17-82079153-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_004104.5(FASN):​c.7526G>A​(p.Arg2509Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000931 in 1,611,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

FASN
NM_004104.5 missense

Scores

3
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.14
Variant links:
Genes affected
FASN (HGNC:3594): (fatty acid synthase) The enzyme encoded by this gene is a multifunctional protein. Its main function is to catalyze the synthesis of palmitate from acetyl-CoA and malonyl-CoA, in the presence of NADPH, into long-chain saturated fatty acids. In some cancer cell lines, this protein has been found to be fused with estrogen receptor-alpha (ER-alpha), in which the N-terminus of FAS is fused in-frame with the C-terminus of ER-alpha. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.28386888).
BS2
High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FASNNM_004104.5 linkuse as main transcriptc.7526G>A p.Arg2509Gln missense_variant 43/43 ENST00000306749.4
FASNXM_011523538.3 linkuse as main transcriptc.7526G>A p.Arg2509Gln missense_variant 43/43

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FASNENST00000306749.4 linkuse as main transcriptc.7526G>A p.Arg2509Gln missense_variant 43/431 NM_004104.5 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152214
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000807
AC:
2
AN:
247758
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
134918
show subpopulations
Gnomad AFR exome
AF:
0.0000629
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000896
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000822
AC:
12
AN:
1459590
Hom.:
0
Cov.:
35
AF XY:
0.00000964
AC XY:
7
AN XY:
726124
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000719
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152214
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000166
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Epileptic encephalopathy Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 19, 2023This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 2509 of the FASN protein (p.Arg2509Gln). This variant is present in population databases (rs759790350, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with FASN-related conditions. ClinVar contains an entry for this variant (Variation ID: 1052690). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.42
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.29
T;.
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.064
D
MetaRNN
Benign
0.28
T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
1.9
L;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-1.4
N;.
REVEL
Benign
0.088
Sift
Uncertain
0.017
D;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.48
MutPred
0.21
Loss of methylation at R2509 (P = 0.0316);.;
MVP
0.52
ClinPred
0.53
D
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.17
gMVP
0.89

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: rs759790350; hg19: chr17-80037029; API