rs202247809

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_014252.4(SLC25A15):​c.847C>T​(p.Leu283Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,216 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 Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L283L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLC25A15
NM_014252.4 missense

Scores

6
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1O:1

Conservation

PhyloP100: 3.36

Publications

4 publications found
Variant links:
Genes affected
SLC25A15 (HGNC:10985): (solute carrier family 25 member 15) This gene is a member of the mitochondrial carrier family. The encoded protein transports ornithine across the inner mitochondrial membrane from the cytosol to the mitochondrial matrix. The protein is an essential component of the urea cycle, and functions in ammonium detoxification and biosynthesis of the amino acid arginine. Mutations in this gene result in hyperornithinemia-hyperammonemia-homocitrullinuria (HHH) syndrome. There is a pseudogene of this locus on the Y chromosome.[provided by RefSeq, May 2009]
TPTE2P5 (HGNC:42356): (TPTE2 pseudogene 5)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 15 curated pathogenic missense variants (we use a threshold of 10). The gene has 4 curated benign missense variants. Gene score misZ: 0.10098 (below the threshold of 3.09). Trascript score misZ: 1.3225 (below the threshold of 3.09). GenCC associations: The gene is linked to ornithine translocase deficiency.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.936

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC25A15NM_014252.4 linkc.847C>T p.Leu283Phe missense_variant Exon 7 of 7 ENST00000338625.9 NP_055067.1 Q9Y619
TPTE2P5NR_038258.1 linkn.623-8884G>A intron_variant Intron 7 of 7
TPTE2P5NR_038259.1 linkn.452-8884G>A intron_variant Intron 5 of 5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC25A15ENST00000338625.9 linkc.847C>T p.Leu283Phe missense_variant Exon 7 of 7 1 NM_014252.4 ENSP00000342267.4 Q9Y619

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251182
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460216
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726444
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33428
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86184
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4642
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111746
Other (OTH)
AF:
0.00
AC:
0
AN:
60256
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000653
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Aug 19, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: SLC25A15 c.847C>T (p.Leu283Phe) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4e-06 in 251182 control chromosomes. c.847C>T has been reported in the literature in at least one compound heterozygous individual affected with Hyperornithinemia-Hyperammonemia-Homocitrullinuria Syndrome (e.g., Tessa_2009). These data do not allow any conclusion about variant significance. At least one publication reports experimental evidence evaluating an impact on protein function. The most pronounced variant effect results in 4%-19% of normal activity (Tessa_2009). The following publication has been ascertained in the context of this evaluation (PMID: 19242930). ClinVar contains an entry for this variant (Variation ID: 38404). Based on the evidence outlined above, the variant was classified as VUS-possibly pathogenic. -

Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome Other:1
-
GeneReviews
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.94
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.50
D
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.058
D
MetaRNN
Pathogenic
0.94
D
MetaSVM
Uncertain
-0.13
T
MutationAssessor
Benign
1.6
L
PhyloP100
3.4
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-3.7
D
REVEL
Pathogenic
0.74
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0060
D
Polyphen
0.99
D
Vest4
0.89
MutPred
0.82
Loss of helix (P = 0.1299);
MVP
0.92
MPC
0.55
ClinPred
0.98
D
GERP RS
4.2
Varity_R
0.82
gMVP
0.71
Mutation Taster
=26/74
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs202247809; hg19: chr13-41383744; API