rs192376005

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001384474.1(LOXHD1):​c.1570C>T​(p.Arg524Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00305 in 1,552,186 control chromosomes in the GnomAD database, including 6 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 0.0028 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0031 ( 5 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

8
5
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:9

Conservation

PhyloP100: 9.27
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.024916917).
BP6
Variant 18-46592017-G-A is Benign according to our data. Variant chr18-46592017-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 163930.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Benign=2, Uncertain_significance=4}. Variant chr18-46592017-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00282 (430/152276) while in subpopulation AMR AF= 0.00883 (135/15296). AF 95% confidence interval is 0.00761. There are 1 homozygotes in gnomad4. There are 214 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LOXHD1NM_001384474.1 linkc.1570C>T p.Arg524Cys missense_variant Exon 12 of 41 ENST00000642948.1 NP_001371403.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LOXHD1ENST00000642948.1 linkc.1570C>T p.Arg524Cys missense_variant Exon 12 of 41 NM_001384474.1 ENSP00000496347.1 A0A2R8Y7K4
LOXHD1ENST00000536736.5 linkc.1570C>T p.Arg524Cys missense_variant Exon 12 of 40 5 ENSP00000444586.1 F5GZB4
LOXHD1ENST00000441551.6 linkc.1570C>T p.Arg524Cys missense_variant Exon 12 of 39 5 ENSP00000387621.2 Q8IVV2-1
LOXHD1ENST00000335730.6 linkn.883C>T non_coding_transcript_exon_variant Exon 5 of 27 2

Frequencies

GnomAD3 genomes
AF:
0.00283
AC:
431
AN:
152158
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000700
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00890
Gnomad ASJ
AF:
0.00173
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00370
Gnomad OTH
AF:
0.00335
GnomAD3 exomes
AF:
0.00274
AC:
440
AN:
160600
Hom.:
1
AF XY:
0.00254
AC XY:
214
AN XY:
84096
show subpopulations
Gnomad AFR exome
AF:
0.000769
Gnomad AMR exome
AF:
0.00435
Gnomad ASJ exome
AF:
0.00538
Gnomad EAS exome
AF:
0.0000883
Gnomad SAS exome
AF:
0.000263
Gnomad FIN exome
AF:
0.000409
Gnomad NFE exome
AF:
0.00398
Gnomad OTH exome
AF:
0.00371
GnomAD4 exome
AF:
0.00308
AC:
4306
AN:
1399910
Hom.:
5
Cov.:
32
AF XY:
0.00291
AC XY:
2012
AN XY:
690436
show subpopulations
Gnomad4 AFR exome
AF:
0.000601
Gnomad4 AMR exome
AF:
0.00420
Gnomad4 ASJ exome
AF:
0.00401
Gnomad4 EAS exome
AF:
0.0000560
Gnomad4 SAS exome
AF:
0.000341
Gnomad4 FIN exome
AF:
0.000323
Gnomad4 NFE exome
AF:
0.00354
Gnomad4 OTH exome
AF:
0.00284
GnomAD4 genome
AF:
0.00282
AC:
430
AN:
152276
Hom.:
1
Cov.:
32
AF XY:
0.00287
AC XY:
214
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.000698
Gnomad4 AMR
AF:
0.00883
Gnomad4 ASJ
AF:
0.00173
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00370
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.00346
Hom.:
3
Bravo
AF:
0.00312
TwinsUK
AF:
0.00378
AC:
14
ALSPAC
AF:
0.00311
AC:
12
ESP6500AA
AF:
0.000723
AC:
1
ESP6500EA
AF:
0.00314
AC:
10
ExAC
AF:
0.00168
AC:
45
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:5Benign:9
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:4
Jun 12, 2018
GeneDx
Significance: Likely 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. -

Jan 20, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 25, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 24, 2020
Athena Diagnostics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

LOXHD1: BS2 -

Autosomal recessive nonsyndromic hearing loss 77 Uncertain:3Benign:1
Mar 06, 2017
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 08, 2020
Natera, Inc.
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 30, 2015
Division of Human Genetics, Children's Hospital of Philadelphia
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: research

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

not specified Uncertain:1Benign:3
May 18, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

p.Arg524Cys in exon 12 of LOXHD1: This variant is not expected to have clinical significance because it has been identified in 0.5% (44/8578) of Ashkenazi Jewis h chromosomes and 0.4% (291/73944) of European chromosomes including 1 homozygot e by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbS NP rs192376005}. This variant has also been reported in seven members of one fam ily with autosomal dominant, late onset Fuchs corneal dystrophy (FCD); however, one affected family member did not carry this variant and functional studies wer e not strongly supportive of pathogenicity (Riazzudin 2012). In summary, this va riant is benign based on its frequency in the general population and the evidenc e against an association with FCD, primarily the non-segregation. -

Oct 30, 2015
Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Dec 26, 2017
Eurofins Ntd Llc (ga)
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 23, 2022
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: LOXHD1 c.1570C>T (p.Arg524Cys) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.0027 in 160600 control chromosomes including one homozygote (gnomAD), predominantly at a frequency of 0.0044 within the Latino subpopulation in the gnomAD database. The observed variant frequency within Latino control individuals in the gnomAD database is approximately 4 fold of the estimated maximal expected allele frequency for a pathogenic variant in LOXHD1 causing Nonsyndromic Hearing Loss And Deafness, Type 77 phenotype (0.0011), suggesting that the variant is a benign polymorphism found primarily in populations of Latino origin. c.1570C>T has been reported in the literature in individuals affected with Nonsyndromic Hearing Loss And Deafness, Type 77 (Sheppard_2018), however this report does not provide unequivocal conclusions about association of the variant with Nonsyndromic Hearing Loss And Deafness, Type 77. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Eleven ClinVar submitters have assessed the variant since 2014: five have classified the variant as of uncertain significance, five as likely benign, and one as benign. Based on the evidence outlined above, the variant was classified as benign. -

LOXHD1-related disorder Benign:1
Jul 31, 2019
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely 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
Uncertain
0.55
BayesDel_addAF
Benign
-0.0054
T
BayesDel_noAF
Pathogenic
0.22
CADD
Pathogenic
28
DANN
Uncertain
0.99
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.96
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.025
T;T;T
MetaSVM
Uncertain
-0.021
T
PrimateAI
Uncertain
0.64
T
PROVEAN
Pathogenic
-6.5
D;.;.
REVEL
Pathogenic
0.66
Sift
Benign
0.17
T;.;.
Sift4G
Pathogenic
0.0
D;.;D
Polyphen
1.0
D;.;.
Vest4
0.78
MVP
0.72
ClinPred
0.026
T
GERP RS
6.1
Varity_R
0.43
gMVP
0.75

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs192376005; hg19: chr18-44171980; COSMIC: COSV59663574; API