Genetic Variant MPPED2:p.Ile207Thr (chr11-30417550-A-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001584.3(MPPED2):c.620T>C(p.Ile207Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000465 in 1,612,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

MPPED2
NM_001584.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.14

Variant links:

Genes affected

MPPED2 (HGNC:1180): (metallophosphoesterase domain containing 2) Predicted to enable manganese ion binding activity; phosphoric diester hydrolase activity; and purine ribonucleotide binding activity. [provided by Alliance of Genome Resources, Apr 2022]

MPPED2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.29249632).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MPPED2	NM_001584.3 link	c.620T>C	p.Ile207Thr	missense_variant	Exon 5 of 7	ENST00000358117.10	NP_001575.1	Q15777-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MPPED2	ENST00000358117.10 link	c.620T>C	p.Ile207Thr	missense_variant	Exon 5 of 7	1	NM_001584.3	ENSP00000350833.4		Q15777-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152080

Hom.:

Cov.:

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251060

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135688

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000353

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000466

AC:

AN:

1460792

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

726756

show subpopulations

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:

0.0000603

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152080

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000823

Hom.:

Bravo

AF:

0.0000453

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 18, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.620T>C (p.I207T) alteration is located in exon 4 (coding exon 4) of the MPPED2 gene. This alteration results from a T to C substitution at nucleotide position 620, causing the isoleucine (I) at amino acid position 207 to be replaced by a threonine (T). 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

Benign

0.10

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.90

DEOGEN2

Benign

0.23

.;T

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.18

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.80

T;T

M_CAP

Benign

0.0087

MetaRNN

Benign

0.29

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.52

N;N

PrimateAI

Pathogenic

0.82

PROVEAN

Benign

0.64

N;N

REVEL

Benign

0.17

Sift

Benign

0.83

T;T

Sift4G

Benign

0.64

T;T

Polyphen

0.0020

.;B

Vest4

0.61

MVP

0.068

MPC

0.95

ClinPred

0.12

GERP RS

4.6

Varity_R

0.091

gMVP

0.90

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over