chr8-19958727-A-C

Position:

• chr8-19958727-A-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000237.3(LPL):​c.1019-533A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.275 in 152,026 control chromosomes in the GnomAD database, including 6,119 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.27 (6119 hom., cov: 31)
• Consequence: LPL NM_000237.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.423

Genes affected

LPL (HGNC:6677): (lipoprotein lipase) LPL encodes lipoprotein lipase, which is expressed in heart, muscle, and adipose tissue. LPL functions as a homodimer, and has the dual functions of triglyceride hydrolase and ligand/bridging factor for receptor-mediated lipoprotein uptake. Severe mutations that cause LPL deficiency result in type I hyperlipoproteinemia, while less extreme mutations in LPL are linked to many disorders of lipoprotein metabolism. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.0).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.368 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LPL	NM_000237.3	c.1019-533A>C		intron_variant		ENST00000650287.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LPL	ENST00000650287.1	c.1019-533A>C		intron_variant			NM_000237.3	P1
LPL	ENST00000650478.1	c.80-2174A>C		intron_variant, NMD_transcript_variant

Frequencies

GnomAD3 genomes AF: 0.275 AC: 41763 AN: 151908 Hom.: 6108 Cov.: 31

Gnomad AFR AF: 0.373

Gnomad AMI AF: 0.318

Gnomad AMR AF: 0.236

Gnomad ASJ AF: 0.306

Gnomad EAS AF: 0.208

Gnomad SAS AF: 0.222

Gnomad FIN AF: 0.221

Gnomad MID AF: 0.250

Gnomad NFE AF: 0.239

Gnomad OTH AF: 0.256

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.275 AC: 41796 AN: 152026 Hom.: 6119 Cov.: 31 AF XY: 0.272 AC XY: 20247 AN XY: 74328

Gnomad4 AFR AF: 0.373

Gnomad4 AMR AF: 0.236

Gnomad4 ASJ AF: 0.306

Gnomad4 EAS AF: 0.208

Gnomad4 SAS AF: 0.222

Gnomad4 FIN AF: 0.221

Gnomad4 NFE AF: 0.239

Gnomad4 OTH AF: 0.257

Alfa AF: 0.262 Hom.: 1788

Bravo AF: 0.278

Asia WGS AF: 0.236 AC: 817 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	2.5
DANN	Benign	0.37

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: rs295; hg19: chr8-19816238;