There is an antibody to sialylated NCAM, called 5A5, available from the
Developmental Studies Hybridoma Bank here in the U.S. However, this
antibody only recognizes the embryonic sialylated NCAM and is thought
to recognize the sialic acid epitope, in part. If you are interested
in that, however, this antibody works very well in immunohistochemistry
and Western blotting.
ravena at cco.caltech.edu