Genetic Variant FLCN:p.Pro472Ala (chr17-17215203-G-C) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_144997.7(FLCN):c.1414C>G(p.Pro472Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000136 in 1,614,148 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. P472L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00073 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000074 ( 0 hom. )

Consequence

FLCN
NM_144997.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: 3.07

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 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: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0130290985).

BP6

Variant 17-17215203-G-C is Benign according to our data. Variant chr17-17215203-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 241918.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000729 (111/152316) while in subpopulation AFR AF = 0.00262 (109/41576). AF 95% confidence interval is 0.00222. There are 0 homozygotes in GnomAd4. There are 62 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 111 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.1414C>G	p.Pro472Ala	missense	Exon 12 of 14	NP_659434.2
FLCN	NM_001353229.2		c.1468C>G	p.Pro490Ala	missense	Exon 14 of 16	NP_001340158.1
FLCN	NM_001353230.2		c.1414C>G	p.Pro472Ala	missense	Exon 13 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.1414C>G	p.Pro472Ala	missense	Exon 12 of 14	ENSP00000285071.4	Q8NFG4-1
ENSG00000264187	ENST00000427497.3	TSL:1	n.*248C>G		non_coding_transcript_exon	Exon 8 of 12	ENSP00000394249.3	J3QW42
ENSG00000264187	ENST00000427497.3	TSL:1	n.*248C>G		3_prime_UTR	Exon 8 of 12	ENSP00000394249.3	J3QW42

Frequencies

GnomAD3 genomes

AF:

0.000716

AC:

109

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00258

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000215

AC:

AN:

251400

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.00289

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000739

AC:

108

AN:

1461832

Hom.:

Cov.:

AF XY:

0.0000660

AC XY:

AN XY:

727208

show subpopulations

African (AFR)

AF:

0.00251

AC:

AN:

33480

American (AMR)

AF:

0.000246

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53372

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112002

Other (OTH)

AF:

0.000215

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

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:

0.000729

AC:

111

AN:

152316

Hom.:

Cov.:

AF XY:

0.000832

AC XY:

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.00262

AC:

109

AN:

41576

American (AMR)

AF:

0.000131

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

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:

0.000920

Hom.:

Bravo

AF:

0.00104

ESP6500AA

AF:

0.00363

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000255

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary cancer-predisposing syndrome (2)

not specified (2)

Birt-Hogg-Dube syndrome (1)

Birt-Hogg-Dube syndrome 1 (1)

FLCN-related disorder (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.060

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Benign

0.92

DEOGEN2

Uncertain

0.53

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.19

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.77

M_CAP

Benign

0.040

MetaRNN

Benign

0.013

MetaSVM

Benign

-0.40

MutationAssessor

Benign

1.6

PhyloP100

3.1

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.8

REVEL

Benign

0.26

Sift

Benign

0.12

Sift4G

Benign

0.52

Polyphen

0.0

Vest4

0.35

MVP

0.17

MPC

0.36

ClinPred

0.028

GERP RS

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.26

gMVP

0.32

Mutation Taster

=82/18

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over