Isolation of nine different biologically and immunologically active molecular variants of bovine follicular inhibin.
Isolation of nine different biologically and immunologically active molecular variants of bovine follicular inhibin.
复制标题
牛卵泡抑制素九种不同的生物和免疫活性分子变体的分离。
DOI:
10.1095/biolreprod53.6.1478
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发表时间:
1995
影响因子:
3.6
通讯作者:
Groome,N
中科院分区:
文献类型:
--
作者:
Good,TE;Weber,PS;Ireland,JL;Pulaski,J;Padmanabhan,V;Schneyer,AL;Lambert-Messerlian,G;Ghosh,BR;Miller,WL;Groome,N
A combination of immunoaffinity chromatography, SDS-PAGE, and electroelution was used to simultaneously isolate 0.36-4.65 mg of nine different molecular forms of inhibin (proac-29 kDa; fully processed 34 kDa; and large inhibin forms 49, 53, 58, 77, 88, 110, and> 160 kDa) from 0.675 L of bovine follicularfluid (bFF). Each inhibin form, except proac, cross-reacted with inhibin ac1-26-and pA82" 4-subunitdirected antibodies during immunoblot analysis. Proac cross-reacted only with a-subunit antibodies. The inhibin forms consisted of 22-, 29-, 49-, or 58-kDa a subunits and 17-or 58-kDa subunits. During cultures of ovine pituitary cells, a 5-ng/ml dose of each inhibin form (except proa) suppressed basal accumulation of FSH 30% to 50% but increased GnRH-induced LH release 40% to 248%. The various inhibin forms cross-reacted in a parallel fashion with standard curves generated during homologous and heterologous RIAs but with markedly different relative immunopotencies. In the RIAs, proac cross-reacted 3-to 18-fold more than the fully processed inhibin form. The fully processed and the seven different large forms of inhibin cross-reacted with different relative immunopotencies in a two-site dimer-specific ELISA. We concluded that 1) a combination of immunoaffinity extraction, SDS-PAGE, and electroelution simultaneously isolated relatively large amounts of highly enriched preparations of nine different molecular forms of immunologically and biologically active inhibin from bFF; 2) eight different dimeric forms of bovine inhibin may regulate both basal FSH and GnRH-induced LH secretion by the pituitary gland, and 3) eight or nine different molecular forms of inhibin cross-react with different relative immunopotencies in the two-site dimer-specific assay or RIAs.
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DOI:
10.1016/s0021-9258(18)61070-1
发表时间:
1987-07
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
P. Matsudaira
通讯作者:
P. Matsudaira
影响因子:
--
作者:
Vaughan,JM;Rivier,J;Corrigan,AZ;McClintock,R;Campen,CA;Jolley,D;Voglmayr,JK;Bardin,CW;Rivier,C;Vale,W
通讯作者:
Vale,W
影响因子:
4.8
作者:
Feng,ZM;Madigan,MB;Chen,CL
通讯作者:
Chen,CL
影响因子:
4.8
作者:
V. Padmanabhan;K. Leung;E. Convey
通讯作者:
E. Convey
影响因子:
--
作者:
Nigel Groome;M. Lawrence
通讯作者:
M. Lawrence