Hexestrol diazirine photoaffinity labeling reagent for the estrogen receptor.
Hexestrol diazirine photoaffinity labeling reagent for the estrogen receptor.
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Hexestrol diazirine 雌激素受体光亲和标记试剂。
DOI:
10.1021/bc00026a006
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发表时间:
1994
影响因子:
4.7
通讯作者:
Katzenellenbogen,JA
中科院分区:
文献类型:
--
作者:
Bergmann,KE;Carlson,KE;Katzenellenbogen,JA
3-Azibutyl (2fi*, 3S*)-2, 3-bis (4-hydroxyphenyl) pentyl sulfide (1), a photoaffinity labeling reagent for the estrogen receptor (ER), has been prepared in unlabeled and in high specific activity tritium-labeled form (32 Ci/mmol) and has been shown toundergo selective and efficient photocovalent attachment to rat uterine ER. Diazirine 1 demonstrates high binding affinity for ER, as determined by both a competitive binding assay and a direct binding assay (relative binding: estradiol= 100;(1)= 17. K¿. estradiol= 0.19 nM;(1)= 0.98 nM, respectively). It is efficient in site-specific photoinactivation of ER, reaching the level of 31% after 5 min of irradiation at> 315 nm. The tritium-labeled diazirine [3H]-1 undergoes specific photocovalent attachment to ER with an attachment efficiency of 29% and a selectivity of 90%. Both of these values are quite high for a photoaffinity reagent. SDS-polyacrylamide gel electrophoretic analysis of the photolabeled proteins shows specific labeling of a major species at Mr 65 000, the same species that is labeled by [3H] tamoxifen aziridine, a well-characterized affinity label for ER. Hexestrol diazirine 1 is the first carbene-generating photoaffinity label that covalently labels ER with high efficiency and selectivity, and it should be useful in further studies on the hormone-binding domain of ER.
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影响因子:
2.9
作者:
K. Carlson;L. H. Sun;J. Katzenellenbogen
通讯作者:
K. Carlson;L. H. Sun;J. Katzenellenbogen
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
R. D. Bindal;K. Carlson;G. Reiner;J. Katzenellenbogen
通讯作者:
J. Katzenellenbogen
影响因子:
5.2
作者:
J. Katzenellenbogen;M. Kilbourn;K. Carlson
通讯作者:
K. Carlson
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
J. V. Ceunebroeck;J. Krebs;I. Hanssens;F. V. Cauwelaert
通讯作者:
F. V. Cauwelaert
影响因子:
11.4
作者:
N. Cridland;C. Wright;E. A. Mckenzie;J. Knowland
通讯作者:
J. Knowland