chr7-117479807-G-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000446805.2(CFTR):​c.-191+113G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00171 in 547,046 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0048 ( 7 hom., cov: 31)
Exomes 𝑓: 0.00052 ( 1 hom. )

Consequence

CFTR
ENST00000446805.2 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.817
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 7-117479807-G-C is Benign according to our data. Variant chr7-117479807-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 237853.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0048 (730/152104) while in subpopulation AFR AF= 0.0167 (691/41496). AF 95% confidence interval is 0.0156. There are 7 homozygotes in gnomad4. There are 344 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
use as main transcriptn.117479807G>C intergenic_region

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CFTRENST00000546407.1 linkuse as main transcriptn.166+3999G>C intron_variant 1
CFTRENST00000673785.1 linkuse as main transcriptc.-406+13976G>C intron_variant ENSP00000501235.1 A0A669KBE8
CFTRENST00000446805.2 linkuse as main transcriptc.-191+113G>C intron_variant 4 ENSP00000417012.1 C9J6L5

Frequencies

GnomAD3 genomes
AF:
0.00481
AC:
731
AN:
151986
Hom.:
7
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0167
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00183
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:
0.00336
GnomAD4 exome
AF:
0.000517
AC:
204
AN:
394942
Hom.:
1
Cov.:
0
AF XY:
0.000428
AC XY:
89
AN XY:
207922
show subpopulations
Gnomad4 AFR exome
AF:
0.0144
Gnomad4 AMR exome
AF:
0.000713
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000227
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000427
Gnomad4 OTH exome
AF:
0.00115
GnomAD4 genome
AF:
0.00480
AC:
730
AN:
152104
Hom.:
7
Cov.:
31
AF XY:
0.00463
AC XY:
344
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.0167
Gnomad4 AMR
AF:
0.00183
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:
0.00332
Alfa
AF:
0.000531
Hom.:
0
Bravo
AF:
0.00565
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 20, 2017- -
Cystic fibrosis Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 12, 2023- -
Hereditary pancreatitis Benign:1
Likely benign, criteria provided, single submittercurationSema4, Sema4May 30, 2021- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoJul 25, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
12
DANN
Benign
0.75

Splicing

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: rs139688774; hg19: chr7-117119861; API