rs866017859

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001384474.1(LOXHD1):​c.4256C>T​(p.Thr1419Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000187 in 1,551,662 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 (★★). Synonymous variant affecting the same amino acid position (i.e. T1419T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

7
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 3.82

Publications

4 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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.24621484).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LOXHD1NM_001384474.1 linkc.4256C>T p.Thr1419Ile missense_variant Exon 28 of 41 ENST00000642948.1 NP_001371403.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LOXHD1ENST00000642948.1 linkc.4256C>T p.Thr1419Ile missense_variant Exon 28 of 41 NM_001384474.1 ENSP00000496347.1 A0A2R8Y7K4

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152194
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000126
AC:
2
AN:
159056
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000808
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:
0.0000200
AC:
28
AN:
1399468
Hom.:
0
Cov.:
31
AF XY:
0.0000217
AC XY:
15
AN XY:
690236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31598
American (AMR)
AF:
0.0000560
AC:
2
AN:
35708
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:
49306
Middle Eastern (MID)
AF:
0.00158
AC:
9
AN:
5698
European-Non Finnish (NFE)
AF:
0.0000120
AC:
13
AN:
1078980
Other (OTH)
AF:
0.0000689
AC:
4
AN:
58022
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
2
4
5
7
9
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:
152194
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
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:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
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:
0.00
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 77 Uncertain:3
Nov 07, 2017
Counsyl
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Sep 16, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Sep 19, 2020
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

not specified Uncertain:1
Sep 12, 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.Thr1419Ile variant in LOXHD1 has been previously identified by our laborat ory in 1 individual with hearing loss and was absent from large population studi es. Computational prediction tools and conservation analyses suggest that this v ariant may not impact the protein, though this information is not predictive eno ugh to rule out pathogenicity. In summary, the clinical significance of the p.Th r1419Ile variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.42
CADD
Uncertain
24
DANN
Benign
0.91
DEOGEN2
Benign
0.024
.;.;T;.;.;D
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.92
D;D;D;D;D;D
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.25
T;T;T;T;T;T
MetaSVM
Benign
-0.54
T
PhyloP100
3.8
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-2.3
.;N;.;N;.;.
REVEL
Benign
0.15
Sift
Uncertain
0.028
.;D;.;T;.;.
Sift4G
Uncertain
0.060
T;T;T;D;.;D
Polyphen
0.99
.;.;.;D;.;.
Vest4
0.12
MutPred
0.43
.;.;.;Loss of phosphorylation at T1419 (P = 0.0568);Loss of phosphorylation at T1419 (P = 0.0568);.;
MVP
0.23
ClinPred
0.77
D
GERP RS
4.6
Varity_R
0.047
gMVP
0.53
Mutation Taster
=83/17
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: rs866017859; hg19: chr18-44113244; API