rs539278802

Variant summary

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

The NM_001384474.1(LOXHD1):​c.710A>T​(p.Asn237Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,551,752 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N237S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.46

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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07844105).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LOXHD1NM_001384474.1 linkc.710A>T p.Asn237Ile missense_variant Exon 6 of 41 ENST00000642948.1 NP_001371403.1
LOXHD1NM_144612.7 linkc.710A>T p.Asn237Ile missense_variant Exon 6 of 40 NP_653213.6 Q8IVV2F5GZB4B7Z7T7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LOXHD1ENST00000642948.1 linkc.710A>T p.Asn237Ile missense_variant Exon 6 of 41 NM_001384474.1 ENSP00000496347.1 A0A2R8Y7K4
LOXHD1ENST00000536736.5 linkc.710A>T p.Asn237Ile missense_variant Exon 6 of 40 5 ENSP00000444586.1 F5GZB4
LOXHD1ENST00000441551.6 linkc.710A>T p.Asn237Ile missense_variant Exon 6 of 39 5 ENSP00000387621.2 Q8IVV2-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152234
Hom.:
0
Cov.:
32
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:
0.000770
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:
0.0000702
AC:
11
AN:
156684
AF XY:
0.0000843
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00101
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
21
AN:
1399400
Hom.:
0
Cov.:
30
AF XY:
0.0000188
AC XY:
13
AN XY:
690202
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31594
American (AMR)
AF:
0.00
AC:
0
AN:
35700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25182
East Asian (EAS)
AF:
0.000504
AC:
18
AN:
35738
South Asian (SAS)
AF:
0.0000126
AC:
1
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49286
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5694
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1078962
Other (OTH)
AF:
0.0000345
AC:
2
AN:
58008
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.520
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.0000263
AC:
4
AN:
152352
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74496
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41578
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000772
AC:
4
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.438
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

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:
0.0000225
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000389
AC:
1

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Mar 29, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces asparagine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 237 of the LOXHD1 protein (p.Asn237Ile). This variant is present in population databases (rs539278802, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with LOXHD1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
18
DANN
Benign
0.81
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.40
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.078
T;T;T
MetaSVM
Benign
-1.0
T
PhyloP100
2.5
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-3.0
D;.;.
REVEL
Benign
0.11
Sift
Benign
0.073
T;.;.
Sift4G
Uncertain
0.045
D;.;D
Polyphen
0.30
B;.;.
Vest4
0.38
MutPred
0.56
Loss of catalytic residue at N237 (P = 0.0404);Loss of catalytic residue at N237 (P = 0.0404);Loss of catalytic residue at N237 (P = 0.0404);
MVP
0.26
ClinPred
0.16
T
GERP RS
-2.1
Varity_R
0.35
gMVP
0.34
Mutation Taster
=83/17
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs539278802; hg19: chr18-44190788; API