NM_001015052.3:c.688G>C

Variant names:

• chr16-85583-G-C
• NM_001015052.3:c.688G>C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001015052.3(MPG):​c.688G>C​(p.Asp230His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,738 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MPG NM_001015052.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.93

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]

NPRL3 (HGNC:14124): (NPR3 like, GATOR1 complex subunit) Contributes to GTPase activator activity. Involved in cellular response to amino acid starvation and negative regulation of TOR signaling. Located in lysosomal membrane. Part of GATOR1 complex. Implicated in focal epilepsy. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.87

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MPG	NM_001015052.3	c.688G>C	p.Asp230His	missense_variant	Exon 4 of 4	ENST00000356432.8	NP_001015052.1
NPRL3	NM_001077350.3	c.*1122C>G		3_prime_UTR_variant	Exon 14 of 14	ENST00000611875.5	NP_001070818.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MPG	ENST00000356432.8	c.688G>C	p.Asp230His	missense_variant	Exon 4 of 4	1	NM_001015052.3	ENSP00000348809.4
NPRL3	ENST00000611875	c.*1122C>G		3_prime_UTR_variant	Exon 14 of 14	5	NM_001077350.3	ENSP00000478273.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460738 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726618

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.37
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.081	T;.;.;T
Eigen	Pathogenic	0.75
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.87	D;D;D;D
M_CAP	Benign	0.058	D
MetaRNN	Pathogenic	0.87	D;D;D;D
MetaSVM	Benign	-0.70	T
MutationAssessor	Pathogenic	3.6	.;.;.;H
PrimateAI	Uncertain	0.59	T
PROVEAN	Pathogenic	-5.1	D;D;D;D
REVEL	Uncertain	0.53
Sift	Uncertain	0.012	D;D;D;D
Sift4G	Uncertain	0.022	D;D;D;D
Polyphen		1.0	.;.;.;D
Vest4		0.89, 0.89, 0.87
MutPred		0.70		.;.;.;Loss of disorder (P = 0.0809);
MVP		0.76
MPC		0.37
ClinPred		0.99	D
GERP RS		4.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.77
gMVP		0.80

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-135582;