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XB-ART-22492
Biochem Biophys Res Commun 1993 Jun 15;1932:711-7. doi: 10.1006/bbrc.1993.1683.
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Cloning and sequencing of goldfish activin subunit genes: strong structural conservation during vertebrate evolution.

Ge W , Gallin WJ , Strobeck C , Peter RE .


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Inhibin and activin are structurally related dimeric peptides sharing two distinct but related subunits, beta A and beta B. By using polymerase chain reaction (PCR), we have cloned and sequenced activin beta A and beta B genes encoding the mature region of the peptides from the goldfish genomic DNA. A single form of beta A and two forms of beta B subunits were found. There is high identity with mammalian counterparts; the goldfish beta A subunit has 78% protein sequence identity with human beta A subunit, and the two beta B subunits have more than 94% sequence identity with human beta B subunit. This is the first demonstration of the activin family of peptides in the fishes.

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Species referenced: Xenopus
Genes referenced: inhbb