Variant chr17-43818087-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001932.6(MPP3):c.905C>T(p.Ala302Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000124 in 1,569,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

MPP3
NM_001932.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.55

Variant links:

Genes affected

MPP3 (HGNC:7221): (MAGUK p55 scaffold protein 3) This gene product is a member of a family of membrane-associated proteins termed MAGUKs (membrane-associated guanylate kinase homologs). MAGUKs interact with the cytoskeleton and regulate cell proliferation, signaling pathways, and intracellular junctions. This protein contains a conserved sequence, called the SH3 (src homology 3) motif, found in several other proteins that associate with the cytoskeleton and are suspected to play important roles in signal transduction. Alternatively spliced transcript variants have been identified. One transcript variant is experimentally supported, but it doesn't encode a protein. [provided by RefSeq, Jul 2008]

MPP3 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.043807894).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MPP3	NM_001932.6 linkuse as main transcript	c.905C>T	p.Ala302Val	missense_variant	12/20	ENST00000398389.9	NP_001923.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MPP3	ENST00000398389.9 linkuse as main transcript	c.905C>T	p.Ala302Val	missense_variant	12/20	1	NM_001932.6	ENSP00000381425	P1	Q13368-1

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000713

AC:

AN:

196306

Hom.:

AF XY:

0.0000746

AC XY:

AN XY:

107206

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000177

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000735

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000679

Gnomad OTH exome

AF:

0.000440

GnomAD4 exome

AF:

0.000121

AC:

171

AN:

1417318

Hom.:

Cov.:

AF XY:

0.000123

AC XY:

AN XY:

701950

show subpopulations

Gnomad4 AFR exome

AF:

0.0000633

Gnomad4 AMR exome

AF:

0.000250

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000275

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000155

Gnomad4 NFE exome

AF:

0.000126

Gnomad4 OTH exome

AF:

0.000206

GnomAD4 genome

AF:

0.000151

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000189

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000116

Hom.:

Bravo

AF:

0.000144

ExAC

AF:

0.0000498

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 02, 2024

The c.905C>T (p.A302V) alteration is located in exon 12 (coding exon 10) of the MPP3 gene. This alteration results from a C to T substitution at nucleotide position 905, causing the alanine (A) at amino acid position 302 to be replaced by a valine (V). 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

0.094

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.69

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.016

.;T

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.31

FATHMM_MKL

Benign

0.56

LIST_S2

Benign

0.84

T;T

M_CAP

Benign

0.0059

MetaRNN

Benign

0.044

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

.;L

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

0.35

N;N

REVEL

Benign

0.045

Sift

Benign

0.63

T;T

Sift4G

Benign

0.57

T;T

Polyphen

0.0030

B;B

Vest4

0.14

MVP

0.40

MPC

0.44

ClinPred

0.032

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.034

gMVP

0.19

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

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