rs7244681

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001384474.1(LOXHD1):​c.4148C>T​(p.Thr1383Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00358 in 1,551,636 control chromosomes in the GnomAD database, including 180 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1383R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.019 ( 90 hom., cov: 32)
Exomes 𝑓: 0.0019 ( 90 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

17

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 1.62

Publications

6 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.003362).
BP6
Variant 18-46534399-G-A is Benign according to our data. Variant chr18-46534399-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 47937.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0631 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LOXHD1NM_001384474.1 linkc.4148C>T p.Thr1383Met missense_variant Exon 27 of 41 ENST00000642948.1 NP_001371403.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LOXHD1ENST00000642948.1 linkc.4148C>T p.Thr1383Met missense_variant Exon 27 of 41 NM_001384474.1 ENSP00000496347.1

Frequencies

GnomAD3 genomes
AF:
0.0190
AC:
2897
AN:
152084
Hom.:
90
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0652
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00995
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.0144
GnomAD2 exomes
AF:
0.00420
AC:
668
AN:
159010
AF XY:
0.00293
show subpopulations
Gnomad AFR exome
AF:
0.0645
Gnomad AMR exome
AF:
0.00275
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000342
Gnomad OTH exome
AF:
0.00156
GnomAD4 exome
AF:
0.00190
AC:
2655
AN:
1399432
Hom.:
90
Cov.:
30
AF XY:
0.00162
AC XY:
1121
AN XY:
690218
show subpopulations
African (AFR)
AF:
0.0653
AC:
2063
AN:
31586
American (AMR)
AF:
0.00370
AC:
132
AN:
35704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25182
East Asian (EAS)
AF:
0.0000280
AC:
1
AN:
35736
South Asian (SAS)
AF:
0.000290
AC:
23
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49302
Middle Eastern (MID)
AF:
0.00351
AC:
20
AN:
5698
European-Non Finnish (NFE)
AF:
0.000128
AC:
138
AN:
1078964
Other (OTH)
AF:
0.00479
AC:
278
AN:
58024
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
137
274
411
548
685
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
64
128
192
256
320
<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:
0.0191
AC:
2902
AN:
152204
Hom.:
90
Cov.:
32
AF XY:
0.0184
AC XY:
1373
AN XY:
74424
show subpopulations
African (AFR)
AF:
0.0651
AC:
2704
AN:
41512
American (AMR)
AF:
0.00994
AC:
152
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4804
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
68016
Other (OTH)
AF:
0.0143
AC:
30
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
127
255
382
510
637
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
34
68
102
136
170
<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:
0.00809
Hom.:
70
Bravo
AF:
0.0223
ESP6500AA
AF:
0.0614
AC:
85
ESP6500EA
AF:
0.000943
AC:
3
ExAC
AF:
0.00731
AC:
193
Asia WGS
AF:
0.00318
AC:
11
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Nov 12, 2018
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:2
May 07, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Thr1383Met in Exon 27 of LOXHD1: This variant is not expected to have clinical s ignificance because it has been identified in 6.7% (47/702) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http: //evs.gs.washington.edu/EVS; dbSNP rs7244681). -

Feb 16, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Autosomal recessive nonsyndromic hearing loss 77 Benign:2
Jun 15, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Likely benign
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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

LOXHD1-related disorder Benign:1
Feb 19, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.58
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
20
DANN
Benign
0.74
DEOGEN2
Benign
0.019
.;.;T;.;.;.
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.82
T;T;T;T;T;T
MetaRNN
Benign
0.0034
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
PhyloP100
1.6
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.0
.;N;.;N;.;.
REVEL
Benign
0.15
Sift
Benign
0.084
.;T;.;T;.;.
Sift4G
Benign
0.092
T;T;T;T;.;T
Polyphen
0.85
.;.;.;P;.;.
Vest4
0.13
MVP
0.11
ClinPred
0.013
T
GERP RS
4.4
Varity_R
0.019
gMVP
0.57
Mutation Taster
=100/0
polymorphism (auto)

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: rs7244681; hg19: chr18-44114362; API