rs146200756

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP6BS1BS2

The NM_001384474.1(LOXHD1):​c.6099C>T​(p.Asn2033Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00189 in 1,549,766 control chromosomes in the GnomAD database, including 32 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0014 ( 4 hom., cov: 30)
Exomes 𝑓: 0.0019 ( 28 hom. )

Consequence

LOXHD1
NM_001384474.1 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: -0.139

Publications

3 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: Benign. The variant received -9 ACMG points.

BP6
Variant 18-46485102-G-A is Benign according to our data. Variant chr18-46485102-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 178392.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00144 (217/150330) while in subpopulation SAS AF = 0.0128 (59/4626). AF 95% confidence interval is 0.0102. There are 4 homozygotes in GnomAd4. There are 119 alleles in the male GnomAd4 subpopulation. Median coverage is 30. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 4 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LOXHD1NM_001384474.1 linkc.6099C>T p.Asn2033Asn synonymous_variant Exon 39 of 41 ENST00000642948.1 NP_001371403.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LOXHD1ENST00000642948.1 linkc.6099C>T p.Asn2033Asn synonymous_variant Exon 39 of 41 NM_001384474.1 ENSP00000496347.1

Frequencies

GnomAD3 genomes
AF:
0.00142
AC:
213
AN:
150212
Hom.:
3
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.000197
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000669
Gnomad ASJ
AF:
0.000290
Gnomad EAS
AF:
0.00802
Gnomad SAS
AF:
0.0119
Gnomad FIN
AF:
0.000290
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00136
Gnomad OTH
AF:
0.00145
GnomAD2 exomes
AF:
0.00342
AC:
540
AN:
158032
AF XY:
0.00407
show subpopulations
Gnomad AFR exome
AF:
0.000244
Gnomad AMR exome
AF:
0.000810
Gnomad ASJ exome
AF:
0.000822
Gnomad EAS exome
AF:
0.0127
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00154
Gnomad OTH exome
AF:
0.00290
GnomAD4 exome
AF:
0.00193
AC:
2706
AN:
1399436
Hom.:
28
Cov.:
35
AF XY:
0.00226
AC XY:
1561
AN XY:
690234
show subpopulations
African (AFR)
AF:
0.000253
AC:
8
AN:
31598
American (AMR)
AF:
0.000840
AC:
30
AN:
35696
Ashkenazi Jewish (ASJ)
AF:
0.000596
AC:
15
AN:
25170
East Asian (EAS)
AF:
0.00521
AC:
186
AN:
35734
South Asian (SAS)
AF:
0.0113
AC:
897
AN:
79182
European-Finnish (FIN)
AF:
0.000142
AC:
7
AN:
49464
Middle Eastern (MID)
AF:
0.00930
AC:
53
AN:
5696
European-Non Finnish (NFE)
AF:
0.00126
AC:
1362
AN:
1078790
Other (OTH)
AF:
0.00255
AC:
148
AN:
58106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
141
283
424
566
707
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
54
108
162
216
270
<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:
0.00144
AC:
217
AN:
150330
Hom.:
4
Cov.:
30
AF XY:
0.00162
AC XY:
119
AN XY:
73236
show subpopulations
African (AFR)
AF:
0.000196
AC:
8
AN:
40788
American (AMR)
AF:
0.000668
AC:
10
AN:
14962
Ashkenazi Jewish (ASJ)
AF:
0.000290
AC:
1
AN:
3450
East Asian (EAS)
AF:
0.00804
AC:
41
AN:
5100
South Asian (SAS)
AF:
0.0128
AC:
59
AN:
4626
European-Finnish (FIN)
AF:
0.000290
AC:
3
AN:
10338
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
288
European-Non Finnish (NFE)
AF:
0.00136
AC:
92
AN:
67782
Other (OTH)
AF:
0.00144
AC:
3
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
12
24
35
47
59
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.00144
Hom.:
0
Bravo
AF:
0.00108
Asia WGS
AF:
0.00606
AC:
21
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:3
Nov 27, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 20, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

LOXHD1: BS1, BS2 -

Autosomal recessive nonsyndromic hearing loss 77 Uncertain:1Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Dec 10, 2019
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:1
Jun 18, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

p.Asn1971Asn in exon 38 of LOXHD1: This variant is not expected to have clinical significance because it has been identified in 1.2% (98/7914) of South Asian ch romosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute. org; dbSNP rs146200756). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.37
CADD
Benign
0.98
DANN
Benign
0.80
PhyloP100
-0.14
Mutation Taster
=98/2
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.28
Position offset: 49

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs146200756; hg19: chr18-44065065; COSMIC: COSV56070150; API