7-117627660-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The ENST00000003084.11(CFTR):​c.3607A>T​(p.Ile1203Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,370 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I1203V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CFTR
ENST00000003084.11 missense

Scores

5
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.350
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 Uncertain_significance. Variant got 2 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 13 uncertain in ENST00000003084.11
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1504355).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CFTRNM_000492.4 linkuse as main transcriptc.3607A>T p.Ile1203Phe missense_variant 22/27 ENST00000003084.11 NP_000483.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CFTRENST00000003084.11 linkuse as main transcriptc.3607A>T p.Ile1203Phe missense_variant 22/271 NM_000492.4 ENSP00000003084 P2P13569-1
ENST00000456270.1 linkuse as main transcriptn.66-11320T>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461216
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
726906
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152154
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000256
Hom.:
0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.075
BayesDel_addAF
Uncertain
0.050
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
11
DANN
Benign
0.77
DEOGEN2
Benign
0.33
T;.;.;T;.
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.25
N
LIST_S2
Uncertain
0.89
D;D;D;D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.15
T;T;T;T;T
MetaSVM
Uncertain
-0.13
T
MutationAssessor
Benign
1.2
L;.;.;.;.
MutationTaster
Benign
0.56
D;D
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-0.080
N;.;.;N;.
REVEL
Uncertain
0.38
Sift
Benign
0.66
T;.;.;T;.
Sift4G
Benign
0.64
T;.;.;T;.
Polyphen
0.024
B;.;.;.;.
Vest4
0.31
MutPred
0.54
Loss of catalytic residue at P1205 (P = 0.0306);.;.;.;.;
MVP
0.97
MPC
0.0033
ClinPred
0.27
T
GERP RS
4.3
Varity_R
0.16
gMVP
0.65

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: rs75647395; hg19: chr7-117267714; API