rs200792636

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001384474.1(LOXHD1):c.3874C>T(p.Leu1292Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00044 in 1,551,632 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 (★★).

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00045 ( 0 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 6.45

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20347133).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LOXHD1	NM_001384474.1 linkuse as main transcript	c.3874C>T	p.Leu1292Phe	missense_variant	25/41	ENST00000642948.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LOXHD1	ENST00000642948.1 linkuse as main transcript	c.3874C>T	p.Leu1292Phe	missense_variant	25/41		NM_001384474.1	P1

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

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:

0.00122

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000367

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000196

AC:

AN:

158478

Hom.:

AF XY:

0.000180

AC XY:

AN XY:

83496

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000828

Gnomad NFE exome

AF:

0.000278

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000454

AC:

636

AN:

1399410

Hom.:

Cov.:

AF XY:

0.000411

AC XY:

284

AN XY:

690210

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000710

Gnomad4 NFE exome

AF:

0.000531

Gnomad4 OTH exome

AF:

0.000483

GnomAD4 genome

AF:

0.000309

AC:

AN:

152222

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00122

Gnomad4 NFE

AF:

0.000367

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000213

Hom.:

Bravo

AF:

0.000234

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000393

AC:

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:2

Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 28, 2017	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). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Oct 25, 2016

The p.Leu1292Phe variant in LOXHD1 has not been reported in any individual with hearing loss, but has been reported in 1 individual with Fuchs corneal dystrophy (Riazuddin 2012). This variant has also been identified in 1/8764 European chro mosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.or g; dbSNP rs200792636). Computational prediction tools and conservation analyses do not provide strong support for or against an impact to the protein. In summar y, the clinical significance of the p.Leu1292Phe variant is uncertain. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Nov 24, 2021

This sequence change replaces leucine, which is neutral and non-polar, with phenylalanine, which is neutral and non-polar, at codon 1292 of the LOXHD1 protein (p.Leu1292Phe). This variant is present in population databases (rs200792636, gnomAD 0.08%). This variant has not been reported in the literature in individuals affected with LOXHD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 505370). 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: "Probably Damaging"; 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

Uncertain

0.40

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.19

Cadd

Pathogenic

Dann

Benign

0.92

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Benign

0.75

LIST_S2

Uncertain

0.89

D;D;D;D;D;D

M_CAP

Benign

0.031

MetaRNN

Benign

0.20

T;T;T;T;T;T

MetaSVM

Benign

-0.77

MutationTaster

Benign

1.0

D;D;D;D;D;D;D

PrimateAI

Benign

0.44

Sift4G

Uncertain

0.0080

D;D;D;D;.;D

Polyphen

1.0

.;.;.;D;.;.

Vest4

0.45

MVP

0.26

ClinPred

0.27

GERP RS

4.8

Varity_R

0.16

gMVP

0.56

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over