chr7-78019514-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_012301.4(MAGI2):​c.4169C>A​(p.Ala1390Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000012 in 834,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000012 ( 0 hom. )

Consequence

MAGI2
NM_012301.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0120
Variant links:
Genes affected
MAGI2 (HGNC:18957): (membrane associated guanylate kinase, WW and PDZ domain containing 2) The protein encoded by this gene interacts with atrophin-1. Atrophin-1 contains a polyglutamine repeat, expansion of which is responsible for dentatorubral and pallidoluysian atrophy. This encoded protein is characterized by two WW domains, a guanylate kinase-like domain, and multiple PDZ domains. It has structural similarity to the membrane-associated guanylate kinase homologue (MAGUK) family. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.068088025).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MAGI2NM_012301.4 linkuse as main transcriptc.4169C>A p.Ala1390Asp missense_variant 22/22 ENST00000354212.9 NP_036433.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MAGI2ENST00000354212.9 linkuse as main transcriptc.4169C>A p.Ala1390Asp missense_variant 22/221 NM_012301.4 ENSP00000346151 P4Q86UL8-1

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD4 exome
AF:
0.00000120
AC:
1
AN:
834700
Hom.:
0
Cov.:
31
AF XY:
0.00000259
AC XY:
1
AN XY:
385738
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:
0.00000131
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30

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 submitterclinical testingAmbry GeneticsAug 04, 2023The c.4169C>A (p.A1390D) alteration is located in exon 22 (coding exon 22) of the MAGI2 gene. This alteration results from a C to A substitution at nucleotide position 4169, causing the alanine (A) at amino acid position 1390 to be replaced by an aspartic acid (D). 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
0.14
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
15
DANN
Benign
0.46
DEOGEN2
Benign
0.054
T;T;.;.
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.043
N
LIST_S2
Benign
0.42
T;T;T;T
M_CAP
Benign
0.036
D
MetaRNN
Benign
0.068
T;T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
0.0
.;N;.;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
0.64
.;N;N;.
REVEL
Benign
0.016
Sift
Benign
0.55
.;T;T;.
Sift4G
Benign
0.63
T;T;T;T
Polyphen
0.013, 0.022
.;B;B;.
Vest4
0.25, 0.15
MutPred
0.24
.;Gain of relative solvent accessibility (P = 0.0082);.;.;
MVP
0.26
MPC
1.6
ClinPred
0.031
T
GERP RS
-3.0
Varity_R
0.080
gMVP
0.31

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-77648831; API