATIHLKVFA KPKITYVENQ TAMELEEQVT LTCEASGDPI PSITWRTSTR NISSEEKTLD GHMVVRSHAR VSSLTLKSIQ YTDAGEYICT ASNTIGQDSQ SMYLEVQYAP KLQGPVAVYT WEGNQVNITC EVFAYPSATI SWFRDGQLLP SSNYSNIKIY NTPSASYLEV TPDSENDFGN YNCTAVNRIG QESLEFILVQ ADTPSSPSID QVEPYSSTAQ VQFDEPEATG GVPILKYKAE WRAVGEEVWH SKWYDAKEAS MEGIVTIVGL KPETTYAVRL AALNGKGLGE ISAASEFKTQ PVHSPPP

NCAM-1, also known as CD56, is a member of the immunoglobulin superfamily. It specifically binds to neuron-neuron adhesion, neurite fasciculation, outgrowth of neurites, etc. The polysialyation of NCAM-1 reduces its adhesive property and increases its neurite outgrowth promoting features. It has also been shown to be involved in the expansion of T cells and dendritic cells which play an important role in immune surveillance. This protein is preferentially expressed in NK cells and a subset of T lymphocytes that mediate MHC-unrestricted cell-mediated cytotoxicity. High expression of NCAM-1/CD56 differentiates NK cells as having an activated phenotype. CD56(+high) NK cells mediate heightened effector functions in response to IL-12. During hematopoiesis, NCAM-1/CD56 is the prototypic marker of NK cells, also present on subset of CD4+ T cells and CD8+ T cells. In cell adhesion, it contributes to cell-cell adhesion or cell-matrix adhesion during embryonic development. In anatomic pathology, pathologists make use of it immunohistochemistry to recognize certain tumors. Recombinant human NCAM-1, fused to His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.

< 1 EU per 1ug of protein (determined by LAL method)

Liquid. In Phosphate-Buffered Saline (pH 7.4) containing 10% glycerol

Van Acker HH, et al. (2017). Frontiers in Immunology. 8:892.; ; Sanchez-Heras, E. et al. (2006) J Biol Chem. 281:35208-35216.

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