Variant NM_000492.4:c.2719A>G


Variant details:
Name NM_000492.4:c.2719A>G
Protein name NP_000483.3:p.(Ile907Val)
Genomic name (hg19) chr7:g.117243647A>G    UCSC    
#Exon/intron exon 17
Legacy Name 2851A/G
Class VUS
Subclass VUS
WT sequence TAGAAATAACAGCTATGCAGTGATT A TCACCAGCACCAGTTCGTATTATGT
Mutant sequence TAGAAATAACAGCTATGCAGTGATT G TCACCAGCACCAGTTCGTATTATGT

Other databases:

Not found		dbSNP
rs397508423



Pathogenicity predictors:





No patient found in CFTR-NGS catalogue


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

TOTAL NUMBER OF PATIENTS 2
Asymptomatic compound heterozygote 1
CFTR-RD1
  • CBAVD  1




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

Detailed genotypes:
Phenotype Patient ID Variant status Additional variants
CBAVD 495heterozygoteCF-causing - Cis
CFTR-RD-causing - Trans
Asymptomatic compound heterozygote 496heterozygoteCF-causing - Cis
CFTR-RD-causing - Trans


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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