rs768643552

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_015160.3(PMPCA):​c.1066G>A​(p.Gly356Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,292 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 (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

PMPCA
NM_015160.3 missense

Scores

10
6
3

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.72

Publications

7 publications found
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]
PMPCA Gene-Disease associations (from GenCC):
  • mitochondrial disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • autosomal recessive spinocerebellar ataxia 2
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.946
PP5
Variant 9-136418630-G-A is Pathogenic according to our data. Variant chr9-136418630-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 221553.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PMPCANM_015160.3 linkc.1066G>A p.Gly356Ser missense_variant Exon 9 of 13 ENST00000371717.8 NP_055975.1 Q10713-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PMPCAENST00000371717.8 linkc.1066G>A p.Gly356Ser missense_variant Exon 9 of 13 1 NM_015160.3 ENSP00000360782.3 Q10713-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251310
AF XY:
0.00000736
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461292
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727004
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33466
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53400
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000900
AC:
10
AN:
1111490
Other (OTH)
AF:
0.00
AC:
0
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.520
Heterozygous variant carriers
0
1
2
3
4
5
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.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Hypertrophic cardiomyopathy;C0020258:Normal pressure hydrocephalus;C0029124:Optic atrophy;C0241816:Global brain atrophy;C0456909:Blindness;C1837397:Severe global developmental delay;C1839437:Chronic lactic acidosis;C1854699:Diffuse cerebellar atrophy;C1860834:Floppy infant;C1865916:Bilateral ptosis;C1865918:Restrictive external ophthalmoplegia;C2315100:Failure to thrive;C3203358:Hypoventilation Pathogenic:1
Jan 22, 2016
Gene Discovery Core-Manton Center, Boston Children's Hospital
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.040
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.34
T;.;.
Eigen
Pathogenic
0.93
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D;D;D
M_CAP
Uncertain
0.26
D
MetaRNN
Pathogenic
0.95
D;D;D
MetaSVM
Benign
-0.31
T
MutationAssessor
Pathogenic
3.3
M;.;.
PhyloP100
9.7
PrimateAI
Pathogenic
0.89
D
PROVEAN
Pathogenic
-5.1
D;D;D
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0010
D;D;D
Sift4G
Uncertain
0.011
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.87
MutPred
0.81
Gain of phosphorylation at G356 (P = 0.0841);.;.;
MVP
0.64
MPC
0.64
ClinPred
1.0
D
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.78
gMVP
0.92
Mutation Taster
=4/96
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: rs768643552; hg19: chr9-139313082; API