Linked Life Data

7867631

Source:http://linkedlifedata.com/resource/pubmed/id/7867631

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-3-28
pubmed:abstractText
The in vivo effects of ultraviolet-B radiation (280-320 nm) on photosystem-II activity and degradation of the D1 protein are investigated and compared with the in vitro results on isolated thylakoids and other detergent-extracted photosystem-II preparations. A cleavage site in the second transmembrane segment of the D1 protein, giving rise to a 20-kDa C-terminal and a 13-kDa N-terminal fragment pair, is detected after irradiation of entire leaves as well as in all photosystem-II preparations, irrespective of their actual ability to evolve oxygen but depending on the presence of Mn ions associated with the water-splitting system. Damage to the plastoquinone moiety, observed by other authors, is confirmed and is proposed to be responsible for the impairment of electron-transport activity, but not for the observed cleavage of the D1 protein.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
227
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
723-9
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Degradation of the D1 protein of photosystem-II reaction centre by ultraviolet-B radiation requires the presence of functional manganese on the donor side.
pubmed:affiliation
Dipartimento di Biologia, Università di Padova, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't