rs12144160

Variant summary

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

The NM_001905.4(CTPS1):​c.1547-32A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.546 in 1,527,940 control chromosomes in the GnomAD database, including 232,519 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.47 ( 18617 hom., cov: 32)
Exomes 𝑓: 0.55 ( 213902 hom. )

Consequence

CTPS1
NM_001905.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.823
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 1-41009413-A-G is Benign according to our data. Variant chr1-41009413-A-G is described in ClinVar as [Benign]. Clinvar id is 1255416.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.593 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CTPS1NM_001905.4 linkuse as main transcriptc.1547-32A>G 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.1547-32A>G intron_variant NM_001905.4 ENSP00000497602 P1P17812-1

Frequencies

GnomAD3 genomes
AF:
0.475
AC:
72202
AN:
152020
Hom.:
18608
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.260
Gnomad AMI
AF:
0.500
Gnomad AMR
AF:
0.603
Gnomad ASJ
AF:
0.546
Gnomad EAS
AF:
0.545
Gnomad SAS
AF:
0.525
Gnomad FIN
AF:
0.533
Gnomad MID
AF:
0.456
Gnomad NFE
AF:
0.554
Gnomad OTH
AF:
0.513
GnomAD3 exomes
AF:
0.537
AC:
101740
AN:
189426
Hom.:
28180
AF XY:
0.542
AC XY:
55063
AN XY:
101548
show subpopulations
Gnomad AFR exome
AF:
0.254
Gnomad AMR exome
AF:
0.651
Gnomad ASJ exome
AF:
0.541
Gnomad EAS exome
AF:
0.541
Gnomad SAS exome
AF:
0.518
Gnomad FIN exome
AF:
0.524
Gnomad NFE exome
AF:
0.560
Gnomad OTH exome
AF:
0.560
GnomAD4 exome
AF:
0.554
AC:
762470
AN:
1375800
Hom.:
213902
Cov.:
31
AF XY:
0.553
AC XY:
374383
AN XY:
676886
show subpopulations
Gnomad4 AFR exome
AF:
0.237
Gnomad4 AMR exome
AF:
0.645
Gnomad4 ASJ exome
AF:
0.539
Gnomad4 EAS exome
AF:
0.548
Gnomad4 SAS exome
AF:
0.518
Gnomad4 FIN exome
AF:
0.533
Gnomad4 NFE exome
AF:
0.565
Gnomad4 OTH exome
AF:
0.547
GnomAD4 genome
AF:
0.475
AC:
72255
AN:
152140
Hom.:
18617
Cov.:
32
AF XY:
0.478
AC XY:
35575
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.260
Gnomad4 AMR
AF:
0.603
Gnomad4 ASJ
AF:
0.546
Gnomad4 EAS
AF:
0.546
Gnomad4 SAS
AF:
0.525
Gnomad4 FIN
AF:
0.533
Gnomad4 NFE
AF:
0.554
Gnomad4 OTH
AF:
0.511
Alfa
AF:
0.486
Hom.:
4391
Bravo
AF:
0.472
Asia WGS
AF:
0.501
AC:
1744
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
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 78% of patients studied by a panel of primary immunodeficiencies. Number of patients: 75. Only high quality variants are reported. -
Severe combined immunodeficiency due to CTPS1 deficiency Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 30, 2021- -
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
-0.89
CADD
Benign
2.2
DANN
Benign
0.57

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: rs12144160; hg19: chr1-41475085; COSMIC: COSV65452641; API