Expansins

Mark W. Shieh, Daniel J. Cosgrove

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Biochemical dissection of the "acid growth" process of plant cell walls led to the isolation of a new class of wall loosening proteins, called expansins. These proteins affect the rheology of growing walls by permitting the microfibril-matrix network to slide, thereby enabling the wall to expand. Molecular sequence analysis suggests that expansins might have a cryptic glycosyl transferase activity, but biochemical results suggest that expansins disrupt noncovalent bonding between microfibrils and the matrix. Recent discoveries of a new expansin family and gene expression in fruit, meristems and cotton fibers have enlarged our view of the developmental functions of this group of wall loosening proteins.

Original languageEnglish (US)
Pages (from-to)149-157
Number of pages9
JournalJournal of Plant Research
Volume111
Issue number1
DOIs
StatePublished - Mar 1998

All Science Journal Classification (ASJC) codes

  • Plant Science

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