chr7-104328799-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_199000.3(LHFPL3):​c.20C>T​(p.Ala7Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000281 in 1,603,446 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

LHFPL3
NM_199000.3 missense

Scores

1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.34
Variant links:
Genes affected
LHFPL3 (HGNC:6589): (LHFPL tetraspan subfamily member 3) 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 one LHFP-like gene result in deafness in humans and mice, and a second LHFP-like gene is fused to a high-mobility group gene in a translocation-associated lipoma. A partial gene fragment named LHFPL4 corresponds to a portion of the first exon of this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
BayesDel_noAF computational evidence supports a deleterious effect, 0.31

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LHFPL3NM_199000.3 linkuse as main transcriptc.20C>T p.Ala7Val missense_variant 1/3 ENST00000424859.7 NP_945351.1 Q86UP9
LHFPL3NM_001386065.1 linkuse as main transcriptc.20C>T p.Ala7Val missense_variant 1/4 NP_001372994.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LHFPL3ENST00000424859.7 linkuse as main transcriptc.20C>T p.Ala7Val missense_variant 1/31 NM_199000.3 ENSP00000393128.2 Q86UP9
LHFPL3ENST00000401970.3 linkuse as main transcriptc.20C>T p.Ala7Val missense_variant 1/41 ENSP00000385374.3 A1L384

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
151904
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000883
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000130
AC:
3
AN:
230162
Hom.:
0
AF XY:
0.0000159
AC XY:
2
AN XY:
126120
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:
0.0000295
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000269
AC:
39
AN:
1451542
Hom.:
0
Cov.:
34
AF XY:
0.0000152
AC XY:
11
AN XY:
721454
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:
0.0000343
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
151904
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74186
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000883
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000285
Hom.:
0
Bravo
AF:
0.0000264

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 01, 2024The c.20C>T (p.A7V) alteration is located in exon 1 (coding exon 1) of the LHFPL3 gene. This alteration results from a C to T substitution at nucleotide position 20, causing the alanine (A) at amino acid position 7 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Pathogenic
0.31
CADD
Benign
22
DANN
Uncertain
1.0

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: rs755481687; hg19: chr7-103969247; API