Genetic Variant NM_001384474.1:c.2332G>A (chr18-46566362-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001384474.1(LOXHD1):c.2332G>A(p.Gly778Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000357 in 1,399,420 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

LOXHD1
NM_001384474.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 7.84

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LOXHD1	NM_001384474.1 link	c.2332G>A	p.Gly778Ser	missense_variant	Exon 17 of 41	ENST00000642948.1	NP_001371403.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LOXHD1	ENST00000642948.1 link	c.2332G>A	p.Gly778Ser	missense_variant	Exon 17 of 41		NM_001384474.1	ENSP00000496347.1	A0A2R8Y7K4
LOXHD1	ENST00000536736.5 link	c.2332G>A	p.Gly778Ser	missense_variant	Exon 17 of 40	5		ENSP00000444586.1	F5GZB4
LOXHD1	ENST00000441551.6 link	c.2332G>A	p.Gly778Ser	missense_variant	Exon 17 of 39	5		ENSP00000387621.2	Q8IVV2-1
LOXHD1	ENST00000335730.6 link	n.1645G>A		non_coding_transcript_exon_variant	Exon 10 of 27	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000126

AC:

AN:

158616

Hom.:

AF XY:

0.0000239

AC XY:

AN XY:

83544

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:

0.00

Gnomad NFE exome

AF:

0.0000327

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000357

AC:

AN:

1399420

Hom.:

Cov.:

AF XY:

0.00000290

AC XY:

AN XY:

690214

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:

0.00

Gnomad4 NFE exome

AF:

0.00000463

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 26, 2015

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Gly778Ser variant in LOXHD1 has not been previously reported in individual s with hearing loss or seen in large population studies. Computational predicti on tools and conservation analysis do not provide strong support for or against an impact to the protein. In summary, the clinical significance of the p.Gly778S er variant is uncertain. -

Autosomal recessive nonsyndromic hearing loss 77

Uncertain:1

Oct 28, 2019

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.46

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

DANN

Uncertain

0.98

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Uncertain

0.099

MetaRNN

Uncertain

0.65

D;D;D

MetaSVM

Benign

-0.48

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-4.6

D;.;.

REVEL

Uncertain

0.52

Sift

Uncertain

0.0080

D;.;.

Sift4G

Uncertain

0.0020

D;.;D

Polyphen

1.0

D;.;.

Vest4

0.87

MutPred

0.43

Gain of disorder (P = 0.0732);Gain of disorder (P = 0.0732);Gain of disorder (P = 0.0732);

MVP

0.26

ClinPred

0.94

GERP RS

5.0

Varity_R

0.49

gMVP

0.58

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