Genetic Variant PTPN22:c.829-34G>T (chr1-113848660-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000359785.10(PTPN22):c.829-34G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000126 in 1,423,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PTPN22
ENST00000359785.10 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.321

Publications

0 publications found

Variant links:

Genes affected

PTPN22 (HGNC:9652): (protein tyrosine phosphatase non-receptor type 22) This gene encodes of member of the non-receptor class 4 subfamily of the protein-tyrosine phosphatase family. The encoded protein is a lymphoid-specific intracellular phosphatase that associates with the molecular adapter protein CBL and may be involved in regulating CBL function in the T-cell receptor signaling pathway. Mutations in this gene may be associated with a range of autoimmune disorders including Type 1 Diabetes, rheumatoid arthritis, systemic lupus erythematosus and Graves' disease. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Mar 2009]

PTPN22 links:

AP4B1-AS1 (HGNC:44114): (AP4B1 antisense RNA 1)

AP4B1-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	Protein	UniProt
PTPN22	NM_015967.8 link	c.829-34G>T	intron_variant	Intron 10 of 20	NP_057051.4	Q9Y2R2B4DZW8
PTPN22	NM_001308297.2 link	c.757-34G>T	intron_variant	Intron 9 of 19	NP_001295226.2	Q9Y2R2G3K0T4
PTPN22	NM_001193431.3 link	c.829-34G>T	intron_variant	Intron 10 of 20	NP_001180360.2	Q9Y2R2-4B4DZW8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPN22	ENST00000359785.10 link	c.829-34G>T		intron_variant	Intron 10 of 20	1		ENSP00000352833.5		A0A0B4J1S7

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

151656

Hom.:

Cov.:

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000363

AC:

AN:

220260

AF XY:

0.0000416

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000392

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000604

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000476

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000126

AC:

AN:

1423768

Hom.:

Cov.:

AF XY:

0.0000184

AC XY:

AN XY:

707870

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000643

AC:

AN:

31124

American (AMR)

AF:

0.000115

AC:

AN:

34686

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24512

East Asian (EAS)

AF:

0.00

AC:

AN:

39392

South Asian (SAS)

AF:

0.0000123

AC:

AN:

81210

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50814

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5566

European-Non Finnish (NFE)

AF:

0.00000911

AC:

AN:

1097792

Other (OTH)

AF:

0.0000170

AC:

AN:

58672

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.278

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

151656

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74026

African (AFR)

AF:

0.00

AC:

AN:

41298

American (AMR)

AF:

0.00

AC:

AN:

15248

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10450

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67876

Other (OTH)

AF:

0.00

AC:

AN:

2086

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

2.1

(source)

DANN

Benign

0.75

PhyloP100

-0.32

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over