chr3-39391513-C-T

Variant summary

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

The NM_017875.4(SLC25A38):​c.349C>T​(p.Arg117Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000204 in 1,614,062 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: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

SLC25A38
NM_017875.4 stop_gained

Scores

3
3
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 0.575
Variant links:
Genes affected
SLC25A38 (HGNC:26054): (solute carrier family 25 member 38) This gene is a member of the mitochondrial carrier family. The encoded protein is required during erythropoiesis and is important for the biosynthesis of heme. Mutations in this gene are the cause of autosomal congenital sideroblastic anemia (anemia, sideroblastic, 2, pyridoxine-refractory). A related pseudogene is found on chromosome 1. [provided by RefSeq, Aug 2017]

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 3-39391513-C-T is Pathogenic according to our data. Variant chr3-39391513-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 1118.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC25A38NM_017875.4 linkuse as main transcriptc.349C>T p.Arg117Ter stop_gained 4/7 ENST00000650617.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC25A38ENST00000650617.1 linkuse as main transcriptc.349C>T p.Arg117Ter stop_gained 4/7 NM_017875.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152178
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.0000294
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251464
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135904
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461884
Hom.:
0
Cov.:
31
AF XY:
0.0000193
AC XY:
14
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000198
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152178
Hom.:
0
Cov.:
33
AF XY:
0.0000673
AC XY:
5
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.0000997
Hom.:
0
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingGeneDxSep 21, 2018The R117X variant in the SLC25A38 gene has been reported previously in both the homozygous state, and the heterozygous state in the presence of a second SLC25A38 variant, in association with sideroblastic anemia (Guernsey et al., 2009). This variant is predicted to cause loss of normal protein function either through protein truncation or nonsense-mediated mRNA decay. This variant is not observed at a significant frequency in large population cohorts (Lek et al., 2016). We interpret R117X as a pathogenic variant. -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 28, 2022This sequence change creates a premature translational stop signal (p.Arg117*) in the SLC25A38 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in SLC25A38 are known to be pathogenic (PMID: 19412178, 25985931). This variant is present in population databases (rs121918330, gnomAD 0.004%). This premature translational stop signal has been observed in individual(s) with sideroblastic anemia (PMID: 19412178, 21393332, 32605921). ClinVar contains an entry for this variant (Variation ID: 1118). For these reasons, this variant has been classified as Pathogenic. -
Sideroblastic anemia 2 Pathogenic:2
Pathogenic, no assertion criteria providedliterature onlyOMIMJun 01, 2009- -
Pathogenic, criteria provided, single submitterresearchMark Fleming Laboratory, Boston Children's HospitalJun 01, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.55
D
BayesDel_noAF
Pathogenic
0.60
CADD
Pathogenic
38
DANN
Uncertain
1.0
Eigen
Pathogenic
0.76
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Uncertain
0.84
D
MutationTaster
Benign
1.0
A
Vest4
0.29
GERP RS
4.2

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: rs121918330; hg19: chr3-39433004; COSMIC: COSV99827960; COSMIC: COSV99827960; API