http://www.cnr.it/ontology/cnr/individuo/prodotto/ID230399
Binding of BiP to assembly-defective plant protein (Articolo in rivista)
- Type
- Label
- Binding of BiP to assembly-defective plant protein (Articolo in rivista) (literal)
- Anno
- 1994-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1046/j.1365-313X.1994.5010103.x (literal)
- Alternative label
E. Pedrazzini, G. Giovinazzo, R. Bollini, A. Ceriotti and A. Vitale (1994)
Binding of BiP to assembly-defective plant protein
in Plant journal (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- E. Pedrazzini, G. Giovinazzo, R. Bollini, A. Ceriotti and A. Vitale (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://onlinelibrary.wiley.com/doi/10.1046/j.1365-313X.1994.5010103.x/abstract (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Consiglio Nazionale delle Ricerche - Istituto di Biologia e Biotecnologia Agraria Milano (literal)
- Titolo
- Binding of BiP to assembly-defective plant protein (literal)
- Abstract
- The binding protein (BiP) has been implicated as a
mediator of protein folding and assembly in the endoplasmic
reticulum of mammalian cells and has often
been found in stable association with structurally
defective proteins. To acquire information on the
activity of BiP in plant cells, we have expressed
in tobacco protoplasts the wild type form and
an assembly-defective form of bean phaseolin.
Phaseolin (PHSL) is a soluble, trimeric, storage
glycoprotein co-translationally inserted into the
lumen of the endoplasmic reticulum and then transported
along the secretory pathway to the protein
storage vacuoles. We have previously shown that a
PHSL mutant in which the last 59 amino acids have
been deleted (A363PHSL) is unable to form trimers
and is retained in a pre-Golgi compartment when
synthesized in Xenopus oocytes. When transiently
expressed in tobacco leaf protoplasts, wild-type
PHSL is correctly glycosylated and assembles
efficiently and rapidly into trimers. A363PHSL is
also correctly glycosylated but does not trimerize.
Tobacco BiP and A363PHSL are co-immunoselected
using either anti-PHSL or anti-BiP antibodies. Under
the same conditions, co-immunoselection of BiP with
wild-type PHSL is not detectable. The BiP bound to
A363PHSL can be released by treatment of the complex
with ATP, indicating that the binding is related to
the proposed function of BiP in protein folding and
assembly in the endoplasmic reticulum. These data
indicate that BiP stably binds structurally defective
proteins in plant cells. (literal)
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