2-27312589-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_002437.5(MPV17):​c.280G>A​(p.Gly94Arg) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000248 in 1,613,868 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely pathogenic in UniProt.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MPV17
NM_002437.5 missense, splice_region

Scores

5
8
1
Splicing: ADA: 0.01275
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.12
Variant links:
Genes affected
MPV17 (HGNC:7224): (mitochondrial inner membrane protein MPV17) This gene encodes a mitochondrial inner membrane protein that is implicated in the metabolism of reactive oxygen species. Mutations in this gene have been associated with the hepatocerebral form of mitochondrial DNA depletion syndrome (MDDS). [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a chain Protein Mpv17 (size 175) in uniprot entity MPV17_HUMAN there are 13 pathogenic changes around while only 1 benign (93%) in NM_002437.5
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.846

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MPV17NM_002437.5 linkc.280G>A p.Gly94Arg missense_variant, splice_region_variant 5/8 ENST00000380044.6 NP_002428.1 P39210A0A0S2Z3Z9
MPV17XM_005264326.5 linkc.280G>A p.Gly94Arg missense_variant, splice_region_variant 5/8 XP_005264383.1 P39210A0A0S2Z3Z9
MPV17XM_017004151.2 linkc.232G>A p.Gly78Arg missense_variant, splice_region_variant 5/8 XP_016859640.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MPV17ENST00000380044.6 linkc.280G>A p.Gly94Arg missense_variant, splice_region_variant 5/81 NM_002437.5 ENSP00000369383.1 P39210

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461668
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727150
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Uncertain
0.042
T
BayesDel_noAF
Pathogenic
0.29
CADD
Uncertain
26
DANN
Uncertain
0.99
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.95
D
M_CAP
Pathogenic
0.74
D
MetaRNN
Pathogenic
0.85
D
MetaSVM
Uncertain
0.59
D
PROVEAN
Uncertain
-4.2
D
REVEL
Uncertain
0.46
Sift
Pathogenic
0.0
D
Vest4
0.76
MutPred
0.23
Gain of solvent accessibility (P = 0.024);
MVP
0.42
ClinPred
0.97
D
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.013
dbscSNV1_RF
Benign
0.28
SpliceAI score (max)
0.25
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.25
Position offset: 0

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: rs267607257; hg19: chr2-27535456; API