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Abstract:

The interaction of estradiol-receptor complexes and isolated human breast tumor chromatin was studied under equilibrium conditions. The estradiol-receptor complexes bound specifically to the chromatin of hormone dependent tumors and showed a single class of binding sites with a Ka of 0.96 × 1010m-1 and a binding capacity of 1.5 pmoles/mg DNA. The binding was a temperature-dependent process and involved a "transformation" of the receptor protein. The heat-activated hormone-receptor com-plex was more active than the 8S form in the binding phenomenon. The specific interaction of estradiol-receptor complex with isolated chromatin was saturable and sensitive to conditions of temperature and ionic strength. Furthermore under optimal conditions no acceptor sites were detected in chromatin of hormone independent tumors. © 1977 Dr. W. Junk b.v. Publishers.

Registro:

Documento: Artículo
Título:Binding of estradiol receptor complexes to isolated human breast chromatin
Autor:Charreau, E.H.; Baldi, A.
Filiación:Instituto de Biologia y Medicina Experimental, Obligado 2490, Buenos Aires, 1428, Argentina
Palabras clave:albumin i 125; dna; drug receptor; estradiol receptor; radioisotope; breast; breast carcinoma; chromatin; estradiol h 3; human; normal human; rna c 14; theoretical study; Breast Neoplasms; Chromatin; DNA, Neoplasm; Estradiol; Female; Human; Kinetics; Osmolar Concentration; Receptors, Estrogen; Sodium Chloride; Temperature
Año:1977
Volumen:16
Número:2-3
Página de inicio:79
Página de fin:86
DOI: http://dx.doi.org/10.1007/BF01732047
Título revista:Molecular and Cellular Biochemistry
Título revista abreviado:Mol Cell Biochem
ISSN:03008177
CODEN:MCBIB
CAS:DNA, 9007-49-2; Chromatin; DNA, Neoplasm; Estradiol, 50-28-2; Receptors, Estrogen; Sodium Chloride, 7647-14-5
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03008177_v16_n2-3_p79_Charreau

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Citas:

---------- APA ----------
Charreau, E.H. & Baldi, A. (1977) . Binding of estradiol receptor complexes to isolated human breast chromatin. Molecular and Cellular Biochemistry, 16(2-3), 79-86.
http://dx.doi.org/10.1007/BF01732047
---------- CHICAGO ----------
Charreau, E.H., Baldi, A. "Binding of estradiol receptor complexes to isolated human breast chromatin" . Molecular and Cellular Biochemistry 16, no. 2-3 (1977) : 79-86.
http://dx.doi.org/10.1007/BF01732047
---------- MLA ----------
Charreau, E.H., Baldi, A. "Binding of estradiol receptor complexes to isolated human breast chromatin" . Molecular and Cellular Biochemistry, vol. 16, no. 2-3, 1977, pp. 79-86.
http://dx.doi.org/10.1007/BF01732047
---------- VANCOUVER ----------
Charreau, E.H., Baldi, A. Binding of estradiol receptor complexes to isolated human breast chromatin. Mol Cell Biochem. 1977;16(2-3):79-86.
http://dx.doi.org/10.1007/BF01732047