13-48411609-A-C

Variant names:

• chr13-48411609-A-C
• rs114372872
• NM_001162498.3:c.815T>G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001162498.3(LPAR6):​c.815T>G​(p.Met272Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 32)
• Consequence: LPAR6 NM_001162498.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.38

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]

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.791

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LPAR6	NM_001162498.3	c.815T>G	p.Met272Arg	missense_variant	Exon 1 of 1	ENST00000620633.5	NP_001155970.1
RB1	NM_000321.3	c.1695+30166A>C		intron_variant	Intron 17 of 26	ENST00000267163.6	NP_000312.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LPAR6	ENST00000620633.5	c.815T>G	p.Met272Arg	missense_variant	Exon 1 of 1	5	NM_001162498.3	ENSP00000482660.1
RB1	ENST00000267163.6	c.1695+30166A>C		intron_variant	Intron 17 of 26	1	NM_000321.3	ENSP00000267163.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.92
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Uncertain	24
DANN	Benign	0.95
DEOGEN2	Benign	0.094	T;T;T
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.12
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.96	.;D;.
M_CAP	Benign	0.021	T
MetaRNN	Pathogenic	0.79	D;D;D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.2	M;M;M
PrimateAI	Uncertain	0.55	T
PROVEAN	Uncertain	-3.0	D;.;D
REVEL	Benign	0.27
Sift	Uncertain	0.0040	D;.;D
Sift4G	Benign	0.11	T;T;T
Polyphen		0.096	B;B;B
Vest4		0.86
MutPred		0.80		Gain of methylation at M272 (P = 0.0085);Gain of methylation at M272 (P = 0.0085);Gain of methylation at M272 (P = 0.0085);
MVP		0.50
MPC		0.22
ClinPred		0.96	D
GERP RS		3.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.85
gMVP		0.88

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

Other links and lift over

dbSNP: rs114372872; hg19: chr13-48985745;