rs114970273

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_144997.7(FLCN):c.872-13A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00288 in 1,613,266 control chromosomes in the GnomAD database, including 99 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.015 ( 58 hom., cov: 31)

Exomes 𝑓: 0.0016 ( 41 hom. )

Consequence

FLCN
NM_144997.7 intron

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:14

Conservation

PhyloP100: -1.52

Publications

1 publications found

Variant links:

Genes affected

FLCN (HGNC:27310): (folliculin) This gene is located within the Smith-Magenis syndrome region on chromosome 17. Mutations in this gene are associated with Birt-Hogg-Dube syndrome, which is characterized by fibrofolliculomas, renal tumors, lung cysts, and pneumothorax. Alternative splicing of this gene results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

FLCN Gene-Disease associations (from GenCC):

Birt-Hogg-Dube syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet, ClinGen
Birt-Hogg-Dube syndrome 1
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P, Ambry Genetics
familial spontaneous pneumothorax
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, Ambry Genetics
renal carcinoma
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
colorectal cancer
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

FLCN links:

ENSG00000264187 (HGNC:):

ENSG00000264187 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.9).

BP6

Variant 17-17219222-T-C is Benign according to our data. Variant chr17-17219222-T-C is described in ClinVar as Benign. ClinVar VariationId is 262549.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0507 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FLCN	NM_144997.7 link	c.872-13A>G		intron_variant	Intron 8 of 13	ENST00000285071.9	NP_659434.2

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein
FLCN	ENST00000285071.9 link	c.872-13A>G	intron_variant	Intron 8 of 13	1	NM_144997.7	ENSP00000285071.4
ENSG00000264187	ENST00000427497.3 link	n.149-168A>G	intron_variant	Intron 4 of 11	1		ENSP00000394249.3
FLCN	ENST00000577591.1 link	n.-119A>G	upstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.0153

AC:

2324

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0525

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00641

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000220

Gnomad OTH

AF:

0.0167

GnomAD2 exomes

AF:

0.00414

AC:

1038

AN:

250850

AF XY:

0.00300

show subpopulations

Gnomad AFR exome

AF:

0.0552

Gnomad AMR exome

AF:

0.00304

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000220

Gnomad OTH exome

AF:

0.000979

GnomAD4 exome

AF:

0.00159

AC:

2319

AN:

1460958

Hom.:

Cov.:

AF XY:

0.00135

AC XY:

982

AN XY:

726844

show subpopulations

African (AFR)

AF:

0.0521

AC:

1745

AN:

33478

American (AMR)

AF:

0.00311

AC:

139

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000151

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52598

Middle Eastern (MID)

AF:

0.00347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000166

AC:

185

AN:

1111914

Other (OTH)

AF:

0.00359

AC:

217

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

128

256

385

513

641

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

124

186

248

310

<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:

0.0153

AC:

2331

AN:

152308

Hom.:

Cov.:

AF XY:

0.0149

AC XY:

1113

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.0525

AC:

2182

AN:

41554

American (AMR)

AF:

0.00640

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000220

AC:

AN:

68028

Other (OTH)

AF:

0.0166

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

110

219

329

438

548

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

120

<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:

0.00590

Hom.:

Bravo

AF:

0.0166

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:14

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:4

Apr 22, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 03, 2015

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 04, 2016

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: The FLCN variant, c.872-13A>G is located at a non-conserved intronic position, not widely known to affect splicing, with 4/5 in silico programs via Alamut predicting no significant effect on splicing, although these predictions have yet to be functionally assessed. The variant of interest was observed in the large, broad control population, ExAC, with an allele frequency of 608/121210 (1/199 including 12 homozygotes), which exceeds the estimated maximum expected allele frequency for a pathogenic FLCN variant of 1/769230. The variant of interest, to our knowledge, has not been reported in affected individuals via publications. A reputable clinical laboratory cites the variant as a "VOUS," although this evaluation was done prior to the availability of the ExAC population. Therefore, taking all available lines of evidence into consideration, the variant of interest is classified as Benign. -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:3

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 01, 2017

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Birt-Hogg-Dube syndrome

Benign:3

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Birt-Hogg-Dube syndrome 1

Benign:1

Oct 23, 2024

Myriad Genetics, Inc.

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered benign. This variant is intronic and is not expected to impact mRNA splicing. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -

Familial spontaneous pneumothorax

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Colorectal cancer;C1868193:Familial spontaneous pneumothorax;CN074294:Nonpapillary renal cell carcinoma;CN375946:Birt-Hogg-Dube syndrome 1

Benign:1

Aug 19, 2021

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome

Benign:1

Feb 24, 2020

Sema4, Sema4

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:curation

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

0.050

(source)

DANN

Benign

0.50

PhyloP100

-1.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over