CFTR-France

Variant details:
Name	NM_000492.4:c.254G>T
Protein name	NP_000483.3:p.(Gly85Val)
Genomic name (hg19)	chr7:g.117149177G>T UCSC gnomAD
#Exon/intron	exon 3
Legacy Name	G85V
Class	disease-causing
Subclass	CF-causing
WT sequence	TTTTTCTGGAGATTTATGTTCTATG G AATCTTTTTATATTTAGGGGTAAGG
Mutant sequence	TTTTTCTGGAGATTTATGTTCTATG T AATCTTTTTATATTTAGGGGTAAGG

External sources:
	Not found	dbSNP rs75961395

Reference	PMID	Splicing	mRNA level	Maturation	Localization	Channel fonction (Cl-)	Bicarbonate
Gene et al, 2008	18306312			✓	✓	✓

Pathogenicity predictions:
AGVGD	MAPP	SIFT	PPH2
C0	0.00027	0.03	0.995
VUS1	VUS5	VUS5	VUS5

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

No patient found in CFTR-NGS catalogue

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

TOTAL NUMBER OF PATIENTS	3
CF	2
CFTR-RD	1 CBAVD 1

Detailed genotypes:
Phenotype	Patient ID	Variant status	Additional variants
CF	2857	heterozygote	CF-causing - Trans
CF	4553	heterozygote	CF-causing - Trans
CBAVD	4271	heterozygote	varying clinical consequence- 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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