Identification of a pathogen-binding lectin in salmon serum

K. Vanya Ewart, Stewart C. Johnson, Neil W. Ross

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

A mannose-binding lectin was isolated from the blood serum of Atlantic salmon (Salmo salar). Analysis by sodium dodecyl sulfate-polyacrylamide gel electrophoresis under reducing and non-reducing conditions revealed a multimeric structure composed of 17 000 M(r) subunits. Hexosamine analysis and glycosidase digestion showed that the lectin is not glycosylated and amino acid analysis revealed no unusual compositional features. Using ruthenium red staining, the lectin was shown to bind Ca2+ ions. N-terminal sequencing by Edman degradation gave: H2N-TGAKGAEEGVVPAETRNQXPTGWFQFGS. A database search revealed no similarity to protein sequences deposited to date. Binding experiments using biotinylated lectin revealed that it specifically recognizes and binds to mannose on the surfaces of two salmon pathogens, Vibrio anguillarum and Aeromonas salmonicida, implying an immunological role for this lectin in Atlantic salmon. Copyright (C) 1999 Elsevier Science Inc.

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalComparative Biochemistry and Physiology - C Pharmacology Toxicology and Endocrinology
Volume123
Issue number1
DOIs
Publication statusPublished - May 1999
Externally publishedYes

ASJC Scopus Subject Areas

  • Immunology
  • Pharmacology

PubMed: MeSH publication types

  • Journal Article

Fingerprint

Dive into the research topics of 'Identification of a pathogen-binding lectin in salmon serum'. Together they form a unique fingerprint.

Cite this

Ewart, K. V., Johnson, S. C., & Ross, N. W. (1999). Identification of a pathogen-binding lectin in salmon serum. Comparative Biochemistry and Physiology - C Pharmacology Toxicology and Endocrinology, 123(1), 9-15. https://doi.org/10.1016/S0742-8413(99)00002-X