Mammalian ribonucleases

Abstract
Parts of the amino acid sequences of horse and dromedary pancreatic ribonuclease were reinvestigated. The sequence of residues 21–25 in horse ribonuclease is Ser‐Asn‐Pro‐Thr‐Tyr or Ser‐Asn‐Ser‐Thr‐Tyr. The asparagine in the latter sequence is glycosylated. Horse ribonuclease possesses four additional amino acid residues at the C‐terminus, like a number of other ribonucleases. Position 39 in horse and dromedary ribonuclease is not deleted but is occupied by tryptophan.