Genetic Variant NM_022788.5:c.18C>A (chr3-151338828-G-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2

The NM_022788.5(P2RY12):c.18C>A(p.Asn6Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,296 control chromosomes in the GnomAD database, with no homozygous occurrence. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N6N) has been classified as Benign.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

P2RY12
NM_022788.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.08

Publications

68 publications found

Variant links:

Genes affected

P2RY12 (HGNC:18124): (purinergic receptor P2Y12) The product of this gene belongs to the family of G-protein coupled receptors. This family has several receptor subtypes with different pharmacological selectivity, which overlaps in some cases, for various adenosine and uridine nucleotides. This receptor is involved in platelet aggregation, and is a potential target for the treatment of thromboembolisms and other clotting disorders. Mutations in this gene are implicated in bleeding disorder, platelet type 8 (BDPLT8). Alternative splicing results in multiple transcript variants of this gene. [provided by RefSeq, Jul 2013]

P2RY12 links:

MED12L (HGNC:16050): (mediator complex subunit 12L) The protein encoded by this gene is part of the Mediator complex, which is involved in transcriptional coactivation of nearly all RNA polymerase II-dependent genes. The Mediator complex links gene-specific transcriptional activators with the basal transcription machinery. [provided by RefSeq, May 2010]

MED12L Gene-Disease associations (from GenCC):

Nizon-Isidor syndrome
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Ambry Genetics
autosomal dominant non-syndromic intellectual disability
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

MED12L links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity P2Y12_HUMAN

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
P2RY12	NM_022788.5 link	c.18C>A	p.Asn6Lys	missense_variant	Exon 3 of 3	ENST00000302632.4	NP_073625.1	Q9H244A8K7T1
MED12L	NM_001393769.1 link	c.2251-11231G>T		intron_variant	Intron 16 of 44	ENST00000687756.1	NP_001380698.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
P2RY12	ENST00000302632.4 link	c.18C>A	p.Asn6Lys	missense_variant	Exon 3 of 3	1	NM_022788.5	ENSP00000307259.4		Q9H244
MED12L	ENST00000687756.1 link	c.2251-11231G>T		intron_variant	Intron 16 of 44		NM_001393769.1	ENSP00000508695.1		A0A8I5KX78

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250832

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461296

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726980

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.00

AC:

AN:

44656

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53394

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111572

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.41

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.23

Eigen

Benign

-0.022

Eigen_PC

Benign

0.037

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.51

M_CAP

Benign

0.040

MetaRNN

Uncertain

0.64

MetaSVM

Benign

-0.68

MutationAssessor

Benign

1.9

PhyloP100

1.1

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-1.9

REVEL

Benign

0.097

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.011

Polyphen

0.86

Vest4

0.35

MutPred

0.43

Gain of ubiquitination at N6 (P = 0.0039);

MVP

0.86

MPC

0.37

ClinPred

0.60

GERP RS

4.1

Varity_R

0.13

gMVP

0.25

Mutation Taster

=72/28

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.18

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over