Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1984-6-22
pubmed:abstractText
A new subgel phase is demonstrated to occur in hydrated dimyristoylphosphatidylethanolamine ( DMPE ) by using dilatometric and calorimetric techniques. The formation of the subgel phase takes place very slowly at temperatures near 0 degree C, but it can still be observed at 25 degrees C. Once formed, the subgel phase melts (delta Hh = 16.0 +/- 0.6 kcal/mol and delta V = 0.085 +/- 0.014 mL/g) directly into the liquid-crystalline phase at a temperature, Th = 56.3 degrees C, that is higher than the gel to liquid-crystalline transition temperature, Tm = 49.6 degrees C. Thus, the gel phase appears to be metastable over its entire temperature range. In this regard, DMPE behaves differently from dipalmitoylphosphatidylcholine and distearoylphosphatidylcholine but similarly to dilaurylphosphatidylethanolamine . This unusual long-lived metastability provides cells an additional option in determining the properties of membranes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1538-41
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Metastability in the phase behavior of dimyristoylphosphatidylethanolamine bilayers.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.