3-183833731-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018622.7(PARL):​c.923C>T​(p.Ala308Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,449,962 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PARL
NM_018622.7 missense

Scores

6
9
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0
Variant links:
Genes affected
PARL (HGNC:18253): (presenilin associated rhomboid like) This gene encodes a member of the rhomboid family of intramembrane serine proteases that is localized to the inner mitochondrial membrane. The encoded protein regulates mitochondrial remodeling and apoptosis through regulated substrate proteolysis. Proteolytic processing of the encoded protein results in the release of a small peptide, P-beta, which may transit to the nucleus. Mutations in this gene may be associated with Parkinson's disease. [provided by RefSeq, May 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.813

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PARLNM_018622.7 linkuse as main transcriptc.923C>T p.Ala308Val missense_variant 8/10 ENST00000317096.9 NP_061092.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PARLENST00000317096.9 linkuse as main transcriptc.923C>T p.Ala308Val missense_variant 8/101 NM_018622.7 ENSP00000325421 P1Q9H300-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251448
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135894
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1449962
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
722210
show subpopulations
Gnomad4 AFR exome
AF:
0.0000602
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 06, 2021The c.923C>T (p.A308V) alteration is located in exon 8 (coding exon 8) of the PARL gene. This alteration results from a C to T substitution at nucleotide position 923, causing the alanine (A) at amino acid position 308 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.92
BayesDel_addAF
Uncertain
0.065
T
BayesDel_noAF
Uncertain
0.040
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.17
.;.;T;.
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Benign
0.024
T
MetaRNN
Pathogenic
0.81
D;D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.4
.;.;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-3.7
.;.;D;D
REVEL
Uncertain
0.45
Sift
Uncertain
0.0020
.;.;D;D
Sift4G
Uncertain
0.011
.;.;D;D
Polyphen
0.97, 0.98
.;.;D;D
Vest4
0.97, 0.95
MutPred
0.69
Loss of loop (P = 0.0804);.;Loss of loop (P = 0.0804);.;
MVP
0.89
MPC
0.53
ClinPred
0.98
D
GERP RS
5.4
Varity_R
0.72
gMVP
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs965446860; hg19: chr3-183551519; API