Variant NM_000492.4:c.1209G>C


Variant details:
Name NM_000492.4:c.1209G>C
Protein name NP_000483.3:p.(Glu403Asp)
Genomic name (hg19) chr7:g.117182162G>C    UCSC    
#Exon/intron exon 9
Legacy Name E403D
Class disease-causing
Subclass CF-causing
WT sequence AGAATGTAACAGCCTTCTGGGAGGA G GTCAGAATTTTTAAAAAATTGTTTG
Mutant sequence AGAATGTAACAGCCTTCTGGGAGGA C GTCAGAATTTTTAAAAAATTGTTTG

Other databases:

Not found		dbSNP
rs397508177



Pathogenicity predictors:

Functional studies:


Reference PMID Splicing mRNA level Maturation Localization Channel fonction (Cl-) Bicarbonate
Bergougnoux et al, 2022 36567205 ✓ ✓ ✓ ✓ ✓


« ✓ » indicates the type of analysis performed and not the results


Response to modulators:


Modulator FDA approval EMA approval in vitro / ex vivo data clinical data
IVAnononono
TEZ-IVA yesnoyesno
ELX-TEZ-IVA yesnoyesno


clinical and functional data are provided by Vertex


No patient found in CFTR-NGS catalogue


4 patients carrying this variant are reported in CFTR-France:

TOTAL NUMBER OF PATIENTS 4
CF 3
Pending (NBS) 1




Color code:   non disease-causing <   likely benign <   VUS <   likely pathogenic <   disease-causing

Detailed genotypes:
Phenotype Patient ID Variant status Additional variants
CF 2333heterozygoteCF-causing- Undef
CF 2478heterozygoteCF-causing- Undef
CF 2950heterozygoteCF-causing - Trans
Pending (NBS) 4644heterozygotevarying clinical consequence- Undef


Color code:   non disease-causing <   likely benign <   VUS <   likely pathogenic <   disease-causing



            CFTR variants are clustered into five groups:
  • CF-causing: when in trans with another CF-causing mutation, will result in CF.
  • CFTR-RD causing: when in trans with a CF-causing mutation, will result in CFTR-related disorders (CFTR-RD) such as chronic pancreatitis, bronchiectasis, CRS-NP (chronic rhinosinusitis with or without nasal polyposis) or CBAVD (congenital absence of vas deferens), according to Bombieri C et al., 2011.
  • Varying clinical consequence: when in trans with another CF-causing mutation, can either result in CF or in a CFTR-RD.
  • Non disease-causing: when in trans with a CF-causing mutation, will not cause CF, nor CFTR-RD.
  • VUS (Variant of unknown clinical significance): unclassified because of insufficient data.



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