rs149270851

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001142395.2(PRRG1):​c.573C>A​(p.Asp191Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000687 in 1,208,250 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 27 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.000075 ( 0 hom. 27 hem. )

Consequence

PRRG1
NM_001142395.2 missense

Scores

1
6
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.821

Publications

1 publications found
Variant links:
Genes affected
PRRG1 (HGNC:9469): (proline rich and Gla domain 1) This gene encodes a vitamin K-dependent, gamma-carboxyglutamic acid (Gla)-containing, single-pass transmembrane protein. This protein contains a Gla domain at the N-terminus, preceded by a propeptide sequence required for post-translational gamma-carboxylation of specific glutamic acid residues by a vitamin K-dependent gamma-carboxylase. The C-terminus is proline-rich containing PPXY and PXXP motifs found in a variety of signaling and cytoskeletal proteins. This gene is highly expressed in the spinal cord. Several alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Mar 2010]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.20279625).
BS2
High Hemizygotes in GnomAdExome4 at 27 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRRG1NM_001142395.2 linkc.573C>A p.Asp191Glu missense_variant Exon 4 of 4 ENST00000378628.9 NP_001135867.1 O14668-1Q8NEK6
PRRG1NM_000950.3 linkc.573C>A p.Asp191Glu missense_variant Exon 5 of 5 NP_000941.1 O14668-1Q8NEK6
PRRG1NM_001173489.2 linkc.573C>A p.Asp191Glu missense_variant Exon 5 of 5 NP_001166960.1 O14668-1
PRRG1NM_001173490.2 linkc.573C>A p.Asp191Glu missense_variant Exon 4 of 4 NP_001166961.1 O14668-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRRG1ENST00000378628.9 linkc.573C>A p.Asp191Glu missense_variant Exon 4 of 4 1 NM_001142395.2 ENSP00000367894.4 O14668-1
ENSG00000250349ENST00000465127.1 linkc.171+27537C>A intron_variant Intron 3 of 8 5 ENSP00000417050.1 B4E171

Frequencies

GnomAD3 genomes
AF:
0.00000900
AC:
1
AN:
111108
Hom.:
0
Cov.:
23
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000189
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000548
AC:
1
AN:
182486
AF XY:
0.00
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:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000747
AC:
82
AN:
1097142
Hom.:
0
Cov.:
32
AF XY:
0.0000745
AC XY:
27
AN XY:
362536
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26386
American (AMR)
AF:
0.00
AC:
0
AN:
35184
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19353
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30201
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54009
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40503
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4133
European-Non Finnish (NFE)
AF:
0.0000939
AC:
79
AN:
841326
Other (OTH)
AF:
0.0000652
AC:
3
AN:
46047
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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
AF:
0.00000900
AC:
1
AN:
111108
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33296
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30492
American (AMR)
AF:
0.00
AC:
0
AN:
10409
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2640
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3559
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2578
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5991
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
238
European-Non Finnish (NFE)
AF:
0.0000189
AC:
1
AN:
53024
Other (OTH)
AF:
0.00
AC:
0
AN:
1493
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000149
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 22, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.573C>A (p.D191E) alteration is located in exon 5 (coding exon 3) of the PRRG1 gene. This alteration results from a C to A substitution at nucleotide position 573, causing the aspartic acid (D) at amino acid position 191 to be replaced by a glutamic acid (E). 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
0.21
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
-0.070
CADD
Benign
14
DANN
Uncertain
0.99
DEOGEN2
Benign
0.031
T;T;T;T
FATHMM_MKL
Benign
0.64
D
LIST_S2
Benign
0.80
.;.;T;.
M_CAP
Pathogenic
0.87
D
MetaRNN
Benign
0.20
T;T;T;T
MetaSVM
Uncertain
0.68
D
MutationAssessor
Benign
1.4
L;L;L;L
PhyloP100
0.82
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-1.5
N;N;N;N
REVEL
Uncertain
0.44
Sift
Benign
0.059
T;T;T;T
Sift4G
Benign
0.36
T;T;T;T
Polyphen
0.37
B;B;B;B
Vest4
0.36
MutPred
0.27
Gain of glycosylation at P193 (P = 0.0764);Gain of glycosylation at P193 (P = 0.0764);Gain of glycosylation at P193 (P = 0.0764);Gain of glycosylation at P193 (P = 0.0764);
MVP
0.28
MPC
0.53
ClinPred
0.43
T
GERP RS
-0.70
Varity_R
0.43
gMVP
0.22
Mutation Taster
=73/27
polymorphism

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: rs149270851; hg19: chrX-37312790; API