Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-7-6
pubmed:abstractText
Amylosucrase from Neisseria polysaccharea catalyzes the synthesis of an amylose-like polymer from sucrose. Sequence alignment revealed that it belongs to the glycoside hydrolase family 13. Site-directed mutagenesis enabled the identification of functionally important amino acid residues located at the active center. Asp-294 is proposed to act as the catalytic nucleophile and Glu-336 as general acid base catalyst in amylosucrase. The conserved Asp-401, His-195 and His-400 residues are critical for the enzymatic activity. These results provide strong support for the predicted close structural and functional relationship between the sucrose-glucosyltransferases and enzymes of the alpha-amylase family.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
474
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
33-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Identification of key amino acid residues in Neisseria polysaccharea amylosucrase.
pubmed:affiliation
Centre de Bioingénierie Gilbert Durand, UMR CNRS 5504, UR INRA 792, INSA, 135 Avenue de Rangueil, 31 077 Toulouse Cedex 4, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't