1EX1

BETA-D-GLUCAN EXOHYDROLASE FROM BARLEY

Summary for 1EX1

• Entry DOI: 10.2210/pdb1ex1/pdb
• Descriptor: PROTEIN (BETA-D-GLUCAN EXOHYDROLASE ISOENZYME EXO1), 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-D-fucopyranose-(1-3)]2-acetamido-2-deoxy-beta-D-glucopyranose, 2-acetamido-2-deoxy-beta-D-glucopyranose, ... (5 entities in total)
• Functional Keywords: hydrolase, cell wall degradation
• Biological source: Hordeum vulgare
• Total number of polymer chains: 1
• Total formula weight: 66975.00

Authors

Varghese, J.N.,Hrmova, M.,Fincher, G.B. (deposition date: 1998-11-10, release date: 1999-11-17, Last modification date: 2024-10-30)

Primary citation

Varghese, J.N.,Hrmova, M.,Fincher, G.B.
Three-dimensional structure of a barley beta-D-glucan exohydrolase, a family 3 glycosyl hydrolase.
Structure Fold.Des., 7:179-190, 1999

PubMed Abstract: Cell walls of the starchy endosperm and young vegetative tissues of barley (Hordeum vulgare) contain high levels of (1-->3,1-->4)-beta-D-glucans. The (1-->3,1-->4)-beta-D-glucans are hydrolysed during wall degradation in germinated grain and during wall loosening in elongating coleoptiles. These key processes of plant development are mediated by several polysaccharide endohydrolases and exohydrolases.

PubMed: 10368285
DOI: 10.1016/S0969-2126(99)80024-0

Experimental method

X-RAY DIFFRACTION (2.2 Å)