[Heterogeneity of pituitary gonadotropin from sturgeons].
Identifieur interne : 000838 ( Ncbi/Curation ); précédent : 000837; suivant : 000839[Heterogeneity of pituitary gonadotropin from sturgeons].
Auteurs : B F Goncharov ; A A Kuznetsov ; E. Burzava-ZherarSource :
- Biokhimiia (Moscow, Russia) [ 0320-9725 ] ; 1980.
English descriptors
- KwdEn :
- MESH :
- chemical , isolation & purification : Gonadotropins, Pituitary.
- chemical , pharmacology : Gonadotropins, Pituitary.
- analysis : Pituitary Gland.
- drug effects : Oocytes.
- Animals, Biological Assay, Female, Fishes, Molecular Weight.
Abstract
A highly purified preparation of the pituitary gonadotropin of a chondrostean fish, sevryuga (Acipenser stellatus Pall.) has been shown to be homogeneous by criteria of molecular weight, sedimentation coefficient and by N-terminal amino acid analysis. On the contrary, polyacrylamide gel electrophoresis and isoelectric fucusing have revealed a marked heterogeneity of the hormone preparation. The determination of gonadotropic activity (in vitro amphibian oocyte maturation test) has shown the similar specific activities of the differently charged hormone molecules.
PubMed: 7378484
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pubmed:7378484Le document en format XML
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