rs45540245

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_004104.5(FASN):​c.1968C>T​(p.Ala656=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00299 in 1,612,736 control chromosomes in the GnomAD database, including 140 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 71 hom., cov: 33)
Exomes 𝑓: 0.0016 ( 69 hom. )

Consequence

FASN
NM_004104.5 splice_region, synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.70
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 Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 17-82089382-G-A is Benign according to our data. Variant chr17-82089382-G-A is described in ClinVar as [Benign]. Clinvar id is 462013.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.7 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0553 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FASNNM_004104.5 linkuse as main transcriptc.1968C>T p.Ala656= splice_region_variant, synonymous_variant 13/43 ENST00000306749.4 NP_004095.4
FASNXM_011523538.3 linkuse as main transcriptc.1968C>T p.Ala656= splice_region_variant, synonymous_variant 13/43 XP_011521840.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FASNENST00000306749.4 linkuse as main transcriptc.1968C>T p.Ala656= splice_region_variant, synonymous_variant 13/431 NM_004104.5 ENSP00000304592 P1
FASNENST00000634990.1 linkuse as main transcriptc.1968C>T p.Ala656= splice_region_variant, synonymous_variant 13/435 ENSP00000488964

Frequencies

GnomAD3 genomes
AF:
0.0165
AC:
2515
AN:
152132
Hom.:
71
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0573
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00746
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00814
GnomAD3 exomes
AF:
0.00407
AC:
1011
AN:
248446
Hom.:
32
AF XY:
0.00298
AC XY:
403
AN XY:
135078
show subpopulations
Gnomad AFR exome
AF:
0.0564
Gnomad AMR exome
AF:
0.00272
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000539
Gnomad OTH exome
AF:
0.00115
GnomAD4 exome
AF:
0.00158
AC:
2301
AN:
1460488
Hom.:
69
Cov.:
34
AF XY:
0.00134
AC XY:
977
AN XY:
726536
show subpopulations
Gnomad4 AFR exome
AF:
0.0574
Gnomad4 AMR exome
AF:
0.00318
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000198
Gnomad4 OTH exome
AF:
0.00338
GnomAD4 genome
AF:
0.0166
AC:
2520
AN:
152248
Hom.:
71
Cov.:
33
AF XY:
0.0159
AC XY:
1184
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.0573
Gnomad4 AMR
AF:
0.00745
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00806
Alfa
AF:
0.00811
Hom.:
19
Bravo
AF:
0.0185
Asia WGS
AF:
0.00318
AC:
11
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

FASN-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 17, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Epileptic encephalopathy Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 28, 2024- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.053
DANN
Benign
0.58
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8

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: rs45540245; hg19: chr17-80047258; API