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GeneBe

9-133515526-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_001080483.3(MYMK):ā€‹c.481G>Cā€‹(p.Gly161Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,613,612 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 (ā˜…).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 32)
Exomes š‘“: 0.000014 ( 0 hom. )

Consequence

MYMK
NM_001080483.3 missense

Scores

7
7
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.40
Variant links:
Genes affected
MYMK (HGNC:33778): (myomaker, myoblast fusion factor) Involved in myoblast fusion. Located in plasma membrane. Implicated in Carey-Fineman-Ziter syndrome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a chain Protein myomaker (size 220) in uniprot entity MYMK_HUMAN there are 10 pathogenic changes around while only 1 benign (91%) in NM_001080483.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.832

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYMKNM_001080483.3 linkuse as main transcriptc.481G>C p.Gly161Arg missense_variant 4/5 ENST00000339996.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYMKENST00000339996.4 linkuse as main transcriptc.481G>C p.Gly161Arg missense_variant 4/52 NM_001080483.3 P1
MYMKENST00000413714.1 linkuse as main transcript downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152212
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000864
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251266
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135806
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1461400
Hom.:
0
Cov.:
30
AF XY:
0.0000124
AC XY:
9
AN XY:
727022
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.000498
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152212
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000864
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Congenital nonprogressive myopathy with Moebius and Robin sequences Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 04, 2019The MYMK c.481G>C (p.Gly161Arg) variant is a missense variant. A literature search was performed for the gene, cDNA change and amino acid change. No publications were found based on this search. The variant is reported at a frequency of 0.000018 in the Total population from the Genome Aggregation Database in a region of good sequencing coverage. There is no functional evidence for this variant, but it is located in the transmembrane domain 6 (Di Gioia et al. 2017). Based on limited evidence, the p.Gly161Arg variant is classified as a variant of uncertain significance for Carey-Fineman-Ziter syndrome. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.097
T
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Benign
-0.68
T
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-1.9
N
REVEL
Uncertain
0.41
Sift
Uncertain
0.0020
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.95
MutPred
0.66
Gain of methylation at G161 (P = 0.0124);
MVP
0.66
MPC
1.2
ClinPred
0.90
D
GERP RS
4.3
Varity_R
0.34
gMVP
0.96

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: rs766698870; hg19: chr9-136380648; API