chr17-17221501-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_144606.7(FLCN):​c.907G>A​(p.Gly303Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0591 in 1,613,860 control chromosomes in the GnomAD database, including 3,963 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/14 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.074 ( 591 hom., cov: 32)
Exomes 𝑓: 0.058 ( 3372 hom. )

Consequence

FLCN
NM_144606.7 missense

Scores

14

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6O:1

Conservation

PhyloP100: -2.73
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]

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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 (MetaRNN=0.001381129).
BP6
Variant 17-17221501-C-T is Benign according to our data. Variant chr17-17221501-C-T is described in ClinVar as [Benign]. Clinvar id is 41861.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-17221501-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.17 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FLCNNM_144997.7 linkuse as main transcriptc.871+36G>A intron_variant ENST00000285071.9 NP_659434.2 Q8NFG4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FLCNENST00000389169.9 linkuse as main transcriptc.907G>A p.Gly303Arg missense_variant 8/81 ENSP00000373821.5 Q8NFG4-2
FLCNENST00000285071.9 linkuse as main transcriptc.871+36G>A intron_variant 1 NM_144997.7 ENSP00000285071.4 Q8NFG4-1
ENSG00000264187ENST00000427497.3 linkuse as main transcriptn.149-2447G>A intron_variant 1 ENSP00000394249.3 J3QW42
FLCNENST00000466317.1 linkuse as main transcriptn.750G>A non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0737
AC:
11211
AN:
152122
Hom.:
586
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.128
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.0411
Gnomad ASJ
AF:
0.0502
Gnomad EAS
AF:
0.179
Gnomad SAS
AF:
0.125
Gnomad FIN
AF:
0.0239
Gnomad MID
AF:
0.0475
Gnomad NFE
AF:
0.0465
Gnomad OTH
AF:
0.0676
GnomAD3 exomes
AF:
0.0690
AC:
17323
AN:
250996
Hom.:
995
AF XY:
0.0712
AC XY:
9664
AN XY:
135730
show subpopulations
Gnomad AFR exome
AF:
0.132
Gnomad AMR exome
AF:
0.0322
Gnomad ASJ exome
AF:
0.0507
Gnomad EAS exome
AF:
0.194
Gnomad SAS exome
AF:
0.127
Gnomad FIN exome
AF:
0.0256
Gnomad NFE exome
AF:
0.0463
Gnomad OTH exome
AF:
0.0518
GnomAD4 exome
AF:
0.0576
AC:
84152
AN:
1461620
Hom.:
3372
Cov.:
32
AF XY:
0.0595
AC XY:
43277
AN XY:
727110
show subpopulations
Gnomad4 AFR exome
AF:
0.136
Gnomad4 AMR exome
AF:
0.0341
Gnomad4 ASJ exome
AF:
0.0525
Gnomad4 EAS exome
AF:
0.183
Gnomad4 SAS exome
AF:
0.125
Gnomad4 FIN exome
AF:
0.0259
Gnomad4 NFE exome
AF:
0.0474
Gnomad4 OTH exome
AF:
0.0687
GnomAD4 genome
AF:
0.0738
AC:
11235
AN:
152240
Hom.:
591
Cov.:
32
AF XY:
0.0742
AC XY:
5523
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.128
Gnomad4 AMR
AF:
0.0410
Gnomad4 ASJ
AF:
0.0502
Gnomad4 EAS
AF:
0.179
Gnomad4 SAS
AF:
0.126
Gnomad4 FIN
AF:
0.0239
Gnomad4 NFE
AF:
0.0465
Gnomad4 OTH
AF:
0.0707
Alfa
AF:
0.0538
Hom.:
758
Bravo
AF:
0.0791
TwinsUK
AF:
0.0502
AC:
186
ALSPAC
AF:
0.0472
AC:
182
ESP6500AA
AF:
0.131
AC:
579
ESP6500EA
AF:
0.0499
AC:
429
ExAC
AF:
0.0722
AC:
8763
Asia WGS
AF:
0.132
AC:
460
AN:
3478
EpiCase
AF:
0.0521
EpiControl
AF:
0.0472

ClinVar

Significance: Benign
Submissions summary: Benign:6Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, no assertion criteria providedresearchBiesecker Lab/Clinical Genomics Section, National Institutes of HealthJul 13, 2012- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015This variant is associated with the following publications: (PMID: 27120335, 24728327) -
Birt-Hogg-Dube syndrome Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024- -
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
not specified Benign:1Other:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineFeb 21, 2013Gly303Arg in exon 8A of FLCN: This variant is not expected to have clinical sign ificance because it has been identified in 13.1% (579/4406) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http: //evs.gs.washington.edu/EVS; dbSNP rs3744124). -
not provided, no classification providedreference populationITMISep 19, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
0.20
DANN
Benign
0.64
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.0054
N
LIST_S2
Benign
0.29
T
MetaRNN
Benign
0.0014
T
MetaSVM
Benign
-1.0
T
PROVEAN
Benign
-0.60
N
REVEL
Benign
0.23
Sift
Benign
0.38
T
Sift4G
Benign
0.56
T
Polyphen
0.0020
B
Vest4
0.083
MutPred
0.25
Gain of MoRF binding (P = 0.0251);
ClinPred
0.00059
T
GERP RS
-4.7
RBP_binding_hub_radar
1.1
RBP_regulation_power_radar
2.4

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs3744124; hg19: chr17-17124815; COSMIC: COSV53258025; COSMIC: COSV53258025; API