E-resources
Peer reviewed
Open access
-
Kusumi, Ryosuke; Asai, Shinichi; He, Qinfeng; Kobayashi, Kayoko; Kimura, Satoshi; Yoshida, Makoto; Wada, Masahisa
Carbohydrate research, 12/2023, Volume: 534Journal Article
We demonstrated that a unique polysaccharide with extremely high molecular weight can be easily obtained via a low-cost, mild reaction in a water medium from sucrose, a photosynthetic product. α-1,3/1,6-Glucosyltransferase L (GtfL) from Streptococcus salivarius produced water-insoluble α-d-glucan from sucrose at 37 °C. Gel permeation chromatography revealed the molecular weight was extremely high; the weight-average molecular weight values were more than 1,000,000 irrespective of the substrate concentration. The Smith degradation of neat glucan and NMR spectroscopic analyses of the acetyl derivative revealed a structure similar to that of a comb-type graft copolymer, α-d-(1 → 3)-graft-(1 → 6)-glucan. The anhydroglucose units (AGUs) in the main-chain backbone are linked by (1 → 3)-glycosidic bonds, whereas a side chain consisting of four AGUs via (1 → 6)-glycosidic bonds alternately extends from C6 of the main chain. Display omitted •In vitro synthesis of an α-d-glucan with α-1,3/1,6-glucosyltransferase L from S. salivarius.•Easily obtainable glucan with extremely high molecular weight under a mild condition.•Comb-like structure composed of (1 → 3)-linked main chain and (1 → 6)-linked side chains
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.