7-117592631-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate

The NM_000492.4(CFTR):​c.2464G>A​(p.Glu822Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000721 in 1,387,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

CFTR
NM_000492.4 missense

Scores

8
6
5

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1O:1

Conservation

PhyloP100: 9.04
Variant links:
Genes affected
CFTR (HGNC:1884): (CF transmembrane conductance regulator) This gene encodes a member of the ATP-binding cassette (ABC) transporter superfamily. The encoded protein functions as a chloride channel, making it unique among members of this protein family, and controls ion and water secretion and absorption in epithelial tissues. Channel activation is mediated by cycles of regulatory domain phosphorylation, ATP-binding by the nucleotide-binding domains, and ATP hydrolysis. Mutations in this gene cause cystic fibrosis, the most common lethal genetic disorder in populations of Northern European descent. The most frequently occurring mutation in cystic fibrosis, DeltaF508, results in impaired folding and trafficking of the encoded protein. Multiple pseudogenes have been identified in the human genome. [provided by RefSeq, Aug 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.912
PP5
Variant 7-117592631-G-A is Pathogenic according to our data. Variant chr7-117592631-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 53491.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CFTRNM_000492.4 linkuse as main transcriptc.2464G>A p.Glu822Lys missense_variant 14/27 ENST00000003084.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CFTRENST00000003084.11 linkuse as main transcriptc.2464G>A p.Glu822Lys missense_variant 14/271 NM_000492.4 P2P13569-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
7.21e-7
AC:
1
AN:
1387648
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
685654
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.23e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Cystic fibrosis Pathogenic:1Other:1
Likely pathogenic, criteria provided, single submittercurationInstitute of Human Genetics, University of Leipzig Medical CenterSep 05, 2022This variant was identified in 1 patient with a clinically confirmed diagnosis of cystic fibrosis. The variant was classified in the context of a project re-classifying variants in the German Cystic Fibrosis Registry (Muko.e.V.). Link: https://www.muko.info/angebote/qualitaetsmanagement/register/cf-einrichtungen/mukoweb. Criteria applied: PS3_SUP, PM2_SUP, PM3, PP3, PP4 -
not provided, no classification providedliterature onlyClinVar Staff, National Center for Biotechnology Information (NCBI)-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Pathogenic
0.40
D
BayesDel_noAF
Pathogenic
0.33
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.51
D;.;T;.
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Pathogenic
0.50
D
MetaRNN
Pathogenic
0.91
D;D;D;D
MetaSVM
Pathogenic
0.89
D
MutationAssessor
Uncertain
2.1
M;.;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.37
N;.;N;.
REVEL
Pathogenic
0.75
Sift
Benign
0.16
T;.;T;.
Sift4G
Uncertain
0.0050
D;.;D;.
Polyphen
0.80
P;.;.;.
Vest4
0.54
MutPred
0.79
Gain of ubiquitination at E822 (P = 0.0048);.;.;.;
MVP
0.99
MPC
0.0046
ClinPred
0.96
D
GERP RS
5.2
Varity_R
0.27
gMVP
0.78

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs397508378; hg19: chr7-117232685; COSMIC: COSV50063470; COSMIC: COSV50063470; API