Aspartylglycosamine is a biomarker for NGLY1-CDDG, a congenital disorder of deglycosylation
NGLY1-CDDG is a congenital disorder of deglycosylation caused by a defective peptide:N-glycanase (PNG). To date, all but one of the reported patients have been diagnosed through whole-exome or whole-genome sequencing, as no biochemical marker was available to identify this disease in patients.
Berthil Prinsen +2 more
exaly +7 more sources
An induced pluripotent stem cell-derived NMJ platform for study of the NGLY1-Congenital Disorder of Deglycosylation. [PDF]
AbstractThere are many neurological rare diseases where animal models have proven inadequate or do not currently exist. NGLY1 deficiency, a congenital disorder of deglycosylation, is a rare disease that predominantly affects motor control, especially control of neuromuscular action.
Sasserath T +15 more
europepmc +3 more sources
Structural and Functional Characterization of N-Glycanase-1 Pathogenic Variants [PDF]
NGLY1 deficiency is a congenital disorder of deglycosylation, caused by pathogenic variants of the NGLY1 gene. It manifests as global developmental delay, hypo- or alacrima, hypotonia, and a primarily hyperkinetic movement disorder.
Antje Banning +6 more
doaj +2 more sources
N‐glycanase 1, encoded by NGLY1, catalyzes the deglycosylation of misfolded N‐linked glycoproteins. Using whole‐genome and ‐exome sequencing, we identified 6 cases with mutations in NGLY1. The patients show developmental delay, seizures, peripheral neuropathy, abnormal liver function, and absent tears.
Hamed Jafar-Nejad +2 more
exaly +2 more sources
Functional prediction of the potential NGLY1 mutations associated with rare disease CDG [PDF]
Genetic diseases are currently diagnosed by functional mutations. However, only some mutations are associated with disease. It is necessary to establish a quick prediction model for clinical screening. Pathogenic mutations in NGLY1 cause a rare autosomal
Shuying Yuan +10 more
doaj +2 more sources
Editorial: Inherited Protein Glycosylation Defects in Humans [PDF]
Aleksandra Jezela-Stanek +2 more
doaj +2 more sources
Impacts of N-glycanase1 (NGLY1) Down Regulation on the Function of Mitochondria. [PDF]
ABSTRACT N‐glycanase 1 (NGLY1) is involved in intracellular misfolded protein degradation, releasing a de‐N‐glycosylated protein and a complete N‐oligosaccharide. Enzymatic defects in NGLY1 may cause NGLY1‐related congenital disorder of deglycosylation (NGLY1‐CDDG). NGLY1 patients exhibit cognition and coordination defects, and the regulatory impact of
Chen Y +10 more
europepmc +2 more sources
Impaired Proteostasis is Linked to Neurological Pathology in a Zebrafish NGLY1 Deficiency Model. [PDF]
ABSTRACT NGLY1 is a key enzyme in the process of misfolded protein deglycosylation. Bi‐allelic pathogenic variants in NGLY1 cause N‐glycanase deficiency, also known as congenital disorder of deglycosylation (NGLY1‐CDDG). This rare and multisystem autosomal recessive disorder is linked to a variable phenotype of global developmental delay, neuromuscular
Mesika A +8 more
europepmc +2 more sources
NGLY1 Deficiency: A Rare Newly Described Condition with a Typical Presentation
NGLY1 deficiency is the first recognized autosomal recessive disorder of N-linked deglycosylation (NGLY1-CDDG). This severe multisystemic disease is still poorly known and, to date, most cases have been diagnosed through whole exome or genome sequencing.
Ivana Dabaj +12 more
doaj +1 more source
Clinical and Molecular Features of Patients With Congenital Disorders of Glycosylation in Japan. [PDF]
ABSTRACT Congenital disorders of glycosylation (CDG) are a heterogeneous group of diseases caused by defects in various steps of the glycosylation pathway. There are over 200 known human glycosylation‐related disorders. Many of these defects lead to multisystemic manifestations, commonly involving the central nervous system, with symptoms ranging from ...
Okamoto N, Kadoya M, Wada Y.
europepmc +2 more sources

