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- Title
The Primary Structure of the Hemoglobins of a Southern Hemisphere Lamprey (Mordada mordax, Cyclostomata).
- Authors
HOMBRADOS, Isabelle; VIDAL, Yolande; RODEWALD, Karin; BRAUNITZER, Gerhard; NEUZIL, Eugène
- Abstract
Mordada mordax is a southern hemisphere lamprey belonging to Mordaciidae, a primitive family of Cyclostomata. Adult erythrocytes contain three monomeric hemoglobins which can be easily separated by cellulose acetate electrophoresis and isolated by ion-exchange chromatography. The W-terminal regions, and the tryptic peptides from each chain were submitted to automated Edman degradation; the alignment of the fragments was obtained by homology with the other Petromyzonoidea hemoglobins hitherto sequenced. Our results confirm the phylogenic distance between lampreys and hag-fish hemoglobins. As was observed for Petromyzon marinus species, two hemoglobins of Mordada mordax are very close, as they differ only at 7 positions.
- Publication
Biological Chemistry, 1991, Vol 372, Issue 1, p49
- ISSN
1431-6730
- Publication type
Article