chr6-166365989-C-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM1PM2PM5PP3_StrongPP5_Moderate

The NM_016098.4(MPC1):​c.290G>A​(p.Arg97Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,612,948 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R97W) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MPC1
NM_016098.4 missense

Scores

9
7
3

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 7.37
Variant links:
Genes affected
MPC1 (HGNC:21606): (mitochondrial pyruvate carrier 1) The protein encoded by this gene is part of an MPC1/MPC2 heterodimer that is responsible for transporting pyruvate into mitochondria. The encoded protein is found in the inner mitochondrial membrane. Defects in this gene are a cause of mitochondrial pyruvate carrier deficiency. Several transcript variants, some protein coding and one non-protein coding, have been found for this gene. [provided by RefSeq, Aug 2012]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PM1
In a topological_domain Mitochondrial matrix (size 37) in uniprot entity MPC1_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_016098.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr6-166365990-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 35561.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.989
PP5
Variant 6-166365989-C-T is Pathogenic according to our data. Variant chr6-166365989-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1236163.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MPC1NM_016098.4 linkuse as main transcriptc.290G>A p.Arg97Gln missense_variant 4/5 ENST00000360961.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MPC1ENST00000360961.11 linkuse as main transcriptc.290G>A p.Arg97Gln missense_variant 4/55 NM_016098.4 P3

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152076
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
1460754
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726622
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:
0.0000131
AC:
2
AN:
152194
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74414
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Mitochondrial pyruvate carrier deficiency Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testing;in vitroDepartment of Neurology, Beijing Children's Hospital, Capital Medical UniversitySep 02, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.15
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.89
D;D;D;D
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Benign
0.0011
N
LIST_S2
Uncertain
0.97
D;.;D;D
M_CAP
Uncertain
0.15
D
MetaRNN
Pathogenic
0.99
D;D;D;D
MetaSVM
Uncertain
0.65
D
MutationAssessor
Pathogenic
3.7
H;.;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-3.9
D;D;.;.
REVEL
Pathogenic
0.75
Sift
Uncertain
0.0010
D;T;.;.
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
1.0
D;.;.;.
Vest4
0.97
MutPred
0.95
Loss of MoRF binding (P = 0.0325);.;.;Loss of MoRF binding (P = 0.0325);
MVP
0.84
MPC
1.6
ClinPred
1.0
D
GERP RS
3.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.91
gMVP
0.94

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs1779135449; hg19: chr6-166779477; COSMIC: COSV59133092; API