Cystinylglycine in plasma: diagnostic relevance for pyroglutamic acidemia, homocystinuria, and phenylketonuria.

@article{Perry1981CystinylglycineIP,
  title={Cystinylglycine in plasma: diagnostic relevance for pyroglutamic acidemia, homocystinuria, and phenylketonuria.},
  author={Thomas L. Perry and Shirley Hansen},
  journal={Clinica chimica acta; international journal of clinical chemistry},
  year={1981},
  volume={117 1},
  pages={7-12}
}
Cystinylglycine, recently identified as a normal small peptide in human plasma, has diagnostic importance for several genetically determined disorders. We found cystinylglycine absent from the plasma of a patient with pyroglutamic acidemia, and the peptide was either absent or greatly reduced in plasma from patients with homosyctinuria. In the latter disorder, a different small peptide replaced cystinylglycine. It was identified as the mixed disulfide of homocysteine and cysteinylglycine. The… CONTINUE READING

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