rs371634710

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001281740.3(FHOD3):​c.109C>G​(p.Leu37Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000255 in 1,565,676 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 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

FHOD3
NM_001281740.3 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.656

Publications

0 publications found
Variant links:
Genes affected
FHOD3 (HGNC:26178): (formin homology 2 domain containing 3) The protein encoded by this gene is a member of the diaphanous-related formins (DRF), and contains multiple domains, including GBD (GTPase-binding domain), DID (diaphanous inhibitory domain), FH1 (formin homology 1), FH2 (formin homology 2), and DAD (diaphanous auto-regulatory domain) domains. This protein is thought to play a role in actin filament polymerization in cardiomyocytes. Mutations in this gene have been associated with dilated cardiomyopathy (DCM), characterized by dilation of the ventricular chamber, leading to impairment of systolic pump function and subsequent heart failure. Increased levels of the protein encoded by this gene have been observed in individuals with hypertrophic cardiomyopathy (HCM). Alternative splicing results in multiple transcript variants encoding different isoforms. A muscle-specific isoform has been shown to possess a casein kinase 2 (CK2) phosphorylation site at the C-terminal end of the FH2 domain. Phosphorylation of this site alters its interaction with sequestosome 1 (SQSTM1), and targets this isoform to myofibrils, while other isoforms form cytoplasmic aggregates. [provided by RefSeq, Aug 2015]
FHOD3 Gene-Disease associations (from GenCC):
  • cardiomyopathy, familial hypertrophic, 28
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: MODERATE Submitted by: Illumina

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0785768).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FHOD3NM_001281740.3 linkc.109C>G p.Leu37Val missense_variant Exon 1 of 29 ENST00000590592.6 NP_001268669.1 Q2V2M9-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FHOD3ENST00000590592.6 linkc.109C>G p.Leu37Val missense_variant Exon 1 of 29 1 NM_001281740.3 ENSP00000466937.1 Q2V2M9-4
FHOD3ENST00000257209.8 linkc.109C>G p.Leu37Val missense_variant Exon 1 of 25 1 ENSP00000257209.3 Q2V2M9-3
FHOD3ENST00000359247.8 linkc.109C>G p.Leu37Val missense_variant Exon 1 of 24 1 ENSP00000352186.3 Q2V2M9-1
FHOD3ENST00000589114.5 linkn.228C>G non_coding_transcript_exon_variant Exon 1 of 14 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152134
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000114
AC:
2
AN:
175410
AF XY:
0.0000105
show subpopulations
Gnomad AFR exome
AF:
0.000230
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000212
AC:
3
AN:
1413542
Hom.:
0
Cov.:
31
AF XY:
0.00000286
AC XY:
2
AN XY:
699446
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000968
AC:
3
AN:
31004
American (AMR)
AF:
0.00
AC:
0
AN:
38584
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25062
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79674
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49898
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5686
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1088912
Other (OTH)
AF:
0.00
AC:
0
AN:
58520
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000034), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.392
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.00000657
AC:
1
AN:
152134
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74324
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41454
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67996
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000231
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000846
AC:
1

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Aug 02, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.109C>G (p.L37V) alteration is located in exon 1 (coding exon 1) of the FHOD3 gene. This alteration results from a C to G substitution at nucleotide position 109, causing the leucine (L) at amino acid position 37 to be replaced by a valine (V). 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
0.071
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.66
CADD
Uncertain
23
DANN
Uncertain
0.98
DEOGEN2
Benign
0.011
.;.;T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.15
FATHMM_MKL
Benign
0.53
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.079
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.51
N;N;N
PhyloP100
0.66
PrimateAI
Pathogenic
0.89
D
PROVEAN
Benign
-1.0
N;.;N
REVEL
Benign
0.026
Sift
Benign
0.14
T;.;T
Sift4G
Benign
0.33
T;T;T
Polyphen
0.0070
B;.;B
Vest4
0.080
MVP
0.043
MPC
2.5
ClinPred
0.16
T
GERP RS
2.2
PromoterAI
0.046
Neutral
Varity_R
0.12
gMVP
0.13
Mutation Taster
=94/6
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: rs371634710; hg19: chr18-33877907; API