By using the non-isotopic single-strand conformation polymorphism (SSC
P) technique to analyse products of the polymerase chain reaction (PCR
), we detected a 561-adenine to cytosine substitution resulting in an
amino acid exchange from serine to arginine at position 128 of the E-s
electin gene. If this amino acid substitution has an effect on the adh
esion of blood cells to the endothelium, the polymorphism could be of
interest with respect to association studies in a number of pathologic
al conditions, such as cardiovascular diseases.