chr13-48411859-C-T

Position:

chr13-48411859-C-T

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The NM_001162498.3(LPAR6):c.565G>A(p.Glu189Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,613,606 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

LPAR6
NM_001162498.3 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 7.91

Variant links:

Genes affected

LPAR6 (HGNC:15520): (lysophosphatidic acid receptor 6) The protein encoded by this gene belongs to the family of G-protein coupled receptors, that are preferentially activated by adenosine and uridine nucleotides. This gene aligns with an internal intron of the retinoblastoma susceptibility gene in the reverse orientation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2009]

LPAR6 links:

RB1 (HGNC:9884): (RB transcriptional corepressor 1) The protein encoded by this gene is a negative regulator of the cell cycle and was the first tumor suppressor gene found. The encoded protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1. Defects in this gene are a cause of childhood cancer retinoblastoma (RB), bladder cancer, and osteogenic sarcoma. [provided by RefSeq, Jul 2008]

RB1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.952

PP5

Variant 13-48411859-C-T is Pathogenic according to our data. Variant chr13-48411859-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1829.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LPAR6	NM_001162498.3 linkuse as main transcript	c.565G>A	p.Glu189Lys	missense_variant	1/1	ENST00000620633.5
RB1	NM_000321.3 linkuse as main transcript	c.1695+30416C>T		intron_variant		ENST00000267163.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LPAR6	ENST00000620633.5 linkuse as main transcript	c.565G>A	p.Glu189Lys	missense_variant	1/1	5	NM_001162498.3	P1
RB1	ENST00000267163.6 linkuse as main transcript	c.1695+30416C>T		intron_variant		1	NM_000321.3	P1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152128

Hom.:

Cov.:

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

249012

Hom.:

AF XY:

0.00000741

AC XY:

AN XY:

134968

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:

0.0000463

Gnomad NFE exome

AF:

0.00000894

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1461478

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727036

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152128

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74320

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000557

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hypotrichosis 8

Pathogenic:3

Pathogenic, no assertion criteria provided	literature only	OMIM	Jun 01, 2008	- -
Likely pathogenic, criteria provided, single submitter	curation	SIB Swiss Institute of Bioinformatics	-	This variant is interpreted as likely pathogenic for Woolly hair autosomal recessive 1 with or without hypotrichosis. The following ACMG Tag(s) were applied: Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium (PM2); Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease (PP1); For recessive disorders, detected in trans with a pathogenic variant (PM3); Well-established functional studies show a deleterious effect (PS3 downgraded to supporting); Multiple lines of computational evidence support a deleterious effect on the gene or gene product (PP3). -
Pathogenic, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jun 11, 2024	Variant summary: LPAR6 c.565G>A (p.Glu189Lys) results in a conservative amino acid change located in the GPCR, rhodopsin-like, 7TM domain (IPR017452) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 1.2e-05 in 249012 control chromosomes (gnomAD). c.565G>A has been reported in the literature in several homozygous individuals affected with Woolly hair, autosomal recessive, with or without hypotrichosis (examples: Saleh_2021, Shimomura_2008). These data indicate that the variant is very likely to be associated with disease. In vitro functional studies, suggest that the variant may be defective in ligand binding and/or signaling (Yanagida_2023). The following publications have been ascertained in the context of this evaluation (PMID: 36173926, 18461368, 34374989, 18297072). ClinVar contains an entry for this variant (Variation ID: 1829). Based on the evidence outlined above, the variant was classified as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.91

BayesDel_addAF

Pathogenic

0.36

BayesDel_noAF

Pathogenic

0.28

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.11

T;T;T

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Uncertain

0.96

LIST_S2

Pathogenic

0.98

.;D;.

M_CAP

Uncertain

0.13

MetaRNN

Pathogenic

0.95

D;D;D

MetaSVM

Uncertain

-0.20

MutationAssessor

Pathogenic

3.0

M;M;M

MutationTaster

Benign

1.0

A;A;A

PrimateAI

Pathogenic

0.86

PROVEAN

Uncertain

-2.6

D;.;D

REVEL

Pathogenic

0.67

Sift

Uncertain

0.0040

D;.;D

Sift4G

Benign

0.51

T;T;T

Polyphen

1.0

D;D;D

Vest4

0.72

MutPred

0.91

Gain of MoRF binding (P = 0.0108);Gain of MoRF binding (P = 0.0108);Gain of MoRF binding (P = 0.0108);

MVP

0.81

MPC

0.36

ClinPred

0.92

GERP RS

5.8

Varity_R

0.90

gMVP

0.91

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.

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