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Merck
CN

G1674

Sigma-Aldrich

Gliadorphin-7

Synonym(s):

α/β-Gliadin (43-49), GD-7, gluteomorphin, Prolamin (43-49)

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About This Item

UNSPSC Code:
12352200
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biological source

wheat (gluten)

form

lyophilized powder

color

white

solubility

water, double-distilled: soluble

storage temp.

−20°C

Amino Acid Sequence

H-Tyr-Pro-Gln-Pro-Gln-Pro-Phe-OH

General description

Gliadorphin-7 is a peptide corresponding to amino-acids 43-49 of gliadin, a component of the gluten protein. Gliadorphin-7 is an opoid peptide formed in the body by the digestion of the gliadin. Accumulation of this peptide was found in autism, schizophrenia and cealic disease possibly due to improper proteolysis.
Gliadorphin-7 is one of the seven most commonly known gluten exorphins (GEs), which is a peptide derived from gliadin. Gliadin is a component of gluten found in wheat. Gliadorphin-7 peptide is produced upon the digestion of wheat glutens, and has an opioid-like activity. It is composed of Tyr-Pro-Gln-Pro-Gln-Pro-Phe, Gd-7.

Biochem/physiol Actions

Gliadorphin-7 can reach regions in brain by diffusion circumventricular organs. Studies in rats show that gliadorphin-7 (GD-7) infusion results in high presence of this peptide in both geniculate nuclei (GN) and the alveus hippocampus.

Physical form

Lyophilized from 0.1% aqueous TFA

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Zhongjie Sun et al.
Peptides, 24(2), 321-323 (2003-04-02)
This paper discusses the effects of gliadorphin-7 (GD-7) infusion in rats and contrasts them with those of beta-casomorphin-7 (betaC-7). Both induce FLI in a dose related fashion. Very strong expression in both geniculate nuclei (GN) and the alveus hippocampus follow
Release of wheat gluten exorphins A5 and C5 during in vitro gastrointestinal digestion of bread and pasta and their absorption through an in vitro model of intestinal epithelium.
Stuknyte, M et al
Food Research International, 72, 208-214 (2015)

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