Genetic Variant MPG:c.25-147A>T (chr16-79278-A-T) – 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 NM_001015052.3(MPG):c.25-147A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000212 in 1,417,656 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: not found (cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MPG
NM_001015052.3 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.42

Publications

0 publications found

Variant links:

Genes affected

MPG (HGNC:7211): (N-methylpurine DNA glycosylase) Predicted to enable alkylbase DNA N-glycosylase activity. Predicted to be involved in base-excision repair. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

MPG Gene-Disease associations (from GenCC):

schizophrenia
Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

MPG links:

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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=-0.87).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
MPG	NM_001015052.3 link	c.25-147A>T	intron_variant	Intron 1 of 3	ENST00000356432.8	NP_001015052.1	P29372-4
MPG	NM_002434.4 link	c.-15A>T	5_prime_UTR_variant	Exon 2 of 5		NP_002425.2	P29372-1Q1W6H1
MPG	NM_001015054.3 link	c.-12-147A>T	intron_variant	Intron 1 of 3		NP_001015054.1	P29372-5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MPG	ENST00000356432.8 link	c.25-147A>T		intron_variant	Intron 1 of 3	1	NM_001015052.3	ENSP00000348809.4		P29372-4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000212

AC:

AN:

1417656

Hom.:

Cov.:

AF XY:

0.00000285

AC XY:

AN XY:

701654

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32316

American (AMR)

AF:

0.00

AC:

AN:

37462

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25480

East Asian (EAS)

AF:

0.00

AC:

AN:

37204

South Asian (SAS)

AF:

0.0000242

AC:

AN:

82534

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50394

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5716

European-Non Finnish (NFE)

AF:

9.19e-7

AC:

AN:

1087826

Other (OTH)

AF:

0.00

AC:

AN:

58724

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

0.14

(source)

DANN

Benign

0.53

PhyloP100

-2.4

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