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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:dateCreated |
1994-1-10
|
| pubmed:abstractText |
Kinetic studies of primary processes of conformational ordering in gel-forming biopolymers have suggested that a change in mechanism from intermolecular to intramolecular multistrand formation occurs on lowering the concentration of biopolymer. We report here ultrastructural observations consistent with intramolecular double stranding in a carbohydrate polymer, iota-carrageenan, by arresting this process of primary conformational ordering by an ultra-rapid freeze fixation technique. High-resolution transmission electron microscopy (TEM) revealed isolated iota-carrageenan chains showing a range of morphologies (linear, circular, and hairpin) consistent with intramolecular stranding. Control experiments in which iota-carrageenan was frozen in the disordered form revealed longer and thinner strands.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Oct
|
| pubmed:issn |
0008-6215
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
4
|
| pubmed:volume |
248
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| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
225-31
|
| pubmed:dateRevised |
2000-12-18
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| pubmed:meshHeading | |
| pubmed:year |
1993
|
| pubmed:articleTitle |
Ultrastructural evidence for intramolecular double stranding in iota-carrageenan.
|
| pubmed:affiliation |
Institute for Applied Biology, University of York, Heslington, United Kingdom.
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| pubmed:publicationType |
Journal Article
|