Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1989-8-31
pubmed:abstractText
The conditions for optimum incorporation of radioactive amino acids into proteins of cultured postimplantation mouse embryos were investigated under the aspect of using these proteins for two-dimensional electrophoretic separations and fluorography. The aim was to obtain highly radioactively labeled proteins under conditions as physiological as possible. Mouse embryos of Days 8, 10, and 11 of gestation were cultured in Tyrode's solution. Incubation time and concentration of [3H (or 14C)]amino acids in the culture medium were varied over a broad range. Embryos were prepared with placenta and yolk sac or without any embryonic envelopes. After culturing, the physiologic-morphologic state of the embryos was registered on the basis of several criteria. The radioactivity taken up by the total protein of each embryo was determined and calculated in disintegrations per minute per milligram protein per embryo. To approach our aim, embryos of different developmental stages had to be cultured under different conditions. A good compromise for Day-8, Day-10, and Day-11 embryos was: embryos prepared with yolk sac (opened) and placenta, 150 microCi radioactive amino acids added per milliliter medium, incubation for 4 to 5 h. For maximum labeling of proteins it is advisable to culture Day-10 embryos without embryonic envelopes under particular conditions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0883-8364
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
634-42
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Radioactive labeling of proteins in cultured postimplantation mouse embryos. II. Dose and time dependency.
pubmed:affiliation
Institut für Humangenetik, Freie Universität Berlin, FRG.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't