18-46524777-C-T

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_001384474.1(LOXHD1):​c.4671G>A​(p.Leu1557=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000106 in 1,551,676 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 (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

LOXHD1
NM_001384474.1 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.812
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.49).
BP6
Variant 18-46524777-C-T is Benign according to our data. Variant chr18-46524777-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 504967.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr18-46524777-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-0.812 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LOXHD1NM_001384474.1 linkuse as main transcriptc.4671G>A p.Leu1557= synonymous_variant 30/41 ENST00000642948.1 NP_001371403.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LOXHD1ENST00000642948.1 linkuse as main transcriptc.4671G>A p.Leu1557= synonymous_variant 30/41 NM_001384474.1 ENSP00000496347 P1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152264
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000120
AC:
19
AN:
158016
Hom.:
0
AF XY:
0.000144
AC XY:
12
AN XY:
83204
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000202
Gnomad ASJ exome
AF:
0.000471
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000878
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000989
Gnomad OTH exome
AF:
0.000449
GnomAD4 exome
AF:
0.000106
AC:
148
AN:
1399412
Hom.:
0
Cov.:
32
AF XY:
0.000135
AC XY:
93
AN XY:
690210
show subpopulations
Gnomad4 AFR exome
AF:
0.000222
Gnomad4 AMR exome
AF:
0.000224
Gnomad4 ASJ exome
AF:
0.000516
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000139
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000649
Gnomad4 OTH exome
AF:
0.000362
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152264
Hom.:
0
Cov.:
33
AF XY:
0.000148
AC XY:
11
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000675
Hom.:
0
Bravo
AF:
0.0000982
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 24, 2024- -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineApr 18, 2016p.Leu1557Leu in exon 30 of LOXHD1: This variant is not expected to have clinical significance because it does not alter an amino acid residue, and it is not loc ated within the splice consensus sequence. It has been identified in 1/7914 Sou th Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broa dinstitute.org; dbSNP rs763078543). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.49
CADD
Benign
0.54
DANN
Benign
0.69

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.

Other links and lift over

dbSNP: rs763078543; hg19: chr18-44104740; API