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GeneBe

17-29074834-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_078471.4(MYO18A):c.6101G>A(p.Arg2034Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000117 in 1,613,906 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

MYO18A
NM_078471.4 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0910
Variant links:
Genes affected
MYO18A (HGNC:31104): (myosin XVIIIA) The protein encoded by this gene can bind GOLPH3, linking the Golgi to the cytoskeleton and influencing Golgi membrane trafficking. The encoded protein is also part of a complex that assembles lamellar actomyosin bundles and may be required for cell migration. [provided by RefSeq, Oct 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant where missense usually causes diseases, MYO18A
BP4
Computational evidence support a benign effect (MetaRNN=0.08167735).
BS2
High AC in GnomAd at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYO18ANM_078471.4 linkuse as main transcriptc.6101G>A p.Arg2034Gln missense_variant 42/42 ENST00000527372.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYO18AENST00000527372.7 linkuse as main transcriptc.6101G>A p.Arg2034Gln missense_variant 42/421 NM_078471.4 A1Q92614-1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152094
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000129
AC:
32
AN:
247982
Hom.:
0
AF XY:
0.000126
AC XY:
17
AN XY:
134660
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000277
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000120
AC:
175
AN:
1461694
Hom.:
0
Cov.:
30
AF XY:
0.000118
AC XY:
86
AN XY:
727130
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000375
Gnomad4 NFE exome
AF:
0.000150
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152212
Hom.:
0
Cov.:
32
AF XY:
0.000134
AC XY:
10
AN XY:
74430
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.000191
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000223
Hom.:
0
Bravo
AF:
0.0000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000470
AC:
4
ExAC
AF:
0.000116
AC:
14
EpiCase
AF:
0.000436
EpiControl
AF:
0.000178

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 GeneticsApr 07, 2023The c.6101G>A (p.R2034Q) alteration is located in exon 42 (coding exon 41) of the MYO18A gene. This alteration results from a G to A substitution at nucleotide position 6101, causing the arginine (R) at amino acid position 2034 to be replaced by a glutamine (Q). 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
0.072
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.26
Cadd
Benign
14
Dann
Uncertain
1.0
DEOGEN2
Benign
0.019
T;.;.;T
Eigen
Benign
-0.44
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.072
N
LIST_S2
Uncertain
0.91
D;D;D;D
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.082
T;T;T;T
MetaSVM
Benign
-0.47
T
MutationAssessor
Benign
1.1
L;.;.;.
MutationTaster
Benign
0.93
N;N;N;N;D;D
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.42
N;N;N;.
REVEL
Benign
0.22
Sift
Pathogenic
0.0
D;D;D;.
Sift4G
Benign
0.18
T;T;T;T
Polyphen
0.30
B;B;B;.
Vest4
0.065
MVP
0.69
MPC
0.31
ClinPred
0.13
T
GERP RS
2.4
Varity_R
0.12
gMVP
0.36

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: rs200380774; hg19: chr17-27401852; API