3-183867959-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_018622.7(PARL):ā€‹c.227G>Cā€‹(p.Arg76Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000096 ( 0 hom. )

Consequence

PARL
NM_018622.7 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.30
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 2 ACMG points.

PM1
In a mutagenesis_site Abolishes the beta cleavage. (size 0) in uniprot entity PARL_HUMAN
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18314424).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PARLNM_018622.7 linkuse as main transcriptc.227G>C p.Arg76Thr missense_variant 2/10 ENST00000317096.9 NP_061092.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PARLENST00000317096.9 linkuse as main transcriptc.227G>C p.Arg76Thr missense_variant 2/101 NM_018622.7 ENSP00000325421 P1Q9H300-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
32
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251444
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135890
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461618
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727130
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74358
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:
0.00
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

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 GeneticsJan 23, 2024The c.227G>C (p.R76T) alteration is located in exon 2 (coding exon 2) of the PARL gene. This alteration results from a G to C substitution at nucleotide position 227, causing the arginine (R) at amino acid position 76 to be replaced by a threonine (T). 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
Benign
0.19
BayesDel_addAF
Benign
-0.070
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
20
DANN
Benign
0.96
DEOGEN2
Benign
0.072
.;T;.;T
Eigen
Benign
0.018
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.76
T;T;T;T
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.18
T;T;T;T
MetaSVM
Benign
-0.44
T
MutationAssessor
Uncertain
2.5
.;M;M;.
MutationTaster
Benign
0.93
D;D;D
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-1.0
.;N;N;N
REVEL
Benign
0.28
Sift
Benign
0.10
.;T;T;T
Sift4G
Uncertain
0.048
.;D;D;D
Polyphen
0.034, 0.17
.;B;B;.
Vest4
0.48, 0.47, 0.44
MVP
0.92
MPC
0.21
ClinPred
0.42
T
GERP RS
5.4
Varity_R
0.10
gMVP
0.62

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs755025112; hg19: chr3-183585747; API