rs201407486

Variant names:

• chr2-210592937-C-G
• NM_001875.5:c.1145C>G

Your query was ambiguous. Multiple possible variants found:

• chr2-210592937-C-G
• chr2-210592937-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1 PM2 PM5

The NM_001875.5(CPS1):​c.1145C>G​(p.Pro382Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P382L) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CPS1 NM_001875.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.92

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM1: In a domain Glutamine amidotransferase type-1 (size 185) in uniprot entity CPSM_HUMAN there are 28 pathogenic changes around while only 3 benign (90%) in NM_001875.5
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr2-210592937-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CPS1	NM_001875.5	c.1145C>G	p.Pro382Arg	missense_variant	Exon 11 of 38	ENST00000233072.10	NP_001866.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CPS1	ENST00000233072.10	c.1145C>G	p.Pro382Arg	missense_variant	Exon 11 of 38	1	NM_001875.5	ENSP00000233072.5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.42
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.15
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.90	.;D;D
Eigen	Pathogenic	0.91
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Uncertain	0.97	D;D;D
M_CAP	Uncertain	0.13	D
MetaRNN	Uncertain	0.73	D;D;D
MetaSVM	Pathogenic	0.93	D
MutationAssessor	Pathogenic	3.2	.;M;.
PrimateAI	Uncertain	0.60	T
PROVEAN	Pathogenic	-4.8	D;D;.
REVEL	Pathogenic	0.70
Sift	Uncertain	0.011	D;D;.
Sift4G	Uncertain	0.024	D;D;D
Polyphen		0.98	.;D;.
Vest4		0.66
MutPred		0.54		.;Gain of solvent accessibility (P = 0.0216);Gain of solvent accessibility (P = 0.0216);
MVP		0.97
MPC		0.65
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.62
gMVP		0.90

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-211457661;