Ice-active proteins from the Antarctic nematode Panagrolaimus davidi

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dc.contributor.author Barrett, John
dc.contributor.author Ramlov, H.
dc.contributor.author Wharton, D. A.
dc.contributor.author Marshall, C. J.
dc.contributor.author Goodall, G.
dc.date.accessioned 2009-09-23T15:24:18Z
dc.date.available 2009-09-23T15:24:18Z
dc.date.issued 2005
dc.identifier.citation Barrett , J , Ramlov , H , Wharton , D A , Marshall , C J & Goodall , G 2005 , ' Ice-active proteins from the Antarctic nematode Panagrolaimus davidi ' Cryobiology , pp. 198-207 . en
dc.identifier.other PURE: 118603
dc.identifier.other dspace: 2160/3065
dc.identifier.uri http://hdl.handle.net/2160/3065
dc.description Wharton, D. A., Barrett, J., Goodall, G., Marshall, C. J., Ramlov, H. (2005). Ice-active proteins from the Antarctic nematode Panagrolaimus davidi. Cryobiology, 51, (2), pp. 198-207 Keywords: Ice-binding; Antifreeze; Recrystallization inhibition; Intracellular freezing en
dc.description.abstract The Antarctic nematode Panagrolaimus davidi has an ice-active protein that shows recrystallization inhibition but no thermal hysteresis. It belongs to a class of ice-active proteins found in a variety of freezing-tolerant organisms that display insignificant levels of thermal hysteresis in the context of the environmental temperatures to which they are exposed. The recrystallization inhibition activity of the P. davidi ice-active protein is present at low concentrations, is relatively heat stable, is affected more by acid than by alkaline pH, is not calcium dependant and is not affected by reagents that target carbohydrate residues or sulphydryl linkages. A hexagonal ice crystal growth form also indicates the presence of an ice-active protein. This protein could have important functions in the survival of intracellular freezing by this organism by controlling the stability of ice after its formation. en
dc.format.extent 10 en
dc.language.iso eng
dc.relation.ispartof Cryobiology en
dc.title Ice-active proteins from the Antarctic nematode Panagrolaimus davidi en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.cryobiol.2005.07.001
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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