rs140726293

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6_Very_StrongBP7

The NM_001875.5(CPS1):​c.2421G>A​(p.Glu807Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000144 in 1,612,074 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

CPS1
NM_001875.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 2.25

Publications

0 publications found
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]
CPS1 Gene-Disease associations (from GenCC):
  • carbamoyl phosphate synthetase I deficiency disease
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae), ClinGen, Myriad Women’s Health

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 2-210612146-G-A is Benign according to our data. Variant chr2-210612146-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 511594.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2.25 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CPS1NM_001875.5 linkc.2421G>A p.Glu807Glu synonymous_variant Exon 20 of 38 ENST00000233072.10 NP_001866.2 P31327-1A0A024R454Q6PEK7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CPS1ENST00000233072.10 linkc.2421G>A p.Glu807Glu synonymous_variant Exon 20 of 38 1 NM_001875.5 ENSP00000233072.5 P31327-1

Frequencies

GnomAD3 genomes
AF:
0.000250
AC:
38
AN:
151768
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.000780
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00217
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000884
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000327
AC:
82
AN:
251006
AF XY:
0.000354
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000894
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00240
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000133
AC:
194
AN:
1460188
Hom.:
0
Cov.:
31
AF XY:
0.000143
AC XY:
104
AN XY:
726452
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33362
American (AMR)
AF:
0.00
AC:
0
AN:
44600
Ashkenazi Jewish (ASJ)
AF:
0.000922
AC:
24
AN:
26044
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.000151
AC:
13
AN:
86234
European-Finnish (FIN)
AF:
0.00189
AC:
101
AN:
53408
Middle Eastern (MID)
AF:
0.000521
AC:
3
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000378
AC:
42
AN:
1110850
Other (OTH)
AF:
0.000183
AC:
11
AN:
60272
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
12
25
37
50
62
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000250
AC:
38
AN:
151886
Hom.:
0
Cov.:
32
AF XY:
0.000310
AC XY:
23
AN XY:
74232
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41472
American (AMR)
AF:
0.00
AC:
0
AN:
15214
Ashkenazi Jewish (ASJ)
AF:
0.00144
AC:
5
AN:
3464
East Asian (EAS)
AF:
0.000782
AC:
4
AN:
5118
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00217
AC:
23
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000884
AC:
6
AN:
67882
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000134
Hom.:
0
Bravo
AF:
0.000102
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Congenital hyperammonemia, type I Benign:2
Dec 16, 2019
Natera, Inc.
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Nov 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Sep 01, 2017
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

CPS1-related disorder Benign:1
Aug 15, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.39
CADD
Benign
1.8
DANN
Benign
0.45
PhyloP100
2.3
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs140726293; hg19: chr2-211476870; API