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GeneBe

10-28089731-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001318170.2(MPP7):​c.1063G>A​(p.Glu355Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,726 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

MPP7
NM_001318170.2 missense

Scores

5
12
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.56
Variant links:
Genes affected
MPP7 (HGNC:26542): (MAGUK p55 scaffold protein 7) The protein encoded by this gene is a member of the p55 Stardust family of membrane-associated guanylate kinase (MAGUK) proteins, which function in the establishment of epithelial cell polarity. This family member forms a complex with the polarity protein DLG1 (discs, large homolog 1) and facilitates epithelial cell polarity and tight junction formation. Polymorphisms in this gene are associated with variations in site-specific bone mineral density (BMD). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

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ACMG classification

Classification made for transcript

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, 0.889

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MPP7NM_001318170.2 linkuse as main transcriptc.1063G>A p.Glu355Lys missense_variant 12/17 ENST00000683449.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MPP7ENST00000683449.1 linkuse as main transcriptc.1063G>A p.Glu355Lys missense_variant 12/17 NM_001318170.2 P1Q5T2T1-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251362
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135856
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:
0.0000462
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000109
AC:
16
AN:
1461604
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727102
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:
0.0000135
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152122
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74290
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Gnomad4 OTH
AF:
0.00

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 GeneticsDec 03, 2021The c.1063G>A (p.E355K) alteration is located in exon 14 (coding exon 11) of the MPP7 gene. This alteration results from a G to A substitution at nucleotide position 1063, causing the glutamic acid (E) at amino acid position 355 to be replaced by a lysine (K). 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
Pathogenic
0.84
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.14
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.50
D;D;D;T
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.94
D;.;.;D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.89
D;D;D;D
MetaSVM
Benign
-0.66
T
MutationAssessor
Pathogenic
3.2
M;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-3.5
D;D;D;D
REVEL
Uncertain
0.51
Sift
Uncertain
0.0030
D;D;D;D
Sift4G
Uncertain
0.0040
D;D;D;D
Polyphen
0.92
P;P;P;.
Vest4
0.85
MutPred
0.72
Gain of methylation at E355 (P = 0.0014);Gain of methylation at E355 (P = 0.0014);Gain of methylation at E355 (P = 0.0014);.;
MVP
0.65
MPC
0.75
ClinPred
0.98
D
GERP RS
5.6
Varity_R
0.64
gMVP
0.91

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.

Other links and lift over

dbSNP: rs868850825; hg19: chr10-28378660; COSMIC: COSV61730067; API