Isolation and responses to stress of a gene that encodes a luminal binding protein in Arabidopsis thaliana.

A cDNA encoding a luminal binding protein (BiP) was isolated from Arabidopsis thaliana. In Arabidopsis seedlings, accumulation of transcripts for BiP was induced not only by inhibition of the N-glycosylation of proteins by tunicamycin but also by inhibition of the processing of N-linked glycans by castanospermine. Heat-shock stress also induced accumulation of the transcripts in Arabidopsis.