rs876657858

Variant summary

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

The NM_001384474.1(LOXHD1):​c.2288C>T​(p.Ala763Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000683 in 1,551,160 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A763T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000073 ( 0 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

1
5
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.67

Publications

1 publications found
Variant links:
Genes affected
LOXHD1 (HGNC:26521): (lipoxygenase homology PLAT domains 1) This gene encodes a highly conserved protein consisting entirely of PLAT (polycystin/lipoxygenase/alpha-toxin) domains, thought to be involved in targeting proteins to the plasma membrane. Studies in mice show that this gene is expressed in the mechanosensory hair cells in the inner ear, and mutations in this gene lead to auditory defects, indicating that this gene is essential for normal hair cell function. Screening of human families segregating deafness identified a mutation in this gene which causes DFNB77, a progressive form of autosomal-recessive nonsyndromic hearing loss (ARNSHL). Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Mar 2010]
LOXHD1 Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 77
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Fuchs' endothelial dystrophy
    Inheritance: AD Classification: LIMITED 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.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LOXHD1NM_001384474.1 linkc.2288C>T p.Ala763Val missense_variant Exon 17 of 41 ENST00000642948.1 NP_001371403.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LOXHD1ENST00000642948.1 linkc.2288C>T p.Ala763Val missense_variant Exon 17 of 41 NM_001384474.1 ENSP00000496347.1 A0A2R8Y7K4
LOXHD1ENST00000536736.5 linkc.2288C>T p.Ala763Val missense_variant Exon 17 of 40 5 ENSP00000444586.1 F5GZB4
LOXHD1ENST00000441551.6 linkc.2288C>T p.Ala763Val missense_variant Exon 17 of 39 5 ENSP00000387621.2 Q8IVV2-1
LOXHD1ENST00000335730.6 linkn.1601C>T non_coding_transcript_exon_variant Exon 10 of 27 2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152216
Hom.:
0
Cov.:
33
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000127
AC:
2
AN:
157982
AF XY:
0.0000120
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000328
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000729
AC:
102
AN:
1398944
Hom.:
0
Cov.:
31
AF XY:
0.0000652
AC XY:
45
AN XY:
689994
show subpopulations
African (AFR)
AF:
0.0000316
AC:
1
AN:
31598
American (AMR)
AF:
0.00
AC:
0
AN:
35704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25182
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48812
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.0000908
AC:
98
AN:
1078970
Other (OTH)
AF:
0.0000517
AC:
3
AN:
58006
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
7
14
21
28
35
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000263
AC:
4
AN:
152216
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74372
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000370
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Feb 28, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Ala763Val variant in LOXHD1 has not been previously reported in individual s with hearing loss and was absent from large population studies. Computational prediction tools and conservation analyses suggest that the p.Ala763Val variant may not impact the protein, though this information is not predictive enough to rule out pathogenicity. In summary, the clinical significance of the p.Ala763Val variant is uncertain. -

Autosomal recessive nonsyndromic hearing loss 77 Uncertain:1
Sep 16, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

LOXHD1-related disorder Uncertain:1
Sep 25, 2023
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The LOXHD1 c.2288C>T variant is predicted to result in the amino acid substitution p.Ala763Val. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0033% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/18-44146369-G-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.32
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
23
DANN
Benign
0.91
Eigen
Benign
0.11
Eigen_PC
Benign
0.091
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.84
T;T;T
M_CAP
Benign
0.030
D
MetaRNN
Uncertain
0.62
D;D;D
MetaSVM
Benign
-0.42
T
PhyloP100
6.7
PrimateAI
Uncertain
0.52
T
PROVEAN
Uncertain
-3.2
D;.;.
REVEL
Uncertain
0.33
Sift
Benign
0.050
D;.;.
Sift4G
Uncertain
0.0030
D;.;D
Polyphen
0.28
B;.;.
Vest4
0.58
MutPred
0.61
Gain of MoRF binding (P = 0.119);Gain of MoRF binding (P = 0.119);Gain of MoRF binding (P = 0.119);
MVP
0.18
ClinPred
0.72
D
GERP RS
5.0
Varity_R
0.084
gMVP
0.63
Mutation Taster
=67/33
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: rs876657858; hg19: chr18-44146369; COSMIC: COSV59667853; API