Comparison of the expression patterns of genes coding for wheat gluten proteins and proteins involved in the secretory pathway in developing caryopses of wheat.
The synthesis of gluten proteins in the developing caryopsis of wheat is highly coordinated, with mRNAs for the various groups being detected from 11 days after anthesis, and the proteins from about 14 days. In contrast, the levels of transcripts for BiP, PDI and PPI are highest at earlier stages of development. The levels of transcripts for two small GTP binding proteins involved in the secretory pathway (Rab1 and Rab5) are also highest early in development, which is consistent with the retention of most of the gluten proteins within the ER to form protein bodies.
Grimwade
B
B
IACR-Long Ashton Research Station, Department of Agricultural Sciences, University of Bristol, Long Ashton, Bristol, UK.
Tatham
A S
AS
Freedman
R B
RB
Shewry
P R
PR
Napier
J A
JA
D000595:Amino Acid Sequence; D015152:Blotting, Northern; D018507:Gene Expression Regulation, Developmental; D018506:Gene Expression Regulation, Plant; D005983:Glutens / Q000096:biosynthesis / Q000235:genetics* / Q000378:metabolism; D008969:Molecular Sequence Data; D017510:Protein Folding; D012333:RNA, Messenger / Q000235:genetics; D014908:Triticum / Q000235:genetics* / Q000254:growth & development
D012333:RNA, Messenger; D005983:Glutens