rs17852586

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_182548.4(LHFPL5):​c.648C>T​(p.Thr216=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000682 in 1,612,778 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

LHFPL5
NM_182548.4 splice_region, synonymous

Scores

2
Splicing: ADA: 0.0001684
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.604
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP7
Synonymous conserved (PhyloP=0.604 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LHFPL5NM_182548.4 linkuse as main transcriptc.648C>T p.Thr216= splice_region_variant, synonymous_variant 2/4 ENST00000360215.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LHFPL5ENST00000360215.3 linkuse as main transcriptc.648C>T p.Thr216= splice_region_variant, synonymous_variant 2/41 NM_182548.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152122
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000517
AC:
13
AN:
251252
Hom.:
0
AF XY:
0.0000810
AC XY:
11
AN XY:
135840
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000705
AC:
103
AN:
1460656
Hom.:
0
Cov.:
31
AF XY:
0.0000688
AC XY:
50
AN XY:
726740
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000846
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152122
Hom.:
0
Cov.:
31
AF XY:
0.0000404
AC XY:
3
AN XY:
74292
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000494
Hom.:
0
Bravo
AF:
0.0000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineJan 28, 2018Variant classified as Uncertain Significance - Favor Benign. The p.Thr216Thr var iant in LHFPL5 has not been previously reported in individuals with hearing loss , but has been identified in 9/126578 European chromosomes by the Genome Aggrega tion Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs17852586). Alth ough this variant has been seen in the general population, its frequency is not high enough to rule out a pathogenic role. This variant is located in the last t hree bases of the exon, which is part of the 5? splice region. Computational too ls do not predict altered splicing. However, this information is not predictive enough to rule out pathogenicity. In summary, while the clinical significance of the p.Thr216Thr variant is uncertain, these data suggest that it is more likely to be benign. ACMG/AMP Criteria applied: PM2, BP7. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeAug 09, 2022In 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: 506259). This variant has not been reported in the literature in individuals affected with LHFPL5-related conditions. This variant is present in population databases (rs17852586, gnomAD 0.007%). This sequence change affects codon 216 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.67
DANN
Benign
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00017
dbscSNV1_RF
Benign
0.034
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: rs17852586; hg19: chr6-35782558; API