NM_001384474.1:c.3024C>A

Variant names:

• chr18-46560120-G-T
• rs370616818
• NM_001384474.1:c.3024C>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Moderate BP6_Moderate BP7

The NM_001384474.1(LOXHD1):​c.3024C>A​(p.Val1008Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000174 in 1,149,632 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. V1008V) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000017 (0 hom.)
• Consequence: LOXHD1 NM_001384474.1 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.774
• Publications: 1 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (REVEL=0.081).
• BP6: Variant 18-46560120-G-T is Benign according to our data. Variant chr18-46560120-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 795341.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-0.774 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001384474.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LOXHD1	NM_001384474.1	MANE Select	c.3024C>A	p.Val1008Val	synonymous	Exon 19 of 41	NP_001371403.1
	LOXHD1	NM_144612.7		c.3024C>A	p.Val1008Val	synonymous	Exon 19 of 40	NP_653213.6

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LOXHD1	ENST00000642948.1	MANE Select	c.3024C>A	p.Val1008Val	synonymous	Exon 19 of 41	ENSP00000496347.1
	LOXHD1	ENST00000536736.5	TSL:5	c.3024C>A	p.Val1008Val	synonymous	Exon 19 of 40	ENSP00000444586.1
	LOXHD1	ENST00000335730.6	TSL:2	n.2337C>A		non_coding_transcript_exon	Exon 12 of 27

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000174 AC: 2 AN: 1149632 Hom.: 0 Cov.: 38 AF XY: 0.00000178 AC XY: 1 AN XY: 561842

African (AFR) AF: 0.00 AC: 0 AN: 24380

American (AMR) AF: 0.00 AC: 0 AN: 28224

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 15960

East Asian (EAS) AF: 0.00 AC: 0 AN: 13026

South Asian (SAS) AF: 0.00 AC: 0 AN: 76808

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 28564

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4384

European-Non Finnish (NFE) AF: 0.00000109 AC: 1 AN: 916822

Other (OTH) AF: 0.0000241 AC: 1 AN: 41464

GnomAD4 genome Cov.: 30

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Nov 14, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.30
CADD	Benign	0.33
DANN	Benign	0.66
PhyloP100		-0.77

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

Other links and lift over

dbSNP: rs370616818; hg19: chr18-44140083;