Evolutionary specificity of hydrins, new hydroosmotic neuropeptides: occurrence of hydrin 2 (vasotocinyl‐Gly) in the toad Bufo marinus but not in the viper Vipera aspis

FEBS Letters

Rouillé, Y.¹  Acher, R.¹  Chauvet, M.T.¹  Michel, G.¹  Chauvet, J.¹ 

[1] Laboratory of Biological Chemistry, University of Paris VI, 96, Boulevard Raspail, 75006 Paris, France

关键词: Hydrin;    Neuropeptide;    Provasotocin maturation;    Differential processing;    Neurohypophysial hormone;    Bufo marinus;    Vipera aspis;   

DOI  :  10.1016/0014-5793(90)80783-F

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Hydrin 2 (vasotocinyl-Gly), a hydroosmotic peptide resulting from differential processing of provasotocin and recently identified in frog neurohypophysis, has been looked for in the pituitary gland of an exotic toad (Bufo marinus) and of a reptile (Vipera aspis). Hydrin 2 has been found in the amphibian but not in the reptile. This result confirms the evolutionary specificity of hydrin 2 that has been identified only in frogs and toads but not in birds and reptiles. Occurrence of hydrin 2 is explained by its regulatory function on the water permeability of the skin of anurans.

【 授权许可】

Unknown