rs191101701

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001375808.2(LPIN2):​c.388A>G​(p.Thr130Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,614,012 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

LPIN2
NM_001375808.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.78
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.020518035).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LPIN2NM_001375808.2 linkc.388A>G p.Thr130Ala missense_variant Exon 4 of 20 ENST00000677752.1 NP_001362737.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LPIN2ENST00000677752.1 linkc.388A>G p.Thr130Ala missense_variant Exon 4 of 20 NM_001375808.2 ENSP00000504857.1 Q92539

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152120
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251288
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135798
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461774
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727202
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152238
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Majeed syndrome Uncertain:1
Jul 15, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 468457). This variant has not been reported in the literature in individuals affected with LPIN2-related conditions. This variant is present in population databases (rs191101701, gnomAD 0.003%). This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 130 of the LPIN2 protein (p.Thr130Ala). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
15
DANN
Benign
0.76
DEOGEN2
Benign
0.043
T;T
Eigen
Benign
-0.69
Eigen_PC
Benign
-0.50
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.25
T;T
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.021
T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.34
N;.
PrimateAI
Benign
0.25
T
PROVEAN
Benign
0.17
N;.
REVEL
Benign
0.15
Sift
Benign
0.78
T;.
Sift4G
Benign
0.81
T;.
Polyphen
0.0
B;.
Vest4
0.20
MVP
0.14
MPC
0.23
ClinPred
0.040
T
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.032
gMVP
0.12

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: rs191101701; hg19: chr18-2951255; COSMIC: COSV55242995; COSMIC: COSV55242995; API