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. 1981 May;78(5):2830–2832. doi: 10.1073/pnas.78.5.2830

Ovine prolactin: equilibrium characteristics of the recombinant molecule formed by noncovalent interaction of two fibrinolysin fragments by fluorescence polarization.

M D Jibson, C H Li, C B Glaser
PMCID: PMC319451  PMID: 6454891

Abstract

The equilibrium characteristics of the recombined molecule formed by noncovalent interaction of two fibrinolysin fragments of ovine prolactin (oPRL) have been studied with fluorescence polarization. Fluorescein isothiocyanate (isomer I) was used to label oPRL-(1-53), creating a fluorescent peptide indistinguishable from the unlabeled fragment in the complementation reaction with oPRL-(54-199). The dissociation constant of the recombinant prolactin was 0.144 microM at 30 degrees C, with a free energy of dissociation of 9.50 kcal/mol.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Birk Y., Li C. H. Two fragments from fibrinolysin digests of ovine prolactin: characterization and recombination to generate full immunoreactivity. Proc Natl Acad Sci U S A. 1978 May;75(5):2155–2159. doi: 10.1073/pnas.75.5.2155. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. DANDLIKER W. B., SCHAPIRO H. C., MEDUSKI J. W., ALONSO R., FEIGEN G. A., HAMRICK J. R., Jr APPLICATION OF FLUORESCENCE POLARIZATION TO THE ANTIGEN-ANTIBODY REACTION. THEORY AND EXPERIMENTAL METHOD. Immunochemistry. 1964 Oct;1:165–191. doi: 10.1016/0019-2791(64)90041-2. [DOI] [PubMed] [Google Scholar]
  3. Kawauchi H., Tuzimura K., Maeda H., Ishida N. Reaction of fluorescein-isothiocyanate with proteins and amino acids. II. Preparation of fluorescein-thiohydantoin amino acids and their thin-layer chromatography. J Biochem. 1969 Dec;66(6):783–789. doi: 10.1093/oxfordjournals.jbchem.a129208. [DOI] [PubMed] [Google Scholar]
  4. Kawauchi H., Tuzimura K., Maeda H., Ishida N. Reaction of fluorescein-isothiocyanate with proteins and amino acids. II. Preparation of fluorescein-thiohydantoin amino acids and their thin-layer chromatography. J Biochem. 1969 Dec;66(6):783–789. doi: 10.1093/oxfordjournals.jbchem.a129208. [DOI] [PubMed] [Google Scholar]
  5. Kinoshita K., Maeda H., Hinuma Y. Fluorescence polarization assay of plasmin, plasminogen, and plasminogen activator. Anal Biochem. 1980 May 1;104(1):15–22. doi: 10.1016/0003-2697(80)90270-5. [DOI] [PubMed] [Google Scholar]
  6. Li C. H., Dixon J. S., Lo T. B., Schmidt K. D., Pankov Y. A. Studies on pituitary lactogenic hormone. XXX. The primary structure of the sheep hormone. Arch Biochem Biophys. 1970 Dec;141(2):705–737. doi: 10.1016/0003-9861(70)90191-8. [DOI] [PubMed] [Google Scholar]
  7. Li C. H. Studies on pituitary lactogenic hormone. The primary structure of the porcine hormone. Int J Pept Protein Res. 1976;8(2):205–224. doi: 10.1111/j.1399-3011.1976.tb02497.x. [DOI] [PubMed] [Google Scholar]
  8. Maeda H. Assay of proteolytic enzymes by the fluorescence polarization technique. Anal Biochem. 1979 Jan 1;92(1):222–227. doi: 10.1016/0003-2697(79)90649-3. [DOI] [PubMed] [Google Scholar]
  9. WEBER G. Rotational Brownian motion and polarization of the fluorescence of solutions. Adv Protein Chem. 1953;8:415–459. doi: 10.1016/s0065-3233(08)60096-0. [DOI] [PubMed] [Google Scholar]
  10. Wong T. M., Cheng C. H., Li C. H. Radioimmunoreactivity and receptor-binding activity of the recombined molecule obtained by complementation of two fibrinolysin fragments of ovine prolactin. Proc Natl Acad Sci U S A. 1981 Jan;78(1):88–90. doi: 10.1073/pnas.78.1.88. [DOI] [PMC free article] [PubMed] [Google Scholar]

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