1. Department of Fisheries and Oceans Canada, Science, Oceans and Environment Branch, St John's, PO Box 5667, Newfoundland A1C 5X1, Canada and Department of Biochemistry, Memorial University of Newfoundland, St John's, Newfoundland A1C 5S7, Canada
2. Protein Analysis, Caprion Pharmaceuticals, 7150 Alexander Fleming, Montreal, Quebec H4S 2C8, Canada
3. Department of Fisheries and Oceans Canada, Science, Oceans and Environment Branch, St John's, PO Box 5667, Newfoundland A1C 5X1, Canada
4. Department of Biochemistry, Memorial University of Newfoundland. St John's, Newfoundland A1C 5S7, Canada