Linked Life Data

14623287

Source:http://linkedlifedata.com/resource/pubmed/id/14623287

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-11-18
pubmed:abstractText
Ice recrystallization, the growth of large ice crystals at the expense of small ones, stresses freeze tolerant organisms and causes spoilage of frozen foods. This process is inhibited by antifreeze proteins (AFPs). Here, we present a simple method for determining the ice recrystallization inhibition (RI) activity of an AFP under physiological conditions using 10microl glass capillaries. Serial dilutions were prepared to determine the concentration below which RI activity was no longer detected, termed the RI endpoint. For type III AFP this was 200nM. The capillary method allows samples to be aligned and viewed simultaneously, which facilitates RI endpoint determination. Once prepared, the samples can be used reproducibly in subsequent RI assays and can be archived in a freezer for future reference. This method was used to detect the elution of type III AFP from a Sephadex G-75 size-exclusion column. RI activity was found at the expected V(e) for a 7kDa protein and also unexpectedly in the void volume.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
311
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1041-6
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
A facile method for determining ice recrystallization inhibition by antifreeze proteins.
pubmed:affiliation
Department of Biochemistry and the Protein Engineering Network of Centres of Excellence, Queen's University, Ont., K7L 3N6, Kingston, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Evaluation Studies