7-96191189-G-T

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_014251.3(SLC25A13):​c.674C>A​(p.Ser225*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,461,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

SLC25A13
NM_014251.3 stop_gained

Scores

5
1
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:7O:1

Conservation

PhyloP100: 10.0
Variant links:
Genes affected
SLC25A13 (HGNC:10983): (solute carrier family 25 member 13) This gene is a member of the mitochondrial carrier family. The encoded protein contains four EF-hand Ca(2+) binding motifs in the N-terminal domain, and localizes to mitochondria. The protein catalyzes the exchange of aspartate for glutamate and a proton across the inner mitochondrial membrane, and is stimulated by calcium on the external side of the inner mitochondrial membrane. Mutations in this gene result in citrullinemia, type II. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 7-96191189-G-T is Pathogenic according to our data. Variant chr7-96191189-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 6004.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-96191189-G-T is described in Lovd as [Pathogenic]. Variant chr7-96191189-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC25A13NM_014251.3 linkuse as main transcriptc.674C>A p.Ser225* stop_gained 7/18 ENST00000265631.10 NP_055066.1 Q9UJS0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC25A13ENST00000265631.10 linkuse as main transcriptc.674C>A p.Ser225* stop_gained 7/181 NM_014251.3 ENSP00000265631.6 Q9UJS0-1
SLC25A13ENST00000416240.6 linkuse as main transcriptc.674C>A p.Ser225* stop_gained 7/181 ENSP00000400101.2 Q9UJS0-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251160
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135742
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
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:
0.0000103
AC:
15
AN:
1461772
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727202
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000353
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000163
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:7Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Citrullinemia type II Pathogenic:2Other:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJun 01, 1999- -
Pathogenic, criteria provided, single submitterreference populationSoonchunhyang University Bucheon Hospital, Soonchunhyang University Medical CenterMar 18, 2016- -
not provided, no classification providedliterature onlyGeneReviews-- -
Neonatal intrahepatic cholestasis due to citrin deficiency Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingBaylor Genetics-- -
Pathogenic, criteria provided, single submitterclinical testingVictorian Clinical Genetics Services, Murdoch Childrens Research InstituteMar 31, 2022Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as pathogenic. The following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with neonatal-onset citrullinemia type II (MIM# 605814) and adult-onset citrullinemia type II (MIM#603471). (I) 0106 - This gene is associated with autosomal recessive disease. (I) 0201 - Variant is predicted to cause nonsense-mediated decay (NMD) and loss of protein (premature termination codon is located at least 54 nucleotides upstream of the final exon-exon junction). (SP) 0251 - This variant is heterozygous. (I) 0304 - Variant is present in gnomAD (v2) <0.01 for a recessive condition (1 heterozygote, 0 homozygotes). (SP) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been reported as pathogenic multiple times in ClinVar. It has also been reported in multiple individuals with citrin deficiency (PMID: 29659898; 34006251). (SP) 0701 - Other NMD predicted variants comparable to the one identified in this case have very strong previous evidence for pathogenicity (ClinVar). (SP) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -
Citrullinemia Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.May 18, 2020- -
Citrin deficiency Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 05, 2023For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 6004). This premature translational stop signal has been observed in individuals with citrin deficiency (PMID: 12512993, 16449956, 29659898). This variant is present in population databases (rs80338719, gnomAD 0.006%). This sequence change creates a premature translational stop signal (p.Ser225*) in the SLC25A13 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in SLC25A13 are known to be pathogenic (PMID: 10369257, 14680984, 27405544). -
Citrullinemia, type II, adult-onset Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsFeb 19, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.66
CADD
Pathogenic
40
DANN
Uncertain
0.99
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.99
D
Vest4
0.80
GERP RS
5.2

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs80338719; hg19: chr7-95820501; API