18-46509757-T-A

Position:

chr18-46509757-T-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001384474.1(LOXHD1):c.5458A>T(p.Thr1820Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000102 in 1,551,276 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 1 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 6.16

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 Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.051597178).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LOXHD1	NM_001384474.1 linkuse as main transcript	c.5458A>T	p.Thr1820Ser	missense_variant	35/41	ENST00000642948.1	NP_001371403.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LOXHD1	ENST00000642948.1 linkuse as main transcript	c.5458A>T	p.Thr1820Ser	missense_variant	35/41		NM_001384474.1	ENSP00000496347	P1

Frequencies

GnomAD3 genomes

AF:

0.0000922

AC:

AN:

151842

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000297

AC:

AN:

158434

Hom.:

AF XY:

0.000324

AC XY:

AN XY:

83448

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000889

Gnomad ASJ exome

AF:

0.00224

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000176

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000164

Gnomad OTH exome

AF:

0.000224

GnomAD4 exome

AF:

0.000103

AC:

144

AN:

1399316

Hom.:

Cov.:

AF XY:

0.000106

AC XY:

AN XY:

690158

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000868

Gnomad4 ASJ exome

AF:

0.00206

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000215

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000297

Gnomad4 OTH exome

AF:

0.000172

GnomAD4 genome

AF:

0.0000921

AC:

AN:

151960

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74264

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000328

Gnomad4 ASJ

AF:

0.00173

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000293

Hom.:

ExAC

AF:

0.000223

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 77

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Counsyl	Jun 19, 2017	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 27, 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). 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:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jun 26, 2017

Variant classified as Uncertain Significance - Favor Benign. The p.Thr1758Ser va riant in LOXHD1 has been previously reported by our laboratory in 1 Ashkenazi Je wish individual with hearing loss; however, a variant affecting the remaining co py of LOXHD1 was not identified. This variant has been identified in 0.25% (21/8 532) of Ashkenazi Jewish chromosomes by the genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs775871086); however, this frequency i s not high enough to rule out a pathogenic role. Computational prediction tools and conservation analysis suggest that this variant may not impact the protein, though this information is not predictive enough to rule out pathogenicity. In s ummary, while the clinical significance of the p.Thr1758Ser variant is uncertain , available data suggest that it is more likely to be benign. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 16, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.41

CADD

Uncertain

DANN

Benign

0.93

DEOGEN2

Benign

0.0083

.;.;.;T;.;.;.;.;.

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.95

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

M_CAP

Benign

0.039

MetaRNN

Benign

0.052

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.46

MutationTaster

Benign

0.82

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

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.68

N;.;N;.;N;N;.;.;N

REVEL

Benign

0.17

Sift

Benign

0.36

T;.;T;.;T;T;.;.;T

Sift4G

Benign

0.23

T;T;T;T;D;T;.;D;.

Polyphen

0.63

.;.;.;.;P;.;.;.;.

Vest4

0.34

MutPred

0.48

.;.;.;.;Loss of helix (P = 0.0138);.;.;.;.;

MVP

0.27

ClinPred

0.076

GERP RS

5.5

Varity_R

0.12

gMVP

0.17

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