Blood Group Lewis X

Full Name

Blood Group Lewis X

Keywords

alpha-(1,3)-fucosyltransferase; CD15; EC 2.4.1; EC 2.4.1.-; EC 2.4.1.65; ELAM-1 ligand fucosyltransferase; ELFT; FCT3AELAM ligand fucosyltransferase; fucosyltransferase 4 (alpha (1,3) fucosyltransferase, myeloid-specific); Fucosyltransferase 4; Fucosyltransferase IV; FUC-TIV; fucT-IV; FUTIV; Galactoside 3-L-fucosyltransferase; Lewis X; LeX; SSEA1; SSEA-1; stage-specific embryonic antigen 1; Galb1-4(Fuca1-3)GlcNAcb1--R

Background

It is a Lewis blood group related carbohydrate antigen, also known as X-hapten, Lewis X, 3-FAL, 3-fucosyl-N-acetyllactosamine, or CD15. The expression pattern of SSEA-1 antigen is different in humans than in mice. In mice, SSEA-1 is expressed on embryonic stem cells (ES), embryonal carcinoma cells (EC), 8-cell to blastocyst embryos, and a subset of embryonic inner cell mass. The expression on murine ES cells is decreased upon differentiation. In humans, however, SSEA-1 is not found on undifferentiated ES cells, but its expression is upregulated along with differentiation. CD15 is highly expressed on adult human granulocytes. It has been reported that SSEA-1 plays a role in cell adhesion and regulation of cell differentiation.