Novel ARG1 variants identified in a patient with arginase 1 deficiency

Abstract We report a case of a 13-year-old boy with arginase 1 deficiency carrying a new variant in ARG1. Sanger sequencing identified the compound heterozygous variants: NM_000045.4: c.365G>A (p.Trp122*)/c.820G>A (p.Asp274Asn). Although not previously reported, the p.Asp274Asn variant is pred...

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Bibliographic Details
Main Authors: Katsuyuki Yokoi, Yoko Nakajima, Toshihiro Yasui, Makoto Yoshino, Tetsushi Yoshikawa, Hiroki Kurahashi, Tetsuya Ito
Format: Article
Language:English
Published: Nature Publishing Group 2021-02-01
Series:Human Genome Variation
Online Access:https://doi.org/10.1038/s41439-021-00139-9
Description
Summary:Abstract We report a case of a 13-year-old boy with arginase 1 deficiency carrying a new variant in ARG1. Sanger sequencing identified the compound heterozygous variants: NM_000045.4: c.365G>A (p.Trp122*)/c.820G>A (p.Asp274Asn). Although not previously reported, the p.Asp274Asn variant is predicted to have strong pathogenicity because it is located in a highly conserved domain in the protein core and arginase activity in the patient was below measurement sensitivity.
ISSN:2054-345X