Genetic Variant NM_144997.7:c.1224G>T (chr17-17216456-C-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_144997.7(FLCN):c.1224G>T(p.Gln408His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,562 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q408R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 1 hom. )

Consequence

FLCN
NM_144997.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 1.78

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: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.38451725).

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.1224G>T	p.Gln408His	missense	Exon 11 of 14	NP_659434.2
FLCN	NM_001353229.2		c.1278G>T	p.Gln426His	missense	Exon 13 of 16	NP_001340158.1
FLCN	NM_001353230.2		c.1224G>T	p.Gln408His	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.1224G>T	p.Gln408His	missense	Exon 11 of 14	ENSP00000285071.4	Q8NFG4-1
ENSG00000264187	ENST00000427497.3	TSL:1	n.*58G>T		non_coding_transcript_exon	Exon 7 of 12	ENSP00000394249.3	J3QW42
ENSG00000264187	ENST00000427497.3	TSL:1	n.*58G>T		3_prime_UTR	Exon 7 of 12	ENSP00000394249.3	J3QW42

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461562

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727078

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33466

American (AMR)

AF:

0.00

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86222

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53346

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111878

Other (OTH)

AF:

0.00

AC:

AN:

60372

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Birt-Hogg-Dube syndrome (1)

Hereditary cancer-predisposing syndrome (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.0033

BayesDel_noAF

Benign

-0.24

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.42

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.20

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.79

M_CAP

Uncertain

0.13

MetaRNN

Benign

0.38

MetaSVM

Uncertain

-0.072

MutationAssessor

Benign

1.4

PhyloP100

1.8

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.3

REVEL

Benign

0.23

Sift

Benign

0.14

Sift4G

Benign

0.15

Polyphen

0.0010

Vest4

0.53

MutPred

0.24

Loss of helix (P = 0.0626)

MVP

0.22

MPC

0.57

ClinPred

0.50

GERP RS

3.9

Varity_R

0.20

gMVP

0.61

Mutation Taster

=51/49

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over