Amino‐Acid Sequence of the Cytochrome c from the Yeast Hansenula anomala

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Abstract
The cytochrome c of the yeast Hansenula anomala has been purified and sequenced. A combination of automatic and manual sequencing methods was used on the whole protein and on fragments obtained by cyanogen bromide cleavage and proteolytic fragmentation. The cytochrome presents an amino‐terminal extension of six residues and the C‐terminal one‐residue deletion typical of plant and fungal cytochrome c. Lysines 72 and 73 are trimethylated, lysine 55 partly monomethylated and partly dimethylated. Positions 73 and 55 have never been found methylated before.