Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-10-10
pubmed:abstractText
A new class of thiols, the 1-methyl-4-mercaptohistidines, has been found in high concentrations in invertebrate eggs. This family, called the ovothiols, has unusual redox properties, including the ability to confer a CN- -resistant NAD(P)H oxidase activity on ovoperoxidase, the enzyme that catalyzes the physiological crosslinking of the fertilization envelope with dityrosine residues. Ovothiol has a redox potential of 44 mV positive to glutathione and thus is maintained in the reduced state in eggs by reduced glutathione, without the need for an ovothiol reductase. We propose that high concentrations of reduced ovothiol are present in eggs to protect them from the oxidative stress caused by the respiratory burst of fertilization.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0951-6433
pubmed:author
pubmed:issnType
Print
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
85-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Oxidative stress and the role of novel thiol compounds at fertilization.
pubmed:affiliation
Department of Biochemistry, University of Washington, Seattle 98125.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review