产品介绍 | Vasopressin, also known as arginine vasopressin (AVP) or antidiuretic hormone (ADH), is a posterior pituitary hormone that is synthesised in the hypothalamus. Vasopressin is synthesised as a precursor protein that consists of arginine vasopressin and two associated proteins, neurophysin 2 and the glycopeptide copeptin. Vasopressin, together with its carrier protein neurophysin II, is packaged into neurosecretory vesicles and transported axonally to the nerve endings in the neurohypophysis, where it is either stored or secreted into the bloodstream. Vasopressin acts as a growth factor by enhancing pH regulation through acid-base transport systems. It has a direct antidiuretic action on the kidney and also causes vasoconstriction of the peripheral vessels. Vasopressin can also contract smooth muscle during parturition and lactation. It also plays a role in cognition, tolerance, adaptation and complex sexual and maternal behaviour, as well as in the regulation of water excretion and cardiovascular functions. Mutations in the vasopressin precursor cause autosomal dominant neurohypophyseal diabetes insipidus (ADNDI), which is characterised by persistant thirst, polydipsia and polyuria. Function: Neurophysin 2 specifically binds vasopressin. Vasopressin has a direct antidiuretic action on the kidney, it also causes vasoconstriction of the peripheral vessels. Subcellular Location: Secreted. DISEASE: Defects in AVP are the cause of autosomal dominant neurohypophyseal diabetes insipidus (ADNDI) [MIM:125700]. ADNDI is characterized by persistent thirst, polydipsia and polyuria. The disease is transmitted in an autosomal dominant mode and appears to be largely if not completely penetrant. Defects in AVP are the cause of autosomal recessive neurohypophyseal diabetes insipidus (ARNDI) [MIM:125700]. ARNDI is characterized by persistent thirst, polydipsia and polyuria. Most mutations are hypothesized to trigger neurodegeneration via disruption of preproAVP-NPII processing. Similarity: Belongs to the vasopressin/oxytocin family. SWISS: P01185 CAS: 551 Database links:
Entrez Gene: 551 Human Omim: 192340 Human SwissProt: P01185 Human Unigene: 89648 Human Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |