Polysaccharide hydrolase folds diversity of structure and convergence of function

1997 ◽  
Vol 63-65 (1) ◽  
pp. 315-325 ◽  
Author(s):  
Michael E. Himmel ◽  
P. Andrew Karplus ◽  
Joshua Sakon ◽  
Willam S. Adney ◽  
John O. Baker ◽  
...  
Keyword(s):  
Polysaccharide Hydrolase

Hydrolytic enzymes of some periphytic marine bacteria

1972 ◽  
Vol 18 (9) ◽  
pp. 1483-1490 ◽  
Author(s):  
William A. Corpe ◽  
Harvey Winters
Keyword(s):  
Hydrolytic Enzymes ◽  
Intracellular Enzyme ◽  
Washed Cell ◽  
Bacterial Cultures ◽  
Cell Extracts ◽  
Cell Autolysis ◽  
Ecological Importance ◽  
Cell Envelopes ◽  
Relationship Of ◽  
Polysaccharide Hydrolase

Several periphytic marine bacterial cultures were examined for their content of hydrolytic enzymes. Quantitative assays were done for extracellular and intracellular proteinase, phosphatase, esterase, β-glucosidase, and four polysaccharide hydrolase activities. While some of the enzymes were released extracellularly by growing cells, the greatest amounts of proteinase, esterase, phosphatase, and β-glucosidase were located in the cells and released by mechanical breakage or by cell autolysis. Substantial amounts of proteinase were found in washed cell envelopes of the bacteria. All of the bacteria showed some enzymatic activity against one or more of the algal and microbial acid polysaccharides tested. Enzymes active against these polyanions were found either extracellularly or in cell extracts, depending on the culture concerned. Partial lysis of cell envelopes from two of the periphytes was produced by extracellular or intracellular enzyme mixtures. The ecological importance of bacterial hydrolases and the possible relationship of periphytic bacteria to grazing and detritus feeding invertebrates is discussed.

Homogenous graphene oxide-peptide nanofiber hybrid hydrogel as biomimetic polysaccharide hydrolase

Nanoscale ◽  
2017 ◽  
Vol 9 (45) ◽  
pp. 18066-18074 ◽  
Author(s):  
Xingxing He ◽  
Fuyuan Zhang ◽  
Jifeng Liu ◽  
Guozhen Fang ◽  
Shuo Wang
Keyword(s):  
Hydrogen Bonding ◽  
Graphene Oxide ◽  
Hybrid Hydrogel ◽  
Glycosidic Bonds ◽  
Hydrogen Bonding Network ◽  
Polysaccharide Hydrolase

Cellulose, an impressive potential sustainable fuel, is difficult to hydrolyze because of the protection of β-1,4-glycosidic bonds through the tight hydrogen bonding network.

scholarly journals The distribution of polysaccharide hydrolase activity in gastropods and bivalves.

1985 ◽  
Vol 51 (2) ◽  
pp. 301-308 ◽  
Author(s):  
Toshio ONISHI ◽  
Mampei SUZUKI ◽  
Ryo KIKUCHI
Keyword(s):  
Hydrolase Activity ◽  
Polysaccharide Hydrolase

Polysaccharide hydrolase production by the rumen fungus Caecomyces communis

1996 ◽  
Vol 147 (5) ◽  
pp. 363-370 ◽  
Author(s):  
C. Gerbi ◽  
J. Bata ◽  
A. Breton ◽  
G. Prensier
Keyword(s):  
Rumen Fungus ◽  
Polysaccharide Hydrolase
Sign in / Sign up

Export Citation Format

Share Document