18-46577834-G-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4BP6BP7BS1BS2

The NM_001384474.1(LOXHD1):c.1843C>A(p.Arg615Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.001 in 1,551,590 control chromosomes in the GnomAD database, including 16 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 0.0053 ( 7 hom., cov: 32)

Exomes 𝑓: 0.00054 ( 9 hom. )

Consequence

LOXHD1
NM_001384474.1 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: 0.880

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

LOXHD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (REVEL=0.273).

BP6

Variant 18-46577834-G-T is Benign according to our data. Variant chr18-46577834-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 178400.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

BP7

Synonymous conserved (PhyloP=0.88 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00527 (802/152166) while in subpopulation AFR AF = 0.0183 (758/41526). AF 95% confidence interval is 0.0172. There are 7 homozygotes in GnomAd4. There are 379 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 7 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LOXHD1	NM_001384474.1 link	c.1843C>A	p.Arg615Arg	synonymous_variant	Exon 14 of 41	ENST00000642948.1	NP_001371403.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LOXHD1	ENST00000642948.1 link	c.1843C>A	p.Arg615Arg	synonymous_variant	Exon 14 of 41		NM_001384474.1	ENSP00000496347.1	A0A2R8Y7K4
LOXHD1	ENST00000536736.5 link	c.1843C>A	p.Arg615Arg	synonymous_variant	Exon 14 of 40	5		ENSP00000444586.1	F5GZB4
LOXHD1	ENST00000441551.6 link	c.1843C>A	p.Arg615Arg	synonymous_variant	Exon 14 of 39	5		ENSP00000387621.2	Q8IVV2-1
LOXHD1	ENST00000335730.6 link	n.1156C>A		non_coding_transcript_exon_variant	Exon 7 of 27	2

Frequencies

GnomAD3 genomes

AF:

0.00520

AC:

791

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0180

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00223

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000959

GnomAD2 exomes

AF:

0.00108

AC:

171

AN:

158190

AF XY:

0.000732

show subpopulations

Gnomad AFR exome

AF:

0.0163

Gnomad AMR exome

AF:

0.000808

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000822

Gnomad OTH exome

AF:

0.000896

GnomAD4 exome

AF:

0.000538

AC:

753

AN:

1399424

Hom.:

Cov.:

AF XY:

0.000461

AC XY:

318

AN XY:

690212

show subpopulations

African (AFR)

AF:

0.0186

AC:

587

AN:

31598

American (AMR)

AF:

0.000756

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35738

South Asian (SAS)

AF:

0.0000757

AC:

AN:

79236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49280

Middle Eastern (MID)

AF:

0.00246

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.0000250

AC:

AN:

1078978

Other (OTH)

AF:

0.00159

AC:

AN:

58010

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

128

171

214

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00527

AC:

802

AN:

152166

Hom.:

Cov.:

AF XY:

0.00509

AC XY:

379

AN XY:

74390

show subpopulations

African (AFR)

AF:

0.0183

AC:

758

AN:

41526

American (AMR)

AF:

0.00223

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10592

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68006

Other (OTH)

AF:

0.000949

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

112

149

186

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000249

Hom.:

Bravo

AF:

0.00621

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:6

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 77

Uncertain:1Benign:2

Dec 10, 2019

Natera, Inc.

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

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. -

Dec 14, 2017

Counsyl

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

not specified

Benign:2

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 30, 2012

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Arg615Arg in Exon 14 of LOXHD1: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence, and has been identified in 2.3% (16/702) of Afr ican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs112463030). -

not provided

Benign:2

Nov 15, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 16, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.52

CADD

Benign

2.3

(source)

DANN

Benign

0.43

PhyloP100

0.88

Mutation Taster

=99/1

polymorphism

(source)

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

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18-46577834-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over