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rs963172852

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PM5PP5_Moderate

The NM_015160.3(PMPCA):c.1130C>T(p.Ala377Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,612,730 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A377T) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

PMPCA
NM_015160.3 missense

Scores

3
10
6

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 7.52
Variant links:
Genes affected
PMPCA (HGNC:18667): (peptidase, mitochondrial processing subunit alpha) The protein encoded by this gene is found in the mitochondrion, where it represents the alpha subunit of a proteolytic heterodimer. This heterodimer is responsible for cleaving the transit peptide from nuclear-encoded mitochondrial proteins. Defects in this gene are a cause of spinocerebellar ataxia, autosomal recessive 2. [provided by RefSeq, Mar 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr9-136418847-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 221552.Status of the report is no_assertion_criteria_provided, 0 stars.
PP5
Variant 9-136418848-C-T is Pathogenic according to our data. Variant chr9-136418848-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 521567.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PMPCANM_015160.3 linkuse as main transcriptc.1130C>T p.Ala377Val missense_variant 10/13 ENST00000371717.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PMPCAENST00000371717.8 linkuse as main transcriptc.1130C>T p.Ala377Val missense_variant 10/131 NM_015160.3 P1Q10713-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152176
Hom.:
0
Cov.:
33
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:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000798
AC:
2
AN:
250722
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135598
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1460436
Hom.:
0
Cov.:
31
AF XY:
0.0000151
AC XY:
11
AN XY:
726604
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152294
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000855
Hom.:
0
Bravo
AF:
0.0000227
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingAmbry GeneticsFeb 01, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.88
BayesDel_addAF
Benign
0.010
T
BayesDel_noAF
Uncertain
-0.050
Cadd
Pathogenic
32
Dann
Uncertain
1.0
DEOGEN2
Benign
0.30
T;.;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Benign
0.065
D
MetaRNN
Uncertain
0.74
D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-3.5
D;D;D
REVEL
Uncertain
0.36
Sift
Uncertain
0.0020
D;D;T
Sift4G
Uncertain
0.016
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.91
MutPred
0.65
Loss of disorder (P = 0.0632);.;.;
MVP
0.29
MPC
0.63
ClinPred
0.98
D
GERP RS
5.1
Varity_R
0.88
gMVP
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs963172852; hg19: chr9-139313300; API