4-84604289-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001263.4(CDS1):ā€‹c.164A>Gā€‹(p.Asp55Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,459,302 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

CDS1
NM_001263.4 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.22
Variant links:
Genes affected
CDS1 (HGNC:1800): (CDP-diacylglycerol synthase 1) Breakdown products of phosphoinositides are ubiquitous second messengers that function downstream of many G protein-coupled receptors and tyrosine kinases regulating cell growth, calcium metabolism, and protein kinase C activity. This gene encodes an enzyme which regulates the amount of phosphatidylinositol available for signaling by catalyzing the conversion of phosphatidic acid to CDP-diacylglycerol. This enzyme is an integral membrane protein localized to two subcellular domains, the matrix side of the inner mitochondrial membrane where it is thought to be involved in the synthesis of phosphatidylglycerol and cardiolipin and the cytoplasmic side of the endoplasmic reticulum where it functions in phosphatidylinositol biosynthesis. Two genes encoding this enzyme have been identified in humans, one mapping to human chromosome 4q21 and a second to 20p13. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.26979017).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CDS1NM_001263.4 linkuse as main transcriptc.164A>G p.Asp55Gly missense_variant 2/13 ENST00000295887.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CDS1ENST00000295887.6 linkuse as main transcriptc.164A>G p.Asp55Gly missense_variant 2/131 NM_001263.4 P1
CDS1ENST00000511298.1 linkuse as main transcriptc.118-5140A>G intron_variant, NMD_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251226
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135778
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1459302
Hom.:
0
Cov.:
28
AF XY:
0.00000413
AC XY:
3
AN XY:
726138
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000757
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

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 GeneticsApr 05, 2023The c.164A>G (p.D55G) alteration is located in exon 2 (coding exon 2) of the CDS1 gene. This alteration results from a A to G substitution at nucleotide position 164, causing the aspartic acid (D) at amino acid position 55 to be replaced by a glycine (G). 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
0.094
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.25
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.023
T
Eigen
Benign
-0.056
Eigen_PC
Benign
0.17
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.83
T
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.53
T
PROVEAN
Uncertain
-2.6
D
REVEL
Benign
0.21
Sift
Benign
0.12
T
Sift4G
Benign
0.18
T
Polyphen
0.0010
B
Vest4
0.55
MutPred
0.12
Gain of glycosylation at S56 (P = 0.0255);
MVP
0.51
MPC
0.35
ClinPred
0.56
D
GERP RS
5.7
Varity_R
0.29
gMVP
0.55

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: rs766674947; hg19: chr4-85525442; API