rs140326236

Positions:

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6BP7BS1

The NM_182548.4(LHFPL5):c.411G>A(p.Ala137=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0002 in 1,613,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A137A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00021 ( 0 hom. )

Consequence

LHFPL5
NM_182548.4 splice_region, synonymous

Scores

Splicing: ADA: 0.00005037

Clinical Significance

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

Conservation

PhyloP100: -6.65

Variant links:

Genes affected

LHFPL5 (HGNC:21253): (LHFPL tetraspan subfamily member 5) This gene is a member of the lipoma HMGIC fusion partner (LHFP) gene family, which is a subset of the superfamily of tetraspan transmembrane protein encoding genes. Mutations in this gene result in deafness in humans, and a mutation in a similar gene in mice results in deafness and vestibular dysfunction with severe degeneration of the organ of Corti. It is proposed to function in hair bundle morphogenesis. [provided by RefSeq, Jul 2008]

LHFPL5 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BP6

Variant 6-35806081-G-A is Benign according to our data. Variant chr6-35806081-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 227500.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1}.

BP7

Synonymous conserved (PhyloP=-6.65 with no splicing effect.

BS1

Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.000211 (308/1461374) while in subpopulation MID AF= 0.000693 (4/5768). AF 95% confidence interval is 0.000236. There are 0 homozygotes in gnomad4_exome. There are 152 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LHFPL5	NM_182548.4 linkuse as main transcript	c.411G>A	p.Ala137=	splice_region_variant, synonymous_variant	1/4	ENST00000360215.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LHFPL5	ENST00000360215.3 linkuse as main transcript	c.411G>A	p.Ala137=	splice_region_variant, synonymous_variant	1/4	1	NM_182548.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000985

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000173

AC:

AN:

248990

Hom.:

AF XY:

0.000178

AC XY:

AN XY:

135046

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000294

Gnomad OTH exome

AF:

0.000329

GnomAD4 exome

AF:

0.000211

AC:

308

AN:

1461374

Hom.:

Cov.:

AF XY:

0.000209

AC XY:

152

AN XY:

727002

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.0000895

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000241

Gnomad4 OTH exome

AF:

0.000348

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74372

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000204

Hom.:

Bravo

AF:

0.000204

EpiCase

AF:

0.000273

EpiControl

AF:

0.000415

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 10, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Jul 21, 2022	In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing. ClinVar contains an entry for this variant (Variation ID: 227500). This variant has not been reported in the literature in individuals affected with LHFPL5-related conditions. This variant is present in population databases (rs140326236, gnomAD 0.03%). This sequence change affects codon 137 of the LHFPL5 mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the LHFPL5 protein. It affects a nucleotide within the consensus splice site. -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Apr 30, 2015

p.Ala137Ala in exon 1 of LHFPL5: This variant is not expected to have clinical s ignificance because it does not alter an amino acid residue and has been identif ied in 14/63960 European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs140326236). This variant is located in t he last three bases of the exon, which is part of the 5? splice region. However, computational tools do not suggest an impact to splicing, this nucleotide posit ion is not highly conserved through species and a G>A change at this position do es not diverge from the splice consensus sequence and is therefore unlikely to i mpact splicing. -

LHFPL5-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Nov 14, 2019

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

0.025

DANN

Benign

0.78

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000050

dbscSNV1_RF

Benign

0.046

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