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GeneBe

20-25013638-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_032501.4(ACSS1):​c.1477G>A​(p.Val493Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,607,490 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

ACSS1
NM_032501.4 missense

Scores

3
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.22
Variant links:
Genes affected
ACSS1 (HGNC:16091): (acyl-CoA synthetase short chain family member 1) This gene encodes a mitochondrial acetyl-CoA synthetase enzyme. A similar protein in mice plays an important role in the tricarboxylic acid cycle by catalyzing the conversion of acetate to acetyl CoA. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.147506).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACSS1NM_032501.4 linkuse as main transcriptc.1477G>A p.Val493Ile missense_variant 10/14 ENST00000323482.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACSS1ENST00000323482.9 linkuse as main transcriptc.1477G>A p.Val493Ile missense_variant 10/141 NM_032501.4 P1Q9NUB1-1
ACSS1ENST00000432802.6 linkuse as main transcriptc.1477G>A p.Val493Ile missense_variant 10/122 Q9NUB1-4
ACSS1ENST00000537502.5 linkuse as main transcriptc.1114G>A p.Val372Ile missense_variant 9/132 Q9NUB1-3

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152120
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000202
AC:
5
AN:
247688
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134396
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.00
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:
0.0000178
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1455252
Hom.:
0
Cov.:
30
AF XY:
0.0000124
AC XY:
9
AN XY:
723112
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152238
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000387
Hom.:
0
Bravo
AF:
0.0000793
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 06, 2023The c.1477G>A (p.V493I) alteration is located in exon 10 (coding exon 10) of the ACSS1 gene. This alteration results from a G to A substitution at nucleotide position 1477, causing the valine (V) at amino acid position 493 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
18
DANN
Uncertain
0.99
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.15
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.88
D;T;T
M_CAP
Benign
0.0066
T
MetaRNN
Benign
0.15
T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Benign
0.33
T
REVEL
Benign
0.022
Sift4G
Benign
0.12
T;T;T
Polyphen
0.032
.;.;B
Vest4
0.15
MVP
0.43
MPC
0.51
ClinPred
0.066
T
GERP RS
3.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.033
gMVP
0.44

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: rs367670992; hg19: chr20-24994274; API