The gamma chain of the lamb.

The sequence of the gamma-chain of lamb (Finn-Marino) haemoglobin has been investigated. Total amino acid analysis and analysis of the products of cyanylation, together with analysis of tryptic, peptic, thermolysin and Staphylococcus aureus (strain V8) protease peptides and with dansyl-Edman degradation enabled almost the entire sequence to be elucidated. The differences between this sequence and that of the gamma-chains of man, cattle, goat and Rambouillet sheep are discussed.