In Vivo pulse labeling of proteins in attached leaves with radioactive amino acids

Susan J. Martinocatt, Tamara L. Jones, Donald R. Ort

Research output: Contribution to journalArticle

Abstract

The pulse labeling of proteins in attached leaves by the incorporation of radioactive amino acids can be a valuable approach to study a wide range of topics pertaning to plant gene expression. Transient changes in the rate of net protein synthesis can be measured since pulse labeling permits discrimination between proteins actively synthesized during the labeling interval from those accumulated at earlier times. Specific procedures for a rapid and convenient method of in vivo pulse labeling are outlined which we believe could be broadly useful in plant biological research. A particularly important technical feature of the protocol is electroblotting of radioactive proteins from the sodium dodecyl sulfate acrylamide resolving gel matrix to polyvinylidene di-fluoride transfer membrane. This step permits a single polyacrylamide slab gel to be used for autoradiography, immunoblot analysis, and protein staining, thereby greatly facilitating comparison among these complementary techniques and resulting in a significant savings in time and radioactive sample. Central considerations concerning the quantitation and interpretation of in vivo pulse labeling data are discussed.

Original languageEnglish (US)
Pages (from-to)188-196
Number of pages9
JournalAnalytical Biochemistry
Volume211
Issue number2
DOIs
StatePublished - Jun 1993

Fingerprint

Labeling
Amino Acids
Proteins
Plant Genes
Acrylamide
Autoradiography
Fluorides
Gene expression
Sodium Dodecyl Sulfate
Gels
Staining and Labeling
Membranes
Gene Expression
Research

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

In Vivo pulse labeling of proteins in attached leaves with radioactive amino acids. / Martinocatt, Susan J.; Jones, Tamara L.; Ort, Donald R.

In: Analytical Biochemistry, Vol. 211, No. 2, 06.1993, p. 188-196.

Research output: Contribution to journalArticle

Martinocatt, Susan J. ; Jones, Tamara L. ; Ort, Donald R. / In Vivo pulse labeling of proteins in attached leaves with radioactive amino acids. In: Analytical Biochemistry. 1993 ; Vol. 211, No. 2. pp. 188-196.
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