rs1401946958

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_002846.4(PTPRN):​c.2846G>A​(p.Arg949Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000387 in 1,551,602 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: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

PTPRN
NM_002846.4 missense

Scores

12
6
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.41

Publications

0 publications found
Variant links:
Genes affected
PTPRN (HGNC:9676): (protein tyrosine phosphatase receptor type N) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP possesses an extracellular region, a single transmembrane region, and a single catalytic domain, and thus represents a receptor-type PTP. This PTP was found to be an autoantigen that is reactive with insulin-dependent diabetes mellitus (IDDM) patient sera, and thus may be a potential target of autoimmunity in diabetes mellitus. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Dec 2010]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.977

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PTPRNNM_002846.4 linkc.2846G>A p.Arg949Gln missense_variant Exon 22 of 23 ENST00000295718.7 NP_002837.1 Q16849-1Q96IA0
PTPRNNM_001199763.2 linkc.2759G>A p.Arg920Gln missense_variant Exon 21 of 22 NP_001186692.1 Q16849-2
PTPRNNM_001199764.2 linkc.2576G>A p.Arg859Gln missense_variant Exon 22 of 23 NP_001186693.1 Q16849-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PTPRNENST00000295718.7 linkc.2846G>A p.Arg949Gln missense_variant Exon 22 of 23 1 NM_002846.4 ENSP00000295718.2 Q16849-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152148
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000638
AC:
1
AN:
156772
AF XY:
0.0000121
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000881
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000357
AC:
5
AN:
1399454
Hom.:
0
Cov.:
32
AF XY:
0.00000145
AC XY:
1
AN XY:
690250
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31598
American (AMR)
AF:
0.00
AC:
0
AN:
35700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25180
East Asian (EAS)
AF:
0.0000280
AC:
1
AN:
35738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49306
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5680
European-Non Finnish (NFE)
AF:
0.00000371
AC:
4
AN:
1078994
Other (OTH)
AF:
0.00
AC:
0
AN:
58018
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.535
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000657
AC:
1
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
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

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 01, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.2846G>A (p.R949Q) alteration is located in exon 22 (coding exon 22) of the PTPRN gene. This alteration results from a G to A substitution at nucleotide position 2846, causing the arginine (R) at amino acid position 949 to be replaced by a glutamine (Q). 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
0.90
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Pathogenic
0.23
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.91
.;D;.
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.88
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D;D;D
M_CAP
Uncertain
0.14
D
MetaRNN
Pathogenic
0.98
D;D;D
MetaSVM
Uncertain
0.48
D
MutationAssessor
Pathogenic
4.2
.;H;.
PhyloP100
7.4
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-3.9
D;D;.
REVEL
Uncertain
0.58
Sift
Uncertain
0.0010
D;D;.
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
.;D;.
Vest4
0.95
MutPred
0.93
.;Gain of disorder (P = 0.1797);.;
MVP
0.78
MPC
1.4
ClinPred
1.0
D
GERP RS
4.6
Varity_R
0.90
gMVP
0.96
Mutation Taster
=48/52
disease causing

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: rs1401946958; hg19: chr2-220155282; API