rs4775051

Positions:

• chr15-58456956-T-A
• chr15-58456956-T-C
• chr15-58456956-T-G

Variant summary

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

The ENST00000299022.10(LIPC):​c.88+24836T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.299 in 151,904 control chromosomes in the GnomAD database, including 7,144 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 0.30 (7144 hom., cov: 33)
• Consequence: LIPC ENST00000299022.10 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.756

Genes affected

LIPC (HGNC:6619): (lipase C, hepatic type) Enables phospholipase A1 activity and triglyceride lipase activity. Involved in several processes, including lipid homeostasis; plasma lipoprotein particle remodeling; and triglyceride catabolic process. Located in extracellular space. Implicated in several diseases, including Alzheimer's disease; coronary artery disease; familial combined hyperlipidemia; peripheral vascular disease; and type 2 diabetes mellitus. Biomarker of hyperinsulinism; obesity; and type 1 diabetes mellitus. [provided by Alliance of Genome Resources, Apr 2022]

LIPC-AS1 (HGNC:52294): (LIPC antisense RNA 1)

ALDH1A2 (HGNC:15472): (aldehyde dehydrogenase 1 family member A2) This protein belongs to the aldehyde dehydrogenase family of proteins. The product of this gene is an enzyme that catalyzes the synthesis of retinoic acid (RA) from retinaldehyde. Retinoic acid, the active derivative of vitamin A (retinol), is a hormonal signaling molecule that functions in developing and adult tissues. The studies of a similar mouse gene suggest that this enzyme and the cytochrome CYP26A1, concurrently establish local embryonic retinoic acid levels which facilitate posterior organ development and prevent spina bifida. Four transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, May 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.471 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LIPC	NM_000236.3	c.88+24836T>A		intron_variant		ENST00000299022.10	NP_000227.2
LIPC-AS1	NR_120338.1	n.209-20044A>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LIPC	ENST00000299022.10	c.88+24836T>A		intron_variant		1	NM_000236.3	ENSP00000299022	P1
LIPC-AS1	ENST00000561083.1	n.209-20044A>T		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes AF: 0.299 AC: 45418 AN: 151788 Hom.: 7137 Cov.: 33

Gnomad AFR AF: 0.221

Gnomad AMI AF: 0.342

Gnomad AMR AF: 0.417

Gnomad ASJ AF: 0.323

Gnomad EAS AF: 0.485

Gnomad SAS AF: 0.398

Gnomad FIN AF: 0.269

Gnomad MID AF: 0.385

Gnomad NFE AF: 0.301

Gnomad OTH AF: 0.322

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

GnomAD4 genome AF: 0.299 AC: 45428 AN: 151904 Hom.: 7144 Cov.: 33 AF XY: 0.302 AC XY: 22443 AN XY: 74234

Gnomad4 AFR AF: 0.220

Gnomad4 AMR AF: 0.418

Gnomad4 ASJ AF: 0.323

Gnomad4 EAS AF: 0.487

Gnomad4 SAS AF: 0.398

Gnomad4 FIN AF: 0.269

Gnomad4 NFE AF: 0.301

Gnomad4 OTH AF: 0.319

Alfa AF: 0.161 Hom.: 314

Bravo AF: 0.308

Asia WGS AF: 0.387 AC: 1351 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.044
DANN	Benign	0.79

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: rs4775051; hg19: chr15-58749155;