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GeneBe

19-48713735-C-G

Variant summary

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

The NM_001130915.2(MAMSTR):c.945G>C(p.Glu315Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000719 in 1,614,238 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000073 ( 0 hom. )

Consequence

MAMSTR
NM_001130915.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0860
Variant links:
Genes affected
MAMSTR (HGNC:26689): (MEF2 activating motif and SAP domain containing transcriptional regulator) Predicted to enable transcription coregulator activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to act upstream of or within positive regulation of myotube differentiation and positive regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.039925754).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MAMSTRNM_001130915.2 linkuse as main transcriptc.945G>C p.Glu315Asp missense_variant 9/10 ENST00000318083.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MAMSTRENST00000318083.11 linkuse as main transcriptc.945G>C p.Glu315Asp missense_variant 9/102 NM_001130915.2 P2Q6ZN01-1
MAMSTRENST00000594582.1 linkuse as main transcriptc.441G>C p.Glu147Asp missense_variant 6/71 Q6ZN01-3
MAMSTRENST00000356751.8 linkuse as main transcriptc.636G>C p.Glu212Asp missense_variant 7/82 A2Q6ZN01-2

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152232
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000735
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000143
AC:
36
AN:
251490
Hom.:
0
AF XY:
0.000118
AC XY:
16
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000520
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:
0.000149
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000732
AC:
107
AN:
1461888
Hom.:
0
Cov.:
41
AF XY:
0.0000770
AC XY:
56
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000425
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000719
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152350
Hom.:
0
Cov.:
33
AF XY:
0.0000671
AC XY:
5
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000945
ExAC
AF:
0.000140
AC:
17
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

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 GeneticsJan 04, 2022The c.945G>C (p.E315D) alteration is located in exon 9 (coding exon 8) of the MAMSTR gene. This alteration results from a G to C substitution at nucleotide position 945, causing the glutamic acid (E) at amino acid position 315 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
0.16
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.55
Cadd
Benign
17
Dann
Uncertain
0.99
DEOGEN2
Benign
0.055
T;.;.
Eigen
Benign
-0.64
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.44
N
LIST_S2
Benign
0.55
T;T;T
M_CAP
Benign
0.0036
T
MetaRNN
Benign
0.040
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L;.;.
MutationTaster
Benign
0.99
N;N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-1.2
N;N;.
REVEL
Benign
0.046
Sift
Benign
0.11
T;T;.
Sift4G
Benign
0.37
T;T;T
Polyphen
0.0010
B;.;.
Vest4
0.23
MutPred
0.078
Loss of helix (P = 0.1299);.;.;
MVP
0.27
MPC
0.37
ClinPred
0.029
T
GERP RS
-1.3
Varity_R
0.072
gMVP
0.063

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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: rs143820544; hg19: chr19-49216992; API