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chr2-210556381-G-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The ENST00000430249.7(CPS1):​c.4-338G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00503 in 479,756 control chromosomes in the GnomAD database, including 41 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.012 ( 33 hom., cov: 32)
Exomes 𝑓: 0.0017 ( 8 hom. )

Consequence

CPS1
ENST00000430249.7 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.17
Variant links:
Genes affected
CPS1 (HGNC:2323): (carbamoyl-phosphate synthase 1) The mitochondrial enzyme encoded by this gene catalyzes synthesis of carbamoyl phosphate from ammonia and bicarbonate. This reaction is the first committed step of the urea cycle, which is important in the removal of excess urea from cells. The encoded protein may also represent a core mitochondrial nucleoid protein. Three transcript variants encoding different isoforms have been found for this gene. The shortest isoform may not be localized to the mitochondrion. Mutations in this gene have been associated with carbamoyl phosphate synthetase deficiency, susceptibility to persistent pulmonary hypertension, and susceptibility to venoocclusive disease after bone marrow transplantation.[provided by RefSeq, May 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 2-210556381-G-T is Benign according to our data. Variant chr2-210556381-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 1205371.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0123 (1870/152126) while in subpopulation AFR AF= 0.042 (1744/41520). AF 95% confidence interval is 0.0404. There are 33 homozygotes in gnomad4. There are 851 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 33 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPS1NM_001122633.3 linkuse as main transcriptc.-15-338G>T intron_variant
CPS1NM_001369256.1 linkuse as main transcriptc.19-338G>T intron_variant
CPS1NM_001369257.1 linkuse as main transcriptc.-15-338G>T intron_variant
CPS1NR_161225.1 linkuse as main transcriptn.898-338G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPS1ENST00000430249.7 linkuse as main transcriptc.4-338G>T intron_variant 1 P31327-3
CPS1ENST00000673510.1 linkuse as main transcriptc.-15-338G>T intron_variant P1P31327-1
CPS1ENST00000673630.1 linkuse as main transcriptc.-15-338G>T intron_variant P1P31327-1
CPS1ENST00000673711.1 linkuse as main transcriptc.-15-338G>T intron_variant P1P31327-1

Frequencies

GnomAD3 genomes
AF:
0.0122
AC:
1862
AN:
152008
Hom.:
33
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0419
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00637
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.00861
GnomAD3 exomes
AF:
0.00254
AC:
325
AN:
128000
Hom.:
10
AF XY:
0.00211
AC XY:
148
AN XY:
70106
show subpopulations
Gnomad AFR exome
AF:
0.0421
Gnomad AMR exome
AF:
0.00222
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000134
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.00176
GnomAD4 exome
AF:
0.00165
AC:
542
AN:
327630
Hom.:
8
Cov.:
4
AF XY:
0.00125
AC XY:
231
AN XY:
184888
show subpopulations
Gnomad4 AFR exome
AF:
0.0412
Gnomad4 AMR exome
AF:
0.00241
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000125
Gnomad4 OTH exome
AF:
0.00318
GnomAD4 genome
AF:
0.0123
AC:
1870
AN:
152126
Hom.:
33
Cov.:
32
AF XY:
0.0114
AC XY:
851
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.0420
Gnomad4 AMR
AF:
0.00636
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00852
Alfa
AF:
0.00594
Hom.:
5
Bravo
AF:
0.0139
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJan 09, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
5.7
DANN
Benign
0.57

Splicing

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: rs75313076; hg19: chr2-211421105; API