rs780441119

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004104.5(FASN):​c.1213A>G​(p.Arg405Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000156 in 1,604,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

FASN
NM_004104.5 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.140
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 -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.13792342).
BS2
High AC in GnomAdExome4 at 24 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FASNNM_004104.5 linkc.1213A>G p.Arg405Gly missense_variant Exon 9 of 43 ENST00000306749.4 NP_004095.4 P49327
FASNXM_011523538.3 linkc.1213A>G p.Arg405Gly missense_variant Exon 9 of 43 XP_011521840.1 P49327

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FASNENST00000306749.4 linkc.1213A>G p.Arg405Gly missense_variant Exon 9 of 43 1 NM_004104.5 ENSP00000304592.2 P49327
FASNENST00000634990.1 linkc.1213A>G p.Arg405Gly missense_variant Exon 9 of 43 5 ENSP00000488964.1 A0A0U1RQF0

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000263
AC:
6
AN:
228020
Hom.:
0
AF XY:
0.0000321
AC XY:
4
AN XY:
124456
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000527
Gnomad NFE exome
AF:
0.0000500
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000165
AC:
24
AN:
1452862
Hom.:
0
Cov.:
35
AF XY:
0.0000166
AC XY:
12
AN XY:
722236
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000785
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74278
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000943
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000417
AC:
5

ClinVar

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

Submissions by phenotype

Epileptic encephalopathy Uncertain:1
Jan 28, 2018
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine with glycine at codon 405 of the FASN protein (p.Arg405Gly). The arginine residue is weakly conserved and there is a moderate physicochemical difference between arginine and glycine. This variant is present in population databases (rs780441119, ExAC 0.01%). This variant has not been reported in the literature in individuals with FASN-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). 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
0.17
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
19
DANN
Benign
0.91
DEOGEN2
Uncertain
0.72
D;.
Eigen
Benign
-0.94
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.63
D
LIST_S2
Benign
0.86
D;D
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
L;.
PrimateAI
Benign
0.35
T
PROVEAN
Uncertain
-3.8
D;.
REVEL
Benign
0.021
Sift
Uncertain
0.0070
D;.
Sift4G
Uncertain
0.0050
D;D
Polyphen
0.37
B;.
Vest4
0.33
MutPred
0.47
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP
0.26
ClinPred
0.12
T
GERP RS
0.0040
Varity_R
0.42
gMVP
0.86

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

LitVar

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

Other links and lift over

dbSNP: rs780441119; hg19: chr17-80049377; API