http://www.cnr.it/ontology/cnr/individuo/prodotto/ID17600
Mass spectrometry strategies applied to the characterization of proline-rich peptides from secretory parotid granules of pig (Sus scrofa) (Articolo in rivista)
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- Label
- Mass spectrometry strategies applied to the characterization of proline-rich peptides from secretory parotid granules of pig (Sus scrofa) (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/jssc.200700343 (literal)
- Alternative label
Fanali C., Inzitari R., Cabras T., Fiorita A., Scarano E., Patamia M., Petruzzelli R., Bennick A., Messana I., Castagnola M. (2008)
Mass spectrometry strategies applied to the characterization of proline-rich peptides from secretory parotid granules of pig (Sus scrofa)
in Journal of separation science (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Fanali C., Inzitari R., Cabras T., Fiorita A., Scarano E., Patamia M., Petruzzelli R., Bennick A., Messana I., Castagnola M. (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Chiara Fanali1
Rosanna Inzitari1
Tiziana Cabras2
Antonella Fiorita3
Emanuele Scarano3
Maria Patamia4
Raffaele Petruzzelli5
Anders Bennick6
Irene Messana2
Massimo Castagnola1, 4
1Institute of Biochemistry and Clinical Biochemistry, Catholic University, Rome, Italy
2Department of Sciences Applied to Biosystems, Cagliari University, Monserrato Campus,
Monserrato, Cagliari, Italy
3Institute of Otolaryngology, Catholic University, Rome, Italy
4Institute for the Chemistry of Molecular Recognition, National Research Council (CNR), Rome,
Italy
5Department of Biomedical Sciences, University \"G.D'Annunzio\", Chieti Scalo (CH), Italy
6Department of Biochemistry, University of Toronto, Toronto, Canada (literal)
- Titolo
- Mass spectrometry strategies applied to the characterization of proline-rich peptides from secretory parotid granules of pig (Sus scrofa) (literal)
- Abstract
- Basic proline-rich proteins (bPRPs) are a class of proteins widely present in saliva of
humans and other mammals. They are synthesized as preproproteins and enzymatically
cleaved into small peptides before secretion from the salivary glands. Recently,
we characterized two proline-rich peptides (SP-A and SP-B) in parotid secretory granules
of pig (Sus Scrofa) that are derived from three isoforms of a PRP proprotein
(Swiss-Prot data bank: Q95JC9-1, Q95JC9-2 and Q95JC9-3). Together the coding
regions for SP-A and SP-B, which are repeated many times, account for 52-70% of
the coding regions of the PRP proproteins. This study was undertaken to identify
peptides encoded by unassigned regions of the PRP proproteins. RP-HPLC-ESI-IT-MS
analysis of enriched granule preparations from pig parotid glands by two different
analytical strategies identified ten new proline-rich peptides derived from the three
proproteins. Together with the coding regions for SP-A and SP-B already identified it
was possible to assign 68-75% of the proproteins coding regions. The peptide
sequences indicated a number of unusual proteolytic cleavage sites suggesting the
presence of unknown proprotein convertases. (literal)
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