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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
2
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pubmed:dateCreated |
1978-7-26
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pubmed:abstractText |
A new spectral species of the purple membrane of Halobacterium halobium has been observed below pH 3.2. The formation of this new species is temperature-dependent and is favoured by increasing temperature up to the physiological range of the organism. The rate of formation at pH 3.0 and 22 degrees C is 7.9 x 10-3s-1. The spectral distribution and temperature-dependence of the new species suggest that it may be phototransiet O, stabilized by low pH. Flash-photolytic experiments in the pH range 7.2-2.7 show a pH-dependence corresponding to the static events and are consistent with a single protonation of bacteriorhodopsin below pH 3.22. These results can also be interpreted in terms of the stabilization of phototransient O at low pH. The temperature-dependence of the formation of the acid-induced species may reflect a relationship with the phase transition of the membrane.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-10022,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-1110752,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-1182264,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-1182271,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-1247534,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-1267768,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-14304888,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-16598,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-4272126,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-4418026,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-4517939,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-4745733,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-4781385,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-4940442,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-938642,
http://linkedlifedata.com/resource/pubmed/commentcorrection/26337-963044
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0264-6021
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
171
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
469-76
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
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pubmed:year |
1978
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pubmed:articleTitle |
Studies of an acid-induced species of purple membrane from Halobacterium halobium.
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pubmed:publicationType |
Journal Article
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