Cilli EM, Pigossi FT, Crusca E, Ros U, Martinez D, Lanio ME, Alvarez C, Schreier S. Correlations between differences in amino-terminal sequences and different hemolytic activity of sticholysins.
Toxicon 2007;
50:1201-4. [PMID:
17826814 DOI:
10.1016/j.toxicon.2007.07.013]
[Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Revised: 07/24/2007] [Accepted: 07/25/2007] [Indexed: 10/23/2022]
Abstract
Sticholysins I and II (St I and St II) are cytolysins produced by the sea anemone Stichodactyla helianthus. In spite of their 93% sequence homology, St II is more hemolytic against human erythrocytes than St I. In order to establish the possible causes of this difference, we studied the hemolytic activity of synthetic peptides containing sequences from the N-termini of both proteins. The results demonstrated that the differences in hemolytic activity of the toxins could be ascribed at least partly to differences in their N-termini.
Collapse