NM_015160.3:c.126C>G

Variant names:

• chr9-136412051-C-G
• NM_015160.3:c.126C>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_015160.3(PMPCA):​c.126C>G​(p.Ile42Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,460,992 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PMPCA NM_015160.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.381

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15974274).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PMPCA	NM_015160.3	c.126C>G	p.Ile42Met	missense_variant	Exon 2 of 13	ENST00000371717.8	NP_055975.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PMPCA	ENST00000371717.8	c.126C>G	p.Ile42Met	missense_variant	Exon 2 of 13	1	NM_015160.3	ENSP00000360782.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1460992 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726866

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: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	15
DANN	Uncertain	0.98
DEOGEN2	Benign	0.15	T
Eigen	Benign	-0.34
Eigen_PC	Benign	-0.38
FATHMM_MKL	Benign	0.60	D
LIST_S2	Benign	0.85	T
M_CAP	Benign	0.0056	T
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.4	M
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.053
Sift	Benign	0.076	T
Sift4G	Benign	0.084	T
Polyphen		0.55	P
Vest4		0.29
MutPred		0.25		Gain of disorder (P = 0.0654);
MVP		0.19
MPC		0.31
ClinPred		0.42	T
GERP RS		-0.18
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.11
gMVP		0.55

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-139306503;