7-117591968-A-T

Position:

chr7-117591968-A-T

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong

The NM_000492.4(CFTR):c.1801A>T(p.Ile601Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000752 in 1,595,260 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 Pathogenic (★★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

CFTR
NM_000492.4 missense

Scores

Clinical Significance

Pathogenic reviewed by expert panel P:3O:1

Conservation

PhyloP100: 4.38

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1

In a domain ABC transporter 1 (size 223) in uniprot entity CFTR_HUMAN there are 54 pathogenic changes around while only 9 benign (86%) in NM_000492.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.981

PP5

Variant 7-117591968-A-T is Pathogenic according to our data. Variant chr7-117591968-A-T is described in ClinVar as [Pathogenic]. Clinvar id is 53391.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr7-117591968-A-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CFTR	NM_000492.4 linkuse as main transcript	c.1801A>T	p.Ile601Phe	missense_variant	14/27	ENST00000003084.11	NP_000483.3	P13569-1A0A024R730

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CFTR	ENST00000003084.11 linkuse as main transcript	c.1801A>T	p.Ile601Phe	missense_variant	14/27	1	NM_000492.4	ENSP00000003084.6		P13569-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152156

Hom.:

Cov.:

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000429

AC:

AN:

233316

Hom.:

AF XY:

0.00

AC XY:

AN XY:

126496

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:

0.00000920

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000693

AC:

AN:

1442986

Hom.:

Cov.:

AF XY:

0.00000558

AC XY:

AN XY:

717260

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:

0.00000904

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74450

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:

0.0000294

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:3Other:1

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Cystic fibrosis

Pathogenic:2Other:1

Likely pathogenic, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	May 20, 2021	Variant summary: CFTR c.1801A>T (p.Ile601Phe) results in a non-conservative amino acid change located in the ABC transporter-like of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4.3e-06 in 233316 control chromosomes. c.1801A>T has been reported in the literature in individuals affected with CFTR-Related Diseases (CFTR-RD), including at least one patient with pancreatic sufficient CF and one patient with CBAVD (Vankeerberghen_1998, Steiner_2011). The variant has also been reported in 5 patients in the CFTR2 database, and was reported in the CFTR-France database in 2 patients with CF and 4 patients with CFTR-RD. At least one functional study reported that the variant gave rise to a protein that was aberrantly processed, resulting in the absence of sufficient CFTR protein at the cell surface (Vankeerberghen_1998). The CFTR2 and CFTR-France databases both report the variant as pathogenic for CF and/or CFTR-RD. However, the working group of the French CF society cited the variant in recently published guidelines as "a mutation of unproved or uncertain clinical relevance" (Sermet-Gaudelus_2017). Based on the evidence outlined above, the variant was classified as likely pathogenic. -
not provided, no classification provided	literature only	ClinVar Staff, National Center for Biotechnology Information (NCBI)	-	- -
Pathogenic, reviewed by expert panel	research	CFTR2	Jan 10, 2020	- -

Cystic fibrosis;C5924204:CFTR-related disorder

Pathogenic:1

Pathogenic, criteria provided, single submitter

curation

CFTR-France

Jan 29, 2018

when the variant is in trans with another CF-causing variation, can either result in CF or in a CFTR-RD -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.49

BayesDel_addAF

Pathogenic

0.43

BayesDel_noAF

Pathogenic

0.38

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.87

D;.;T;.

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.97

D;D;D;D

M_CAP

Pathogenic

0.61

MetaRNN

Pathogenic

0.98

D;D;D;D

MetaSVM

Pathogenic

0.85

MutationAssessor

Uncertain

2.5

M;.;.;.

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-3.7

D;.;D;.

REVEL

Pathogenic

0.91

Sift

Uncertain

0.0020

D;.;D;.

Sift4G

Uncertain

0.0090

D;.;D;.

Polyphen

1.0

D;.;.;.

Vest4

0.73

MutPred

0.91

Loss of MoRF binding (P = 0.1281);.;.;.;

MVP

1.0

MPC

0.0047

ClinPred

0.98

GERP RS

5.5

Varity_R

0.84

gMVP

0.97

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.23

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.23

Position offset: -34

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over