rs532777099

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_032608.7(MYO18B):​c.4058G>A​(p.Arg1353His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,613,810 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1353C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

MYO18B
NM_032608.7 missense

Scores

8
9
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.54

Publications

0 publications found
Variant links:
Genes affected
MYO18B (HGNC:18150): (myosin XVIIIB) The protein encoded by this gene may regulate muscle-specific genes when in the nucleus and may influence intracellular trafficking when in the cytoplasm. The encoded protein functions as a homodimer and may interact with F actin. Mutations in this gene are associated with lung cancer. [provided by RefSeq, Jul 2008]
MYO18B Gene-Disease associations (from GenCC):
  • Klippel-Feil anomaly-myopathy-facial dysmorphism syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.868

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032608.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYO18B
NM_032608.7
MANE Select
c.4058G>Ap.Arg1353His
missense
Exon 23 of 44NP_115997.5
MYO18B
NM_001318245.2
c.4061G>Ap.Arg1354His
missense
Exon 23 of 44NP_001305174.1Q8IUG5-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYO18B
ENST00000335473.12
TSL:1 MANE Select
c.4058G>Ap.Arg1353His
missense
Exon 23 of 44ENSP00000334563.8Q8IUG5-1
MYO18B
ENST00000407587.6
TSL:1
c.4061G>Ap.Arg1354His
missense
Exon 23 of 44ENSP00000386096.2Q8IUG5-3
MYO18B
ENST00000536101.5
TSL:1
c.4058G>Ap.Arg1353His
missense
Exon 23 of 43ENSP00000441229.1Q8IUG5-1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152124
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
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
GnomAD2 exomes
AF:
0.0000161
AC:
4
AN:
248526
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.000129
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000560
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000889
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461568
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727052
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53394
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000108
AC:
12
AN:
1111778
Other (OTH)
AF:
0.00
AC:
0
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152242
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74422
show subpopulations
African (AFR)
AF:
0.000168
AC:
7
AN:
41548
American (AMR)
AF:
0.0000654
AC:
1
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4806
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000386
Hom.:
0
Bravo
AF:
0.0000831
ExAC
AF:
0.0000414
AC:
5

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Klippel-Feil anomaly-myopathy-facial dysmorphism syndrome (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Uncertain
0.028
T
BayesDel_noAF
Uncertain
0.040
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.64
D
Eigen
Pathogenic
0.98
Eigen_PC
Pathogenic
0.91
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.88
D
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.87
D
MetaSVM
Uncertain
0.66
D
MutationAssessor
Pathogenic
3.0
M
PhyloP100
7.5
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-4.8
D
REVEL
Pathogenic
0.79
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.057
T
Polyphen
1.0
D
Vest4
0.82
MVP
0.96
MPC
0.44
ClinPred
1.0
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.86
gMVP
0.62
Mutation Taster
=57/43
polymorphism

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

Other links and lift over

dbSNP: rs532777099; hg19: chr22-26270359; COSMIC: COSV106103000; COSMIC: COSV106103000; API