NM_004104.5:c.1237G>A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004104.5(FASN):c.1237G>A(p.Ala413Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000356 in 1,571,788 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

FASN
NM_004104.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.139

Publications

1 publications found

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]

FASN Gene-Disease associations (from GenCC):

neurodevelopmental disorder
Inheritance: AR Classification: LIMITED Submitted by: G2P

FASN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.057810158).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FASN	NM_004104.5 link	c.1237G>A	p.Ala413Thr	missense_variant	Exon 9 of 43	ENST00000306749.4	NP_004095.4	P49327
FASN	XM_011523538.3 link	c.1237G>A	p.Ala413Thr	missense_variant	Exon 9 of 43		XP_011521840.1	P49327

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FASN	ENST00000306749.4 link	c.1237G>A	p.Ala413Thr	missense_variant	Exon 9 of 43	1	NM_004104.5	ENSP00000304592.2		P49327
FASN	ENST00000634990.1 link	c.1237G>A	p.Ala413Thr	missense_variant	Exon 9 of 43	5		ENSP00000488964.1		A0A0U1RQF0

Frequencies

GnomAD3 genomes

AF:

0.0000464

AC:

AN:

150786

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000146

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000213

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000540

AC:

AN:

222252

AF XY:

0.0000740

show subpopulations

Gnomad AFR exome

AF:

0.0000733

Gnomad AMR exome

AF:

0.0000924

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000312

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000338

AC:

AN:

1420870

Hom.:

Cov.:

AF XY:

0.0000424

AC XY:

AN XY:

707552

show subpopulations

African (AFR)

AF:

0.000122

AC:

AN:

32754

American (AMR)

AF:

0.0000693

AC:

AN:

43292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25540

East Asian (EAS)

AF:

0.00

AC:

AN:

38798

South Asian (SAS)

AF:

0.000153

AC:

AN:

84770

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49430

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5680

European-Non Finnish (NFE)

AF:

0.0000222

AC:

AN:

1081986

Other (OTH)

AF:

0.0000682

AC:

AN:

58620

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

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:

0.0000530

AC:

AN:

150918

Hom.:

Cov.:

AF XY:

0.0000543

AC XY:

AN XY:

73730

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41318

American (AMR)

AF:

0.00

AC:

AN:

15216

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3458

East Asian (EAS)

AF:

0.00

AC:

AN:

5078

South Asian (SAS)

AF:

0.000213

AC:

AN:

4688

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10190

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67684

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.518

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:

0.0000609

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.0000335

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Epileptic encephalopathy

Uncertain:1

Dec 04, 2020

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine with threonine at codon 413 of the FASN protein (p.Ala413Thr). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and threonine. This variant is present in population databases (rs373548684, ExAC 0.008%). This variant has not been reported in the literature in individuals with FASN-related conditions. ClinVar contains an entry for this variant (Variation ID: 462001). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The threonine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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

0.071

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.73

CADD

Benign

9.8

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.24

T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.58

T;T

M_CAP

Benign

0.0087

MetaRNN

Benign

0.058

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;.

PhyloP100

0.14

PrimateAI

Benign

0.41

PROVEAN

Benign

-0.33

N;.

REVEL

Benign

0.029

Sift

Benign

0.59

T;.

Sift4G

Benign

0.59

T;T

Polyphen

0.0020

B;.

Vest4

0.11

MVP

0.23

ClinPred

0.026

GERP RS

-0.38

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

Varity_R

0.038

gMVP

0.41

Mutation Taster

=92/8

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over