NM_001349206.2:c.1553C>T

Variant names:

• chr2-11787077-C-T
• rs886038731
• NM_001349206.2:c.1553C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Moderate BP6_Moderate

The NM_001349206.2(LPIN1):​c.1553C>T​(p.Ala518Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: LPIN1 NM_001349206.2 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.33
• Publications: 2 publications found

Genes affected

LPIN1 (HGNC:13345): (lipin 1) This gene encodes a magnesium-ion-dependent phosphatidic acid phosphohydrolase enzyme that catalyzes the penultimate step in triglyceride synthesis including the dephosphorylation of phosphatidic acid to yield diacylglycerol. Expression of this gene is required for adipocyte differentiation and it also functions as a nuclear transcriptional coactivator with some peroxisome proliferator-activated receptors to modulate expression of other genes involved in lipid metabolism. Mutations in this gene are associated with metabolic syndrome, type 2 diabetes, acute recurrent rhabdomyolysis, and autosomal recessive acute recurrent myoglobinuria (ARARM). This gene is also a candidate for several human lipodystrophy syndromes. [provided by RefSeq, Mar 2017]

LPIN1 Gene-Disease associations (from GenCC):

• myoglobinuria, acute recurrent, autosomal recessive

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
• hereditary recurrent myoglobinuria

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15466687).
• BP6: Variant 2-11787077-C-T is Benign according to our data. Variant chr2-11787077-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 262582.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LPIN1	NM_001349206.2	c.1553C>T	p.Ala518Val	missense_variant	Exon 11 of 21	ENST00000674199.1	NP_001336135.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LPIN1	ENST00000674199.1	c.1553C>T	p.Ala518Val	missense_variant	Exon 11 of 21		NM_001349206.2	ENSP00000501331.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

-

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.076
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	12
DANN	Benign	0.93
DEOGEN2	Benign	0.17	.;.;.;T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.43	N
LIST_S2	Benign	0.65	T;T;T;T
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.15	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.2	.;.;.;L
PhyloP100		1.3
PrimateAI	Benign	0.38	T
PROVEAN	Benign	-1.7	N;N;.;N
REVEL	Benign	0.077
Sift	Benign	0.11	T;D;.;D
Sift4G	Benign	0.086	T;T;T;T
Polyphen		0.0	.;.;.;B
Vest4		0.28
MutPred		0.42		.;.;.;Loss of sheet (P = 0.003);
MVP		0.57
MPC		0.18
ClinPred		0.19	T
GERP RS		-1.3
PromoterAI		-0.044	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.031
gMVP		0.20
Mutation Taster		=95/5	polymorphism

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

Other links and lift over

dbSNP: rs886038731; hg19: chr2-11927203;