chr20-25007830-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_032501.4(ACSS1):​c.2002C>T​(p.Pro668Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000805 in 1,614,058 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

ACSS1
NM_032501.4 missense

Scores

6
6
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.12
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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACSS1NM_032501.4 linkuse as main transcriptc.2002C>T p.Pro668Ser missense_variant 14/14 ENST00000323482.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACSS1ENST00000323482.9 linkuse as main transcriptc.2002C>T p.Pro668Ser missense_variant 14/141 NM_032501.4 P1Q9NUB1-1
ACSS1ENST00000484396.1 linkuse as main transcriptn.3169C>T non_coding_transcript_exon_variant 2/21
ACSS1ENST00000537502.5 linkuse as main transcriptc.1639C>T p.Pro547Ser missense_variant 13/132 Q9NUB1-3
ACSS1ENST00000432802.6 linkuse as main transcriptc.1663-905C>T intron_variant 2 Q9NUB1-4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152174
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000278
AC:
7
AN:
251460
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.00000752
AC:
11
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000894
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152174
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74334
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:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsAug 02, 2022The c.2002C>T (p.P668S) alteration is located in exon 14 (coding exon 14) of the ACSS1 gene. This alteration results from a C to T substitution at nucleotide position 2002, causing the proline (P) at amino acid position 668 to be replaced by a serine (S). 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
0.13
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.28
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.72
.;D
Eigen
Pathogenic
0.73
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Benign
0.064
D
MetaRNN
Uncertain
0.54
D;D
MetaSVM
Benign
-0.50
T
MutationAssessor
Uncertain
2.7
.;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Benign
0.43
T
PROVEAN
Pathogenic
-7.4
.;D
REVEL
Uncertain
0.33
Sift
Uncertain
0.0080
.;D
Sift4G
Uncertain
0.015
D;D
Polyphen
1.0
.;D
Vest4
0.54
MutPred
0.45
.;Gain of disorder (P = 0.0752);
MVP
0.72
MPC
1.5
ClinPred
0.61
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.61
gMVP
0.63

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: rs771864039; hg19: chr20-24988466; API