rs1555668714
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_004104.5(FASN):c.1568C>T(p.Ser523Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. S523S) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 33)
Consequence
FASN
NM_004104.5 missense
NM_004104.5 missense
Scores
3
13
3
Clinical Significance
Conservation
PhyloP100: 4.70
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.891
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
FASN | NM_004104.5 | c.1568C>T | p.Ser523Phe | missense_variant | 10/43 | ENST00000306749.4 | |
FASN | XM_011523538.3 | c.1568C>T | p.Ser523Phe | missense_variant | 10/43 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
FASN | ENST00000306749.4 | c.1568C>T | p.Ser523Phe | missense_variant | 10/43 | 1 | NM_004104.5 | P1 | |
FASN | ENST00000634990.1 | c.1568C>T | p.Ser523Phe | missense_variant | 10/43 | 5 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 34
GnomAD4 exome
Cov.:
34
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
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 submitter | clinical testing | Invitae | Jan 19, 2024 | This sequence change replaces serine, which is neutral and polar, with phenylalanine, which is neutral and non-polar, at codon 523 of the FASN protein (p.Ser523Phe). This variant is not present in population databases (gnomAD no frequency). 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: 462007). 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 disruptive. 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:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Uncertain
D;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;.
MutationTaster
Benign
D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;.
REVEL
Uncertain
Sift
Uncertain
D;.
Sift4G
Uncertain
D;D
Polyphen
D;.
Vest4
MutPred
Loss of disorder (P = 0.0103);Loss of disorder (P = 0.0103);
MVP
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at