Biological activity of bovine placental lactogen in 3T3‐F442A preadipocytes is mediated through a somatogenic receptor

FEBS Letters

Vashdi, Dorit¹  Gertler, Arieh¹  Elberg, Gerard¹  Sakal, Edna¹ 

[1] Department of Biochemistry and Human Nutrition, Faculty of Agriculture, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel

关键词: Placental lactogen;    Somatogenic receptor;    Affinity labelling;    3T3-F442A preadipocyte;   

DOI  :  10.1016/0014-5793(92)80873-F

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Bovine placental lactogen (bPL) exhibited antimitogenic differentiation-promoting, biological activity in 3T3-F442A preadipocytes, Competitive binding studies and affinity labelling revealed bPL activity to be mediated through a somatogenic type of receptor that recognizes human growth hormone (hGH) and bovine GH, but not ovine prolactin or human PL. The bioactivity of bPL was sixfold lower than that of hGH despite that bPL is binding to the somatogenic receptors with fivefold higher affinity. This discrepancy may result from the relatively low ability of bPL to induce post-receptoral effects such as receptor dimerization.

【 授权许可】

Unknown