Summary
The relationship between unbound and bound proteins prepared during labelling with colloidal gold (Au) was investigated. For this aim, labelled 125I-bovine serum albumin and 125I-rabbit immunoglobulin were employed. The procedures associated with the washing of the Au labelled proteins (i.e. albumin) had a marked influence on the dissociation of the bound ligand. This was most evident when the concentration of albumin that was used for labelling was too high (0.1 or 1.0 mg/ml Au sol). We suggest that purification of labelled proteins be conducted shortly before use so as to avoid a significant amount of dissociation during the time when the solution is coming to equilibrium.
Similar content being viewed by others
References
Ackerman GA, Wolken KW, Gelder FB (1980) Different expression of surface monosialogan glioside GMI in various hemic cell lines of normal human bone marrow. A quantitative immunocytochemical study using the cholera toxin-gold-labelled anti-cholera toxin procedure. J Histochem Cytochem 28:1334–1342
Batten TFC, Hopkins CR (1979) Use of protein A-coated colloidal gold particles for immuno-electromicroscopic localization of ACTH on ultrathin sections. Histochemistry 60:317–320
Bendayan M (1981) Use of the protein A-gold technique for the morphological study of vascular permeability. J Histochem Cytochem 28:1251–1254
Bendayan M (1981) Ultrastructural localization of nucleic acids by the use of enzyme-gold complexes. J Histochem Cytochem 29:531–541
Frens G (1972) Particle size and sol stability in metal colloids. Kollid Z Z Polym 250:736–741
Frens G (1973) Controlled nucleation for the regulation of the particle size in monodisperse gold suspensions. Nature (Phys Sci) 241:20–22
Geoghegan WD, Ackerman AG (1977) Adsorption of horseradish peroxidase, ovomucoid and anti-immunoglobulin in colloidal gold for the indirect detection of concanavalin A, wheat germ agglutinin and goat anti-human immunoglobulin G on cell surfaces at the electron microscopic level: a new method, theory and application. J Histochem Cytochem 25:1187–1200
Geoghegan WD, Scillian JJ, Ackerman GA (1978) The detection of human B lymphocytes by both light and electron microscopy utilizing collidal gold labeled anti-immunoglobulin. Immunol Commun 7:1–12
Geoghegan WD, Ambegaonka S, Calvanico NJ (1980) Passive gold agglutination. An alternative to passive hemagglutination. J Immunol Methods 34:11–21
Horisberger M, Rosset J, Bauer H (1975) Colloidal gold granules as markers for cell surface receptors in the scanning electron microscope. Experientia 31:1147–1149
Horisberger M, Rosset J (1977) Colloidal gold, a useful marker for transmission and scanning electron microscopy. J Histochem Cytochem 25:295–305
Horisberger M, Rosset J, Vonlanthen M (1978) location of lectin receptors on rat hepatocytes by transmission and scanning electron microscopy. Experientia 34:274–276
Horisberger M, Vonlanthen M (1978) Simultaneous localization of an hepatic binding protein specific for galactose and of galactose-containing receptors on rat hepatocytes. J Histochem Cytochem 26:960–966
Horisberger M, Vonlanthen M (1979) Multiple marking of cell surface receptors by gold granules: simultaneous localization of three lectin receptors on human erythrocytes. J Microse 115:97–102
Larsson L-I (1979) Simultaneous ultrastructural demonstration of multiple peptides in endocrine cells by a novel immunocytochemical method. Nature 282:743–746
Mace ML Jr, Van NT, Conn MP (1977) Electron microscopic localization of DNA-dependent RNA polymerase binding sites on DNA using enzyme immobilized on colloidal gold. Cell Biol Rep 1:527–533
Roth J, Wagner M (1977) Peroxidase and gold complexes of lectins for double labeling of surface-binding sites by electron microscopy. J Histochem Cytochem 25:1181–1184
Roth J, Bendayan M, Orci L (1978) Ultrastructural localization of intracellular antigens by the use of protein A-gold complex. J Histochem Cytochem 26:1074–1081
Roth J, Binder M (1978) Colloidal gold, ferritin and peroxidase as markers for electron microscopic double labeling lectin techniques. J Histochem Cytochem 26:163–169
Roth J, Bendayan M, Orci L (1980) FITC-protein A-gold complex for light and electron microscopic immunocytochemistry. J Histochem Cytochem 28:55–57
Roth J, Ravazzola M, Bendayan M, Orci L (1981) Application of the protein A-gold technique for electron microscopic demonstration of polypeptide hormones. Endocrinology 108:247–253
Scatchard G (1976) Surface and colloid chemistry. Harvard University Press, Cambridge, pp 213–279
Williams VR, Williams HB (1973) Bsic physical chemistry for the life sciences. WH Freeman, San Francisco, pp 328–341
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Warchol, J.B., Brelińska, R. & Herbert, D.C. Analysis of colloidal gold methods for labelling proteins. Histochemistry 76, 567–575 (1982). https://doi.org/10.1007/BF00489911
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00489911