Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-9-18
pubmed:abstractText
Life on earth is ubiquitous within the limits from -5 to 110 degrees C for temperature, 0.1 to 120 MPa for hydrostatic pressure, 1.0 to 0.6 for water activity and pH 1 to 12. In general, mutative adaptation of proteins to changing environmental conditions tends to maintain 'corresponding states' regarding overall topology, flexibility and hydration. Due to the minute changes in the free energy of stabilization responsible for enhanced stability, nature provides a wide variety of different adaptative strategies. In the case of thermophilic proteins, improved packing densities are crucial. In halophilic proteins, decreased hydrophobicity and clustered surface charges serve to increase water and salt binding required for solubilization at high salt concentration. In the case of barophiles, high-pressure adaptation is expected to be less important than adaptation to low temperatures governing the deep sea. Nothing is known with respect to the mechanisms underlying psychrophilic and acidophilic/alkalophilic adaptation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
268
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
344-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Proteins under extreme physical conditions.
pubmed:affiliation
Institute of Biophysics and Physical Biochemistry, University of Regensburg, FRG.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't