2-210556750-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_001875.5(CPS1):​c.17C>T​(p.Thr6Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,612,608 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 (★). Synonymous variant affecting the same amino acid position (i.e. T6T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

CPS1
NM_001875.5 missense

Scores

8
11

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.15
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23144734).
BP6
Variant 2-210556750-C-T is Benign according to our data. Variant chr2-210556750-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3019243.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPS1NM_001875.5 linkuse as main transcriptc.17C>T p.Thr6Ile missense_variant 1/38 ENST00000233072.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPS1ENST00000233072.10 linkuse as main transcriptc.17C>T p.Thr6Ile missense_variant 1/381 NM_001875.5 P1P31327-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151968
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000967
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000797
AC:
2
AN:
250892
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135588
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.00000274
AC:
4
AN:
1460640
Hom.:
0
Cov.:
32
AF XY:
0.00000551
AC XY:
4
AN XY:
726598
show subpopulations
Gnomad4 AFR exome
AF:
0.0000897
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
151968
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74230
show subpopulations
Gnomad4 AFR
AF:
0.0000967
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

Congenital hyperammonemia, type I Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 11, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Uncertain
0.037
T
BayesDel_noAF
Uncertain
0.0
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.030
T;T;T;.;T;T
Eigen
Benign
-0.15
Eigen_PC
Benign
0.050
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.71
.;T;T;T;T;T
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.23
T;T;T;T;T;T
MetaSVM
Uncertain
0.37
D
MutationAssessor
Benign
0.81
.;.;.;.;L;.
MutationTaster
Benign
0.99
D;D
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-1.0
N;N;N;N;N;.
REVEL
Uncertain
0.34
Sift
Benign
0.066
T;T;T;D;D;.
Sift4G
Uncertain
0.037
D;D;D;T;T;T
Polyphen
0.0
.;.;.;.;B;.
Vest4
0.52, 0.34, 0.43
MVP
0.93
MPC
0.24
ClinPred
0.30
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.083
gMVP
0.63

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: rs144889339; hg19: chr2-211421474; API