7-117652875-A-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM1PM2PM5PP3_StrongPP5_Moderate

The NM_000492.4(CFTR):​c.3907A>T​(p.Asn1303Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.000000692 in 1,444,500 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N1303I) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CFTR
NM_000492.4 missense

Scores

14
4
1

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 6.61
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 Pathogenic. Variant got 12 ACMG points.

PM1
In a helix (size 4) in uniprot entity CFTR_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_000492.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr7-117652876-A-T is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.984
PP5
Variant 7-117652875-A-T is Pathogenic according to our data. Variant chr7-117652875-A-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1685264.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CFTRNM_000492.4 linkuse as main transcriptc.3907A>T p.Asn1303Tyr missense_variant 24/27 ENST00000003084.11 NP_000483.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CFTRENST00000003084.11 linkuse as main transcriptc.3907A>T p.Asn1303Tyr missense_variant 24/271 NM_000492.4 ENSP00000003084 P2P13569-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249486
Hom.:
0
AF XY:
0.00000742
AC XY:
1
AN XY:
134738
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:
0.0000331
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.92e-7
AC:
1
AN:
1444500
Hom.:
0
Cov.:
26
AF XY:
0.00000139
AC XY:
1
AN XY:
719456
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:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Hereditary pancreatitis Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingMendelicsMay 04, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.81
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.45
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.96
D;D;.
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Pathogenic
0.41
D
MetaRNN
Pathogenic
0.98
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.0
M;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.68
T
PROVEAN
Pathogenic
-6.8
D;D;.
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
D;D;.
Sift4G
Pathogenic
0.0
D;D;.
Polyphen
1.0
D;.;.
Vest4
0.96
MutPred
0.91
Loss of ubiquitination at K1302 (P = 0.0428);.;.;
MVP
1.0
MPC
0.016
ClinPred
1.0
D
GERP RS
5.2
Varity_R
0.97
gMVP
0.97

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: rs121909042; hg19: chr7-117292929; API