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GeneBe

9-133518957-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_001080483.3(MYMK):c.316G>A(p.Val106Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000867 in 1,613,996 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

MYMK
NM_001080483.3 missense

Scores

1
5
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.33
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 3 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;
BP4
Computational evidence support a benign effect (MetaRNN=0.30362427).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYMKNM_001080483.3 linkuse as main transcriptc.316G>A p.Val106Met missense_variant 3/5 ENST00000339996.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYMKENST00000339996.4 linkuse as main transcriptc.316G>A p.Val106Met missense_variant 3/52 NM_001080483.3 P1
MYMKENST00000413714.1 linkuse as main transcriptn.371G>A non_coding_transcript_exon_variant 3/43

Frequencies

GnomAD3 genomes
AF:
0.000322
AC:
49
AN:
152152
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00116
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000717
AC:
18
AN:
251174
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135772
show subpopulations
Gnomad AFR exome
AF:
0.000861
Gnomad AMR exome
AF:
0.0000868
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000623
AC:
91
AN:
1461726
Hom.:
0
Cov.:
31
AF XY:
0.0000578
AC XY:
42
AN XY:
727164
show subpopulations
Gnomad4 AFR exome
AF:
0.000986
Gnomad4 AMR exome
AF:
0.000134
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:
0.0000441
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.000322
AC:
49
AN:
152270
Hom.:
0
Cov.:
32
AF XY:
0.000336
AC XY:
25
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.00115
Gnomad4 AMR
AF:
0.0000654
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
Alfa
AF:
0.000279
Hom.:
0
Bravo
AF:
0.000348
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000988
AC:
12
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 20, 2021The c.316G>A (p.V106M) alteration is located in exon 3 (coding exon 3) of the TMEM8C gene. This alteration results from a G to A substitution at nucleotide position 316, causing the valine (V) at amino acid position 106 to be replaced by a methionine (M). 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
0.27
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.18
Cadd
Uncertain
24
Dann
Benign
0.76
DEOGEN2
Benign
0.020
T
Eigen
Uncertain
0.22
Eigen_PC
Benign
0.22
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.30
T
MetaSVM
Benign
-0.96
T
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
1.6
N
REVEL
Uncertain
0.35
Sift
Benign
1.0
T
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.89
MVP
0.36
MPC
1.1
ClinPred
0.12
T
GERP RS
5.1
Varity_R
0.10
gMVP
0.71

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: rs145245299; hg19: chr9-136384079; API