Source:http://linkedlifedata.com/resource/pubmed/id/21391723
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
2011-4-11
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pubmed:abstractText |
Fluorescent proteins are widely used in modern experimental biology, but much controversy exists regarding details of maturation of different types of their chromophores. Here we studied possible mechanisms of DsRed-type red chromophore formation using synthetic biomimetic GFP-like chromophores, bearing an acylamino substituent, corresponding to an amino acid residue at position 65. We have shown these model compounds to readily react with molecular oxygen to produce a highly unstable DsRed-like acylimine, isolated in the form of stable derivatives. Under the same aerobic conditions an unusual red-shifted imide chromophore--a product of 4-electron oxidation of Gly65 residue--is formed. Our data showed that GFP chromophore is prone to autoxidation at position 65 C? by its chemical nature with basic conditions being the only key factor required.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Alkalies,
http://linkedlifedata.com/resource/pubmed/chemical/Green Fluorescent Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Imines,
http://linkedlifedata.com/resource/pubmed/chemical/Luminescent Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Molecular Probes,
http://linkedlifedata.com/resource/pubmed/chemical/Oxygen,
http://linkedlifedata.com/resource/pubmed/chemical/fluorescent protein 583
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
1520-6904
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
15
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pubmed:volume |
76
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2782-91
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pubmed:meshHeading |
pubmed-meshheading:21391723-Alkalies,
pubmed-meshheading:21391723-Amino Acid Substitution,
pubmed-meshheading:21391723-Catalysis,
pubmed-meshheading:21391723-Cyclization,
pubmed-meshheading:21391723-Green Fluorescent Proteins,
pubmed-meshheading:21391723-Imines,
pubmed-meshheading:21391723-Luminescent Proteins,
pubmed-meshheading:21391723-Molecular Mimicry,
pubmed-meshheading:21391723-Molecular Probes,
pubmed-meshheading:21391723-Oxidation-Reduction,
pubmed-meshheading:21391723-Oxygen
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pubmed:year |
2011
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pubmed:articleTitle |
A synthetic GFP-like chromophore undergoes base-catalyzed autoxidation into acylimine red form.
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pubmed:affiliation |
Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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