Complete Amino Acid Sequence of a β-Galactoside-Binding Lectin from Human Placenta1

Abstract
The complete amino acid sequence of a β-galactoside-binding lectin from human placenta was determined at protein level. The lectin consists of 134 amino acids and its N-terminal alanine is blocked with acetate. The lectin shows about 50% similarity with chick 14K lectin, which was the first vertebrate β-galactoside-binding lectin completely sequenced. Only 14 residues proved to be different from those of rat lung lectin, the sole mammalian lectin of which the complete sequence has been reported.