Compositions of hormonally active human and porcine inhibin containing an .alpha. chain and 62 chain
First Claim
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1. A composition comprising hormonally active human inhibin as a product of recombinant host cell expression, the human inhibin containing an α
- chain and a β
chain wherein the α
chain has the amino acid sequence ##STR4## and the β
chain is selected from the β
A chain sequence ##STR5## or the β
B chain sequence ##STR6## and hormonally active, substantially homologous amino acid sequence variants of said human inhibin other than porcine inhibin.
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Abstract
DNA encoding the prepro inhibin α and β chains has been isolated. This DNA is ligated into expression vectors and used to transform host cells for the preparation of inhibin or activin. Also provided are prohormone domains and other inhibin α or β chain derivatives having therapeutic or diagnostic interest. The compositions provided herein are useful in the manipulation of fertility in animals.
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Citations
24 Claims
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1. A composition comprising hormonally active human inhibin as a product of recombinant host cell expression, the human inhibin containing an α
- chain and a β
chain wherein the α
chain has the amino acid sequence ##STR4## and the β
chain is selected from the β
A chain sequence ##STR5## or the β
B chain sequence ##STR6## and hormonally active, substantially homologous amino acid sequence variants of said human inhibin other than porcine inhibin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- chain and a β
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10. A composition comprising porcine inhibin as a product of recombinant host cell expression, the porcine inhibin containing an α
- chain and a β
chain wherein the α
chain has the amino acid sequence ##STR7## and the β
chain is selected from the β
A chain sequence ##STR8## or the β
B chain sequence ##STR9## and hormonally active, substantially homologous amino acid sequence variants of said porcine inhibin other than human inhibin. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
- chain and a β
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19. A composition free of human inhibin α
- chain comprising a homodimer of a human inhibin β
chain having the amino acid sequence ##STR10## - View Dependent Claims (22)
- chain comprising a homodimer of a human inhibin β
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20. A composition free of human inhibin α
- chain comprising a homodimer of a human inhibin β
chain having the amino acid sequence ##STR11## - View Dependent Claims (23)
- chain comprising a homodimer of a human inhibin β
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21. A composition free of human inhibin α
- chain comprising a heterodimer of human inhibin β
chains having the amino acid sequence ##STR12## and ##STR13## - View Dependent Claims (24)
- chain comprising a heterodimer of human inhibin β
Specification