Articles liés à The Effect of Mutating the PDZ domains within secreted...

The Effect of Mutating the PDZ domains within secreted PDZD2: on its insulinotropic action in INS-IE cells - Couverture souple

Wat

 
9783844385335: The Effect of Mutating the PDZ domains within secreted PDZD2: on its insulinotropic action in INS-IE cells
Couverture souple
ISBN 10 : 3844385339 ISBN 13 : 9783844385335
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

PDZ domains are one of the most common protein-protein interaction domains in human. PDZ domain containing 2 protein (PDZD2) contains 6 PDZ domains and is highly expressed in pancreatic beta cells. It undergoes cleavage in the endoplasmic reticulum to produce a secreted form PDZD2 (sPDZD2) which retains the last two PDZ domains of PDZD2. sPDZD2 is a candidate beta cell regulatory factor. In current study, two mutated forms of sPDZD2 were generated with alterations in the amino acid sequence within the carboxylate-binding loop of one of the two PDZ domains, either at the PDZ5 or at the PDZ6 domain. Current study revealed that both the PDZ5-mutated and PDZ6-mutated sPDZD2 proteins failed to exert the insulinotropic effect that the wildtype sPDZD2 had on INS-1E cells when added exogenously in the culture medium. Both mutant proteins also failed to rescue the silencing action of siRNA on the insulinotropic effect of endogenous PDZD2 in INS-1E cells. These results suggest that intact carboxylate-binding loops of both PDZ5 and PDZ6 domain are crucial for the insulinotropic effect of sPDZD2 exerting on INS-1E cells.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

PDZ domains are one of the most common protein-protein interaction domains in human. PDZ domain containing 2 protein (PDZD2) contains 6 PDZ domains and is highly expressed in pancreatic beta cells. It undergoes cleavage in the endoplasmic reticulum to produce a secreted form PDZD2 (sPDZD2) which retains the last two PDZ domains of PDZD2. sPDZD2 is a candidate beta cell regulatory factor. In current study, two mutated forms of sPDZD2 were generated with alterations in the amino acid sequence within the carboxylate-binding loop of one of the two PDZ domains, either at the PDZ5 or at the PDZ6 domain. Current study revealed that both the PDZ5-mutated and PDZ6-mutated sPDZD2 proteins failed to exert the insulinotropic effect that the wildtype sPDZD2 had on INS-1E cells when added exogenously in the culture medium. Both mutant proteins also failed to rescue the silencing action of siRNA on the insulinotropic effect of endogenous PDZD2 in INS-1E cells. These results suggest that intact carboxylate-binding loops of both PDZ5 and PDZ6 domain are crucial for the insulinotropic effect of sPDZD2 exerting on INS-1E cells.

Biographie de l'auteur

Dr Winnie Wat was graduated at the medical school of the University of Hong Kong in 1997. She works as an endocrinologist in Hong Kong. In 2009, She pursued her degree in Master of Medical Sciences at her alma mater and engaged in research on the insulinotropic effect of secreted PDZD2.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3844385339
ISBN 13 
9783844385335
Reliure
Broché
Nombre de pages
96
Coordonnées du fabricant
non disponible
Personne responsable
KreGa Onlinehandel GmbH
4950000000000
info@krega-onlinehandel.de

Birkenweg 31
Brakel
33034
Allemagne