rs12718433

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001905.4(CTPS1):​c.1094+14G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.408 in 1,584,336 control chromosomes in the GnomAD database, including 136,227 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.35 ( 10655 hom., cov: 32)
Exomes 𝑓: 0.41 ( 125572 hom. )

Consequence

CTPS1
NM_001905.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -2.50
Variant links:
Genes affected
CTPS1 (HGNC:2519): (CTP synthase 1) This gene encodes an enzyme responsible for the catalytic conversion of UTP (uridine triphosphate) to CTP (cytidine triphospate). This reaction is an important step in the biosynthesis of phospholipids and nucleic acids. Activity of this proten is important in the immune system, and loss of function of this gene has been associated with immunodeficiency. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 1-41001131-G-A is Benign according to our data. Variant chr1-41001131-G-A is described in ClinVar as [Benign]. Clinvar id is 402571.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.492 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CTPS1NM_001905.4 linkuse as main transcriptc.1094+14G>A intron_variant ENST00000650070.2 NP_001896.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CTPS1ENST00000650070.2 linkuse as main transcriptc.1094+14G>A intron_variant NM_001905.4 ENSP00000497602 P1P17812-1

Frequencies

GnomAD3 genomes
AF:
0.351
AC:
53344
AN:
151874
Hom.:
10653
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.162
Gnomad AMI
AF:
0.334
Gnomad AMR
AF:
0.501
Gnomad ASJ
AF:
0.402
Gnomad EAS
AF:
0.414
Gnomad SAS
AF:
0.334
Gnomad FIN
AF:
0.425
Gnomad MID
AF:
0.320
Gnomad NFE
AF:
0.415
Gnomad OTH
AF:
0.376
GnomAD3 exomes
AF:
0.406
AC:
93307
AN:
229616
Hom.:
19733
AF XY:
0.405
AC XY:
50628
AN XY:
124906
show subpopulations
Gnomad AFR exome
AF:
0.160
Gnomad AMR exome
AF:
0.556
Gnomad ASJ exome
AF:
0.407
Gnomad EAS exome
AF:
0.406
Gnomad SAS exome
AF:
0.332
Gnomad FIN exome
AF:
0.413
Gnomad NFE exome
AF:
0.420
Gnomad OTH exome
AF:
0.426
GnomAD4 exome
AF:
0.414
AC:
593595
AN:
1432344
Hom.:
125572
Cov.:
27
AF XY:
0.412
AC XY:
293394
AN XY:
712958
show subpopulations
Gnomad4 AFR exome
AF:
0.141
Gnomad4 AMR exome
AF:
0.547
Gnomad4 ASJ exome
AF:
0.401
Gnomad4 EAS exome
AF:
0.423
Gnomad4 SAS exome
AF:
0.335
Gnomad4 FIN exome
AF:
0.418
Gnomad4 NFE exome
AF:
0.425
Gnomad4 OTH exome
AF:
0.404
GnomAD4 genome
AF:
0.351
AC:
53353
AN:
151992
Hom.:
10655
Cov.:
32
AF XY:
0.356
AC XY:
26466
AN XY:
74272
show subpopulations
Gnomad4 AFR
AF:
0.161
Gnomad4 AMR
AF:
0.501
Gnomad4 ASJ
AF:
0.402
Gnomad4 EAS
AF:
0.415
Gnomad4 SAS
AF:
0.333
Gnomad4 FIN
AF:
0.425
Gnomad4 NFE
AF:
0.415
Gnomad4 OTH
AF:
0.375
Alfa
AF:
0.302
Hom.:
1516
Bravo
AF:
0.353
Asia WGS
AF:
0.335
AC:
1163
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMar 28, 2016Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Frequency -
Benign, criteria provided, single submitterclinical testingUnidad de Genómica Garrahan, Hospital de Pediatría GarrahanNov 12, 2023This variant is classified as Benign based on local population frequency. This variant was detected in 73% of patients studied by a panel of primary immunodeficiencies. Number of patients: 70. Only high quality variants are reported. -
Severe combined immunodeficiency due to CTPS1 deficiency Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 30, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.026
DANN
Benign
0.50
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs12718433; hg19: chr1-41466803; COSMIC: COSV65452294; COSMIC: COSV65452294; API