Linked Life Data

228939

Source:http://linkedlifedata.com/resource/pubmed/id/228939

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1980-2-28
pubmed:abstractText
1. The copper protein mavicyanin has been isolated and purified from the green squash Cucurbita pepo medullosa. 2. Mavicyanin contains one type-1 copper/18000 Mr, which can be characterized by: intense absorption maximum at 600 nm (epsilon = 5000 M-1 cm-1/Cu, A280/A600 = 8.0 +/- 0.5, A600/A403 = 7.0 +/- 0.25, maximum of fluorescence emission at 335 nM. 3. In the oxidized state the copper of mavicyanin is 100% detectable by electron paramagnetic resonance (EPR). Computer simulation of the rhombic EPR signal gives gz = 2.287, gy = 2.077, gx = 2.025, Az = 3.5 mT, Ay = 2.9 mT and Ax = 5.7 mT. 4. Like other simple type-1 copper proteins, such as stellacyanin, azurin or plastocyanin, mavicyanin is readily reduced by hydroquinone or L-ascorbic acid. Its midpoint potential E'm was determined to be + 285 mV. The reduced protein reacts rather slowly with dioxygen, but is rapidly reoxidized by ferricyanide.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
77-84
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Mavicyanin, a blue copper protein from Cucurbita pepo medullosa. Purification and characterization.
pubmed:publicationType
Journal Article