chr9-136412085-C-T

Position:

• chr9-136412085-C-T

Variant summary

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

The NM_015160.3(PMPCA):​c.160C>T​(p.Pro54Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PMPCA NM_015160.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.72

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=0.2142756).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PMPCA	NM_015160.3	c.160C>T	p.Pro54Ser	missense_variant	2/13	ENST00000371717.8
PMPCA	XM_005266059.4	c.160C>T	p.Pro54Ser	missense_variant	2/12
PMPCA	NM_001282944.2	c.-139C>T		5_prime_UTR_variant	2/12
PMPCA	NM_001282946.2	c.-139C>T		5_prime_UTR_variant	2/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PMPCA	ENST00000371717.8	c.160C>T	p.Pro54Ser	missense_variant	2/13	1	NM_015160.3	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal recessive spinocerebellar ataxia 2 Uncertain:1

Uncertain significance, criteria provided, single submitter

research

Laboratory of Medical Genetics, University of Torino

Nov 29, 2022

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
BayesDel_addAF	Benign	-0.014	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.37	T
Eigen	Benign	0.074
Eigen_PC	Benign	0.11
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.21	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.6	M
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.53	T
PROVEAN	Uncertain	-3.7	D
REVEL	Benign	0.16
Sift	Uncertain	0.0080	D
Sift4G	Benign	0.14	T
Polyphen		0.072	B
Vest4		0.44
MutPred		0.38		Loss of loop (P = 0.0804);
MVP		0.33
MPC		0.20
ClinPred		0.97	D
GERP RS		3.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.31
gMVP		0.76

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: chr9-139306537;