rs77010898

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_000492.4(CFTR):​c.3846G>A​(p.Trp1282*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000261 in 1,613,376 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00025 ( 1 hom. )

Consequence

CFTR
NM_000492.4 stop_gained

Scores

5
1

Clinical Significance

Pathogenic practice guideline P:35O:3

Conservation

PhyloP100: 9.42

Publications

631 publications found
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]
CFTR Gene-Disease associations (from GenCC):
  • cystic fibrosis
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, Orphanet
  • congenital bilateral absence of vas deferens
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary chronic pancreatitis
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 7-117642566-G-A is Pathogenic according to our data. Variant chr7-117642566-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 7129.Status of the report is practice_guideline, 4 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000492.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CFTR
NM_000492.4
MANE Select
c.3846G>Ap.Trp1282*
stop_gained
Exon 23 of 27NP_000483.3
CFTR-AS2
NR_199597.1
n.65+4785C>T
intron
N/A

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CFTR
ENST00000003084.11
TSL:1 MANE Select
c.3846G>Ap.Trp1282*
stop_gained
Exon 23 of 27ENSP00000003084.6
CFTR
ENST00000699602.1
c.3840G>Ap.Trp1280*
stop_gained
Exon 23 of 27ENSP00000514471.1
CFTR
ENST00000889206.1
c.3759G>Ap.Trp1253*
stop_gained
Exon 22 of 26ENSP00000559265.1

Frequencies

GnomAD3 genomes
AF:
0.000329
AC:
50
AN:
152130
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.0109
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.000959
GnomAD2 exomes
AF:
0.000458
AC:
115
AN:
250892
AF XY:
0.000442
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00953
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000254
AC:
371
AN:
1461246
Hom.:
1
Cov.:
32
AF XY:
0.000268
AC XY:
195
AN XY:
726928
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33454
American (AMR)
AF:
0.0000224
AC:
1
AN:
44676
Ashkenazi Jewish (ASJ)
AF:
0.00923
AC:
241
AN:
26106
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39598
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000729
AC:
81
AN:
1111644
Other (OTH)
AF:
0.000762
AC:
46
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
21
43
64
86
107
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000329
AC:
50
AN:
152130
Hom.:
0
Cov.:
33
AF XY:
0.000363
AC XY:
27
AN XY:
74304
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41428
American (AMR)
AF:
0.0000656
AC:
1
AN:
15252
Ashkenazi Jewish (ASJ)
AF:
0.0109
AC:
38
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000132
AC:
9
AN:
68028
Other (OTH)
AF:
0.000959
AC:
2
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000392
Hom.:
0
Bravo
AF:
0.000321
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.000379
AC:
46
EpiCase
AF:
0.000218
EpiControl
AF:
0.000593

ClinVar

ClinVar submissions as Germline
Significance:Pathogenic
Revision:practice guideline
View on ClinVar
Pathogenic
VUS
Benign
Condition
17
-
-
Cystic fibrosis (19)
10
-
-
not provided (10)
2
-
-
CFTR-related disorder (2)
1
-
-
Bronchiectasis with or without elevated sweat chloride 1 (1)
1
-
-
Cystic fibrosis diagnostic test (1)
1
-
-
Cystic fibrosis;C0238339:Hereditary pancreatitis;C0403814:Congenital bilateral aplasia of vas deferens from CFTR mutation;C2749757:Bronchiectasis with or without elevated sweat chloride 1 (1)
1
-
-
Cystic fibrosis;C0403814:Congenital bilateral aplasia of vas deferens from CFTR mutation (2)
1
-
-
Hereditary pancreatitis (1)
1
-
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.66
CADD
Pathogenic
46
DANN
Uncertain
1.0
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.99
D
PhyloP100
9.4
Vest4
0.94
GERP RS
5.3
Mutation Taster
=0/200
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs77010898; hg19: chr7-117282620; COSMIC: COSV99069637; API