Variant NM_000492.4:c.3874-105T>G


Variant details:
Name NM_000492.4:c.3874-105T>G
Protein name NP_000483.3:p.(=)
Genomic name (hg19) chr7:g.117292791T>G    UCSC    gnomAD
#Exon/intron intron 23
Class non disease-causing
WT sequence TGGTAAGTACATGGGTGTTTCTTAT T TTAAAATAATTTTTCTACTTGAAAT
Mutant sequence TGGTAAGTACATGGGTGTTTCTTAT G TTAAAATAATTTTTCTACTTGAAAT






External sources:

Not found
Not found		dbSNP
no rs
Not found







No patient found in CFTR-NGS catalogue


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

TOTAL NUMBER OF PATIENTS 12
Asymptomatic compound heterozygote 2
CF 3
CFTR-RD4
  • Bronchiectasis  1
  • CBAVD  2
  • Other  1
Pending (NBS) 2
Pending non-CF 1



Detailed genotypes:
Phenotype Patient ID Variant status Additional variants
Pending (NBS) 4407heterozygoteCF-causing- Undef
varying clinical consequence- Undef
Pending (NBS) 4508heterozygoteCF-causing- Undef
varying clinical consequence- Undef
CBAVD 4419heterozygoteCF-causing- Undef
varying clinical consequence- Undef
CBAVD 4524heterozygoteCF-causing- Undef
VUS1- Undef
Bronchiectasis 4474heterozygotevarying clinical consequence- Undef
CF 4502heterozygoteCF-causing- Undef
varying clinical consequence- Undef
CF 4499heterozygoteCF-causing- Undef
varying clinical consequence- Undef
CF 4483heterozygoteCF-causing- Undef
varying clinical consequence- Undef
Pending non-CF 4515heterozygotevarying clinical consequence- Undef
varying clinical consequence- Undef
Other 4520heterozygoteVUS5- Undef
CF-causing- Undef
Asymptomatic compound heterozygote 4523heterozygoteCFTR-RD-causing- Undef
varying clinical consequence- Undef
Asymptomatic compound heterozygote 4522heterozygoteCF-causing- Undef
VUS1- Undef


Color code:   non disease-causing <   VUS1 <   VUS2 <   VUS3 <   VUS4 <   VUS5 <   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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