rs17555442

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001375808.2(LPIN2):​c.2223C>T​(p.Ala741Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0138 in 1,613,974 control chromosomes in the GnomAD database, including 224 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.011 ( 13 hom., cov: 33)
Exomes 𝑓: 0.014 ( 211 hom. )

Consequence

LPIN2
NM_001375808.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7O:1

Conservation

PhyloP100: -1.37
Variant links:
Genes affected
LPIN2 (HGNC:14450): (lipin 2) Mouse studies suggest that this gene functions during normal adipose tissue development and may play a role in human triglyceride metabolism. This gene represents a candidate gene for human lipodystrophy, characterized by loss of body fat, fatty liver, hypertriglyceridemia, and insulin resistance. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.68).
BP6
Variant 18-2922151-G-A is Benign according to our data. Variant chr18-2922151-G-A is described in ClinVar as [Benign]. Clinvar id is 97815.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.37 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0114 (1737/152282) while in subpopulation NFE AF= 0.0151 (1026/68008). AF 95% confidence interval is 0.0143. There are 13 homozygotes in gnomad4. There are 790 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 13 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LPIN2NM_001375808.2 linkc.2223C>T p.Ala741Ala synonymous_variant Exon 17 of 20 ENST00000677752.1 NP_001362737.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LPIN2ENST00000677752.1 linkc.2223C>T p.Ala741Ala synonymous_variant Exon 17 of 20 NM_001375808.2 ENSP00000504857.1 Q92539

Frequencies

GnomAD3 genomes
AF:
0.0114
AC:
1738
AN:
152164
Hom.:
13
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00762
Gnomad AMI
AF:
0.0219
Gnomad AMR
AF:
0.00890
Gnomad ASJ
AF:
0.0415
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00207
Gnomad FIN
AF:
0.00472
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.0151
Gnomad OTH
AF:
0.0148
GnomAD3 exomes
AF:
0.0114
AC:
2850
AN:
250898
Hom.:
42
AF XY:
0.0117
AC XY:
1584
AN XY:
135820
show subpopulations
Gnomad AFR exome
AF:
0.00702
Gnomad AMR exome
AF:
0.00850
Gnomad ASJ exome
AF:
0.0409
Gnomad EAS exome
AF:
0.000327
Gnomad SAS exome
AF:
0.00225
Gnomad FIN exome
AF:
0.00342
Gnomad NFE exome
AF:
0.0157
Gnomad OTH exome
AF:
0.0170
GnomAD4 exome
AF:
0.0141
AC:
20539
AN:
1461692
Hom.:
211
Cov.:
33
AF XY:
0.0139
AC XY:
10083
AN XY:
727164
show subpopulations
Gnomad4 AFR exome
AF:
0.00783
Gnomad4 AMR exome
AF:
0.00890
Gnomad4 ASJ exome
AF:
0.0419
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.00261
Gnomad4 FIN exome
AF:
0.00389
Gnomad4 NFE exome
AF:
0.0156
Gnomad4 OTH exome
AF:
0.0147
GnomAD4 genome
AF:
0.0114
AC:
1737
AN:
152282
Hom.:
13
Cov.:
33
AF XY:
0.0106
AC XY:
790
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.00758
Gnomad4 AMR
AF:
0.00889
Gnomad4 ASJ
AF:
0.0415
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00207
Gnomad4 FIN
AF:
0.00472
Gnomad4 NFE
AF:
0.0151
Gnomad4 OTH
AF:
0.0147
Alfa
AF:
0.0155
Hom.:
11
Bravo
AF:
0.0124
Asia WGS
AF:
0.00202
AC:
8
AN:
3478
EpiCase
AF:
0.0171
EpiControl
AF:
0.0190

ClinVar

Significance: Benign
Submissions summary: Benign:7Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Majeed syndrome Benign:3Other:1
-
Unité médicale des maladies autoinflammatoires, CHRU Montpellier
Significance: not provided
Review Status: no classification provided
Collection Method: literature only

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 11, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Mar 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

LPIN2: BP4, BP7, BS1, BS2 -

not specified Benign:1
Dec 27, 2013
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Autoinflammatory syndrome Benign:1
Feb 04, 2022
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
0.62
DANN
Benign
0.73
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8

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.

Other links and lift over

dbSNP: rs17555442; hg19: chr18-2922149; API