Neurophysin

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Function

Neurophysins are carrier proteins which transport hormones from the hypothalamus to the posterior pituitary gland[1].

  • Neurophysin-1 transports oxytocin.
  • Neurophysin-2 transports vasopressin.
  • Oxytocin is used to start labor and increase its speed.
  • Vasopressin functions to retain water in the body and to constrict blood vessels.

Disease

Mutations in neurophysin-2 are associated with familial diabetes[2].

Structural highlights

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Neurophysin-2 (green and cyan) complex with oxytocin (magenta and salmon) (PDB code 1npo)

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3D Structures of neurophysin3D Structures of neurophysin

Updated on 13-August-2018

ReferencesReferences

  1. Acher R, Chauvet J. Structure, processing and evolution of the neurohypophysial hormone-neurophysin precursors. Biochimie. 1988 Sep;70(9):1197-207. PMID:3147712
  2. Nagasaki H, Ito M, Yuasa H, Saito H, Fukase M, Hamada K, Ishikawa E, Katakami H, Oiso Y. Two novel mutations in the coding region for neurophysin-II associated with familial central diabetes insipidus. J Clin Endocrinol Metab. 1995 Apr;80(4):1352-6. PMID:7714110 doi:http://dx.doi.org/10.1210/jcem.80.4.7714110

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman