rs756998699

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000387.6(SLC25A20):​c.10C>T​(p.Gln4*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000012 in 1,421,010 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 Likely pathogenic (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

SLC25A20
NM_000387.6 stop_gained

Scores

1
2
3

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 0.440

Publications

3 publications found
Variant links:
Genes affected
SLC25A20 (HGNC:1421): (solute carrier family 25 member 20) This gene product is one of several closely related mitochondrial-membrane carrier proteins that shuttle substrates between cytosol and the intramitochondrial matrix space. This protein mediates the transport of acylcarnitines into mitochondrial matrix for their oxidation by the mitochondrial fatty acid-oxidation pathway. Mutations in this gene are associated with carnitine-acylcarnitine translocase deficiency, which can cause a variety of pathological conditions such as hypoglycemia, cardiac arrest, hepatomegaly, hepatic dysfunction and muscle weakness, and is usually lethal in new born and infants. [provided by RefSeq, Jul 2008]
SLC25A20 Gene-Disease associations (from GenCC):
  • carnitine-acylcarnitine translocase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, ClinGen, Orphanet, Ambry Genetics, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 18 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 59 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 3-48898785-G-A is Pathogenic according to our data. Variant chr3-48898785-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 203941.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000387.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC25A20
NM_000387.6
MANE Select
c.10C>Tp.Gln4*
stop_gained
Exon 1 of 9NP_000378.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC25A20
ENST00000319017.5
TSL:1 MANE Select
c.10C>Tp.Gln4*
stop_gained
Exon 1 of 9ENSP00000326305.4
SLC25A20
ENST00000430379.5
TSL:3
c.10C>Tp.Gln4*
stop_gained
Exon 1 of 7ENSP00000388986.1
SLC25A20
ENST00000440964.1
TSL:2
n.10C>T
non_coding_transcript_exon
Exon 1 of 10ENSP00000388563.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
181278
AF XY:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000120
AC:
17
AN:
1421010
Hom.:
0
Cov.:
31
AF XY:
0.00000995
AC XY:
7
AN XY:
703284
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32506
American (AMR)
AF:
0.00
AC:
0
AN:
38518
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25422
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37390
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81106
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50008
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5648
European-Non Finnish (NFE)
AF:
0.0000156
AC:
17
AN:
1091628
Other (OTH)
AF:
0.00
AC:
0
AN:
58784
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.457
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000340
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000339
AC:
4

ClinVar

ClinVar submissions as Germline

Significance:Pathogenic/Likely pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
4
-
-
Carnitine acylcarnitine translocase deficiency (4)
1
-
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Uncertain
0.010
CADD
Pathogenic
29
DANN
Uncertain
0.99
Eigen
Benign
0.065
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.45
N
PhyloP100
0.44
Vest4
0.39
GERP RS
-4.2
PromoterAI
-0.011
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Mutation Taster
=17/183
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: rs756998699; hg19: chr3-48936218; API