Leukosialin and CD2 : contrasting structures at the leukocyte surface

<p>Leukosialin is a major cell-surface sialoglycoprotein of unknown function expressed on all leukocytes except B cells.</p> <p>Two clones for mouse leukosialin were isolated from a genomic library and sequencing revealed one of these to be a non-functional pseudogene, whereas the...