Neuropeptide-glutamic acid-isoleucine

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Contents

[edit] Description

Pro-MCH precursor [Contains: Neuropeptide-glycine-glutamic acid (NGE)(Neuropeptide G-E); Neuropeptide-glutamic acid-isoleucine (NEI)(Neuropeptide E-I); Melanin-concentrating hormone (MCH)].

[edit] Source Organism

Rattus norvegicus (Rat).

[edit] Taxomomy

Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Sciurognathi;Muroidea; Muridae; Murinae; Rattus.

[edit] Subcellular Localization

Secreted protein.

[edit] Developmental Stage

Expression is strongly increased in hypothalamus between postnatal days 12 and 20, to reach high constant values in adult.

[edit] Similarity

Belongs to the melanin-concentrating hormone family.

[edit] Post translational Modification

Pro-MCH is processed differentially in the brain and in peripheral organs producing two neuropeptides; NEI and MCH. A third peptide, NGE, may also be produced. Preferential processing in neurons by prohormone convertase 2 (PC2) generates NEI. MCH is generated in neurons of the lateral hypothalmic area by several prohormone convertases including PC1/3, PC2 and PC5/6. MCH is a cyclic peptide.

[edit] Function

NEI can influence differentiation of neuronal processes in brain neurons. Affects the content of neurofilament protein in neuritogenesis (in vitro). May also be a neuromodulatory factor. In behavioral tests, it stimulates exploration and anxiety when injected into the ventromedial nucleus. Also stimulates grooming, locomotion and rearing. May antagonize the inhibitory effect of mch on ACTH release. Reduces dopamine and dopac release in the ventromedial nucleus

[edit] GeneID

24659