12-56300180-C-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004077.3(CS):​c.22G>T​(p.Ala8Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000636 in 1,572,388 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000063 ( 0 hom. )

Consequence

CS
NM_004077.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.713
Variant links:
Genes affected
CS (HGNC:2422): (citrate synthase) The protein encoded by this gene is a Krebs tricarboxylic acid cycle enzyme that catalyzes the synthesis of citrate from oxaloacetate and acetyl coenzyme A. The enzyme is found in nearly all cells capable of oxidative metablism. This protein is nuclear encoded and transported into the mitochondrial matrix, where the mature form is found. [provided by RefSeq, Jul 2008]
CNPY2-AS1 (HGNC:55480): (CNPY2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21085113).
BS2
High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CSNM_004077.3 linkuse as main transcriptc.22G>T p.Ala8Ser missense_variant 1/11 ENST00000351328.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CSENST00000351328.8 linkuse as main transcriptc.22G>T p.Ala8Ser missense_variant 1/111 NM_004077.3 P1
CNPY2-AS1ENST00000660360.2 linkuse as main transcriptn.87C>A non_coding_transcript_exon_variant 1/2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000634
AC:
9
AN:
1420158
Hom.:
0
Cov.:
30
AF XY:
0.00000142
AC XY:
1
AN XY:
703258
show subpopulations
Gnomad4 AFR exome
AF:
0.0000313
Gnomad4 AMR exome
AF:
0.00
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:
0.00000732
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74380
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

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 GeneticsJan 03, 2024The c.22G>T (p.A8S) alteration is located in exon 1 (coding exon 1) of the CS gene. This alteration results from a G to T substitution at nucleotide position 22, causing the alanine (A) at amino acid position 8 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
0.086
BayesDel_addAF
Benign
-0.023
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.19
T;.;.;.;T;.;T;.
Eigen
Benign
0.037
Eigen_PC
Benign
0.072
FATHMM_MKL
Benign
0.66
D
LIST_S2
Benign
0.78
T;T;T;T;T;T;T;T
M_CAP
Uncertain
0.26
D
MetaRNN
Benign
0.21
T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.80
T
MutationAssessor
Benign
0.34
N;.;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;N
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
0.10
N;N;N;N;N;N;N;N
REVEL
Benign
0.12
Sift
Benign
0.84
T;T;T;T;T;T;T;T
Sift4G
Benign
0.50
T;.;.;T;.;.;.;T
Polyphen
0.82
P;.;.;.;.;.;.;.
Vest4
0.34
MutPred
0.35
Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);Loss of helix (P = 0.0041);.;
MVP
0.35
MPC
0.064
ClinPred
0.69
D
GERP RS
2.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.042
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs1170976989; hg19: chr12-56693964; API