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Androgen binding proteins in Cochliobolus lunatusKastelic-Suhadolc, Tatjana, 1935- ; Lenasi, Helena, 1945-Testosterone and 4-androstene-3,17-dione (androstenedione) binding proteins were found in the cytosol of Cochliobolus lunatus, a filamentous fungus. The maximal androgen binding occurred by 120 min ... at 0°C. Androgen binding proteins were degraded by protease treatment and at high temperature. The mean ▫$K_d$▫ determined for testosterone binding protein (TBP) by Scatchard analysis was 4.5 nM and the maximum capacity ▫$B_{max}$▫ was 120 fmol/mg protein; for androstenedione binding protein (ABP) the ▫$K_d$▫ was 8 nM and ▫$B_{max}$▫ was 390 fmol/mg protein. Steroid binding specificity for TBP, in order of decreasing affinity, was the following: androstenedione, progesterone, dihydrotestosterone, 17 ▫$\beta$▫-estradiol and estrone. The same order was found for ABP.Source: FEMS microbiology letters. - ISSN 0378-1097 (Vol. 108, iss. 1, 1993, str. 121-125)Type of material - article, component partPublish date - 1993Language - englishCOBISS.SI-ID - 1556953
Author
Kastelic-Suhadolc, Tatjana, 1935- |
Lenasi, Helena, 1945-
Topics
Androgen-binding proteins |
Metabolism |
Ascomycetes |
Metabolism |
Androstenedione |
Metabolism |
Cytosol |
Metabolism |
Kinetics |
Steroids |
Metabolism |
Testosterone |
Metabolism |
fungi |
Cochliobolus lunatus |
steroid binding protein |
androgen
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Kastelic-Suhadolc, Tatjana, 1935- | 01523 |
Lenasi, Helena, 1945- | 02934 |
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