Neurophysins
Neurophysins are
Neurophysins are also secreted out of the posterior pituitary hypothalamus, each carrying their respective associated passenger hormone. When the posterior pituitary hypothalamus secretes vasopressin and its neurophysin carrier, it also secretes a glycopeptide.
There are two types:
- Neurophysin I - Oxytocin
- Neurophysin II - Vasopressin (Also known as "antidiuretic hormone" or ADH)
Biosynthesis of Neurophysins
These proteins are synthesized in the cell bodies of the supraoptic and paraventricular regions of the hypothalamus.
The disulfide-rich neurophysin protein is suggested to be congruent with the synthesis of insulin in which a precursor molecule of higher molecular weight is proteolytically cleaved and forms disulfide linkages.[2]
Although not enough data has been obtained, it is hypothesized that there is a common precursor molecule between neurophysin and the two hormones it stabilizes.[2]
Structure
Neurophysins are acidic proteins with a molecular weight of approximately 10,000 Da that are rich in
See also
References
- ^ Airaodion AI, Ekenjoku JA, Ogbuagu EO, Okoroukwu VN, Ogbuagu U (2019-10-22). "Carica papaya Leaves Might Cause Miscarriage". Asian Research Journal of Gynaecology and Obstetrics: 1–9.
- ^ PMID 382985.
- PMID 382985.
- PMID 7204368.
External links
- Neurophysins at the U.S. National Library of Medicine Medical Subject Headings (MeSH)