17-29074799-CTG-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM4BP6BS2

The NM_078471.4(MYO18A):​c.6134_6135del​(p.Thr2045ArgfsTer8) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000208 in 1,613,970 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

MYO18A
NM_078471.4 frameshift

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 3.42
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 -3 ACMG points.

PM4
Frameshift in the end of transcript resulting in stoplost. Downstream stopcodon found after 2081 codons.
BP6
Variant 17-29074799-CTG-C is Benign according to our data. Variant chr17-29074799-CTG-C is described in ClinVar as [Likely_benign]. Clinvar id is 3047824.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High AC in GnomAd4 at 165 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYO18ANM_078471.4 linkuse as main transcriptc.6134_6135del p.Thr2045ArgfsTer8 frameshift_variant 42/42 ENST00000527372.7 NP_510880.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYO18AENST00000527372.7 linkuse as main transcriptc.6134_6135del p.Thr2045ArgfsTer8 frameshift_variant 42/421 NM_078471.4 ENSP00000437073 A1Q92614-1

Frequencies

GnomAD3 genomes
AF:
0.00107
AC:
163
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00372
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00192
GnomAD3 exomes
AF:
0.000267
AC:
66
AN:
247194
Hom.:
0
AF XY:
0.000194
AC XY:
26
AN XY:
134310
show subpopulations
Gnomad AFR exome
AF:
0.00426
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:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000117
AC:
171
AN:
1461698
Hom.:
0
AF XY:
0.0000935
AC XY:
68
AN XY:
727136
show subpopulations
Gnomad4 AFR exome
AF:
0.00415
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000381
GnomAD4 genome
AF:
0.00108
AC:
165
AN:
152272
Hom.:
0
Cov.:
32
AF XY:
0.00105
AC XY:
78
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.00375
Gnomad4 AMR
AF:
0.000261
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00190
Alfa
AF:
0.000434
Hom.:
0
Bravo
AF:
0.00133
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

MYO18A-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 10, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs144652932; hg19: chr17-27401817; API