chr18-2921604-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_ModerateBP6BS1

The NM_001375808.2(LPIN2):​c.2371C>T​(p.Leu791=) variant causes a synonymous change. The variant allele was found at a frequency of 0.000193 in 1,614,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

LPIN2
NM_001375808.2 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 4.86
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 -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.3).
BP6
Variant 18-2921604-G-A is Benign according to our data. Variant chr18-2921604-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 385657.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.000202 (295/1461768) while in subpopulation NFE AF= 0.000256 (285/1111902). AF 95% confidence interval is 0.000231. There are 0 homozygotes in gnomad4_exome. There are 144 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LPIN2NM_001375808.2 linkuse as main transcriptc.2371C>T p.Leu791= synonymous_variant 18/20 ENST00000677752.1 NP_001362737.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LPIN2ENST00000677752.1 linkuse as main transcriptc.2371C>T p.Leu791= synonymous_variant 18/20 NM_001375808.2 ENSP00000504857 P1
ENST00000608032.1 linkuse as main transcriptn.639G>A non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152160
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000220
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000636
AC:
16
AN:
251486
Hom.:
0
AF XY:
0.0000883
AC XY:
12
AN XY:
135916
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.000141
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000202
AC:
295
AN:
1461768
Hom.:
0
Cov.:
31
AF XY:
0.000198
AC XY:
144
AN XY:
727194
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000256
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152278
Hom.:
0
Cov.:
33
AF XY:
0.0000806
AC XY:
6
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000221
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000153
Hom.:
0
Bravo
AF:
0.0000945
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Autoinflammatory syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, The Hospital for Sick ChildrenJul 01, 2018- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxApr 19, 2016This 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. -
Majeed syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 11, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.30
CADD
Benign
18
DANN
Benign
0.74

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: rs373520277; hg19: chr18-2921602; API