rs121909045

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_000492.4(CFTR):ā€‹c.19G>Cā€‹(p.Glu7Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000479 in 1,461,682 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000048 ( 0 hom. )

Consequence

CFTR
NM_000492.4 missense

Scores

12
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.89
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_000492.4
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3291455).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CFTRNM_000492.4 linkuse as main transcriptc.19G>C p.Glu7Gln missense_variant 1/27 ENST00000003084.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CFTRENST00000003084.11 linkuse as main transcriptc.19G>C p.Glu7Gln missense_variant 1/271 NM_000492.4 P2P13569-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251108
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135734
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461682
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727146
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:
0.00000630
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Uncertain
0.032
T
BayesDel_noAF
Benign
-0.19
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T;.;.;T;.
Eigen
Uncertain
0.28
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.86
D;D;D;D;D
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.33
T;T;T;T;T
MetaSVM
Uncertain
0.011
D
MutationAssessor
Benign
1.7
L;.;.;.;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-1.5
N;.;.;N;.
REVEL
Uncertain
0.31
Sift
Uncertain
0.0050
D;.;.;D;.
Sift4G
Uncertain
0.0030
D;.;.;D;.
Polyphen
0.72
P;.;.;.;.
Vest4
0.57
MutPred
0.28
Gain of MoRF binding (P = 0.0113);Gain of MoRF binding (P = 0.0113);Gain of MoRF binding (P = 0.0113);Gain of MoRF binding (P = 0.0113);Gain of MoRF binding (P = 0.0113);
MVP
0.94
MPC
0.0041
ClinPred
0.70
D
GERP RS
4.2
Varity_R
0.45
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs121909045; hg19: chr7-117120167; API