dbSNP rs786203348: FLCN:p.Gln425Arg (chr17-17216406-T-C) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM1BP4BP6BS2

The NM_144997.7(FLCN):c.1274A>G(p.Gln425Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000589 in 1,613,562 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q425H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

FLCN
NM_144997.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:3

Conservation

PhyloP100: 3.06

Publications

2 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 links:

ENSG00000264187 (HGNC:):

ENSG00000264187 links:

MPRIP (HGNC:30321): (myosin phosphatase Rho interacting protein) Enables cadherin binding activity. Predicted to be involved in actin filament organization. Located in actin cytoskeleton and cytosol. [provided by Alliance of Genome Resources, Apr 2022]

MPRIP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 10 benign, 36 uncertain in NM_144997.7

BP4

Computational evidence support a benign effect (MetaRNN=0.2814504).

BP6

Variant 17-17216406-T-C is Benign according to our data. Variant chr17-17216406-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 186952.

BS2

High AC in GnomAd4 at 8 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_144997.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FLCN	NM_144997.7	MANE Select	c.1274A>G	p.Gln425Arg	missense	Exon 11 of 14	NP_659434.2
FLCN	NM_001353229.2		c.1328A>G	p.Gln443Arg	missense	Exon 13 of 16	NP_001340158.1
FLCN	NM_001353230.2		c.1274A>G	p.Gln425Arg	missense	Exon 12 of 15	NP_001340159.1	Q8NFG4-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FLCN	ENST00000285071.9	TSL:1 MANE Select	c.1274A>G	p.Gln425Arg	missense	Exon 11 of 14	ENSP00000285071.4	Q8NFG4-1
ENSG00000264187	ENST00000427497.3	TSL:1	n.*108A>G		non_coding_transcript_exon	Exon 7 of 12	ENSP00000394249.3	J3QW42
ENSG00000264187	ENST00000427497.3	TSL:1	n.*108A>G		3_prime_UTR	Exon 7 of 12	ENSP00000394249.3	J3QW42

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000241

AC:

AN:

248696

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.0000621

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000358

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000595

AC:

AN:

1461376

Hom.:

Cov.:

AF XY:

0.0000509

AC XY:

AN XY:

727002

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33468

American (AMR)

AF:

0.00

AC:

AN:

44676

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86226

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53302

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.0000747

AC:

AN:

1111768

Other (OTH)

AF:

0.0000497

AC:

AN:

60364

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000526

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74354

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41454

American (AMR)

AF:

0.0000655

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.538

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000116

Hom.:

Bravo

AF:

0.0000189

EpiCase

AF:

0.000164

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Birt-Hogg-Dube syndrome (2)

Hereditary cancer-predisposing syndrome (2)

not provided (2)

Birt-Hogg-Dube syndrome 1 (1)

FLCN-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.23

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.49

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.020

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.80

M_CAP

Uncertain

0.20

MetaRNN

Benign

0.28

MetaSVM

Uncertain

-0.060

MutationAssessor

Benign

1.4

PhyloP100

3.1

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.99

REVEL

Benign

0.28

Sift

Benign

0.24

Sift4G

Benign

0.38

Polyphen

0.0070

Vest4

0.53

MVP

0.34

MPC

0.40

ClinPred

0.051

GERP RS

4.8

Varity_R

0.19

gMVP

0.38

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over