Initial peptidomic profiling of Brazilian sea urchins: Arbacia lixula, Lytechinus variegatus and Echinometra lucunter
J. venom. anim. toxins incl. trop. dis
;
22: 17, 2016. tab, graf
Article
in English
| LILACS, VETINDEX
| ID: biblio-954783
ABSTRACT
Background Sea urchins can be found throughout the Brazilian coast and are reported to be one of the major causes of marine accidents on the shoreline. Although not lethal, these accidents are reported to be extremely painful. In order to understand the toxinology of the Brazilian urchins, a peptidomic approach was performed aiming to characterize the naturally occurring peptides in both the coelomic fluid and the spine. Methods Animals were collected without gender distinction and samples of the coelomic fluid and spines extracted were analyzed by RP-HPLC and mass spectrometry for peptide de novo sequencing. Results Several peptides were identified either in the coelomic fluid or the spine extract (except for E. lucunter). The peptide sequences were aligned with public deposited sequences and possible functions were inferred. Moreover, some peptides can be cryptides, since their sequences were identified within functional proteins, for example thymosin from Strongylocentrotus purpuratus. Conclusions Although preliminary, the peptidomic approach presented here reports, for the first time, the abundance of novel biological molecules derived from these animals. The discovery of such molecules may be of potential biotechnological application, as described for other organisms; nevertheless, further studies are required.(AU)
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Peptides
/
Sea Urchins
/
Biological Products
/
Arbacia
/
Lytechinus
Type of study:
Prognostic study
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
J. venom. anim. toxins incl. trop. dis
Year:
2016
Type:
Article
Institution/Affiliation country:
Butantan Institute/BR
/
University of São Paulo/BR
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