rs34676691

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001375808.2(LPIN2):​c.1043C>T​(p.Pro348Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000989 in 1,614,136 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00074 ( 3 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 5 hom. )

Consequence

LPIN2
NM_001375808.2 missense

Scores

3
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10O:1

Conservation

PhyloP100: 2.41

Publications

8 publications found
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]
LPIN2 Gene-Disease associations (from GenCC):
  • Majeed syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004683107).
BP6
Variant 18-2937817-G-A is Benign according to our data. Variant chr18-2937817-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 21518.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000736 (112/152252) while in subpopulation SAS AF = 0.00394 (19/4822). AF 95% confidence interval is 0.00258. There are 3 homozygotes in GnomAd4. There are 50 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LPIN2NM_001375808.2 linkc.1043C>T p.Pro348Leu missense_variant Exon 7 of 20 ENST00000677752.1 NP_001362737.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LPIN2ENST00000677752.1 linkc.1043C>T p.Pro348Leu missense_variant Exon 7 of 20 NM_001375808.2 ENSP00000504857.1 Q92539

Frequencies

GnomAD3 genomes
AF:
0.000716
AC:
109
AN:
152134
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00352
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.00104
Gnomad OTH
AF:
0.00239
GnomAD2 exomes
AF:
0.00135
AC:
340
AN:
251446
AF XY:
0.00168
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000520
Gnomad ASJ exome
AF:
0.000794
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00142
Gnomad OTH exome
AF:
0.00179
GnomAD4 exome
AF:
0.00102
AC:
1484
AN:
1461884
Hom.:
5
Cov.:
34
AF XY:
0.00123
AC XY:
898
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33480
American (AMR)
AF:
0.000559
AC:
25
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.000803
AC:
21
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00468
AC:
404
AN:
86258
European-Finnish (FIN)
AF:
0.0000562
AC:
3
AN:
53418
Middle Eastern (MID)
AF:
0.00711
AC:
41
AN:
5768
European-Non Finnish (NFE)
AF:
0.000830
AC:
923
AN:
1112006
Other (OTH)
AF:
0.00104
AC:
63
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
89
179
268
358
447
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
28
56
84
112
140
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000736
AC:
112
AN:
152252
Hom.:
3
Cov.:
32
AF XY:
0.000672
AC XY:
50
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41534
American (AMR)
AF:
0.000458
AC:
7
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00394
AC:
19
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.0102
AC:
3
AN:
294
European-Non Finnish (NFE)
AF:
0.00106
AC:
72
AN:
68018
Other (OTH)
AF:
0.00237
AC:
5
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
6
12
19
25
31
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00118
Hom.:
1
Bravo
AF:
0.000650
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.00151
AC:
183
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.00202
EpiControl
AF:
0.00213

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:10Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:6
Feb 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

LPIN2: BP4, BS2 -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Feb 25, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 20981092, 26386126, 20301735) -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Majeed syndrome Benign:3Other:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Oct 20, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
GeneReviews
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Autoinflammatory syndrome Benign:1
Dec 23, 2021
Genome Diagnostics Laboratory, The Hospital for Sick Children
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
0.065
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
17
DANN
Benign
0.69
DEOGEN2
Benign
0.11
T
Eigen
Benign
-0.47
Eigen_PC
Benign
-0.42
FATHMM_MKL
Benign
0.67
D
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.047
D
MetaRNN
Benign
0.0047
T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
1.2
L
PhyloP100
2.4
PrimateAI
Benign
0.28
T
PROVEAN
Uncertain
-2.8
D
REVEL
Uncertain
0.47
Sift
Benign
0.041
D
Sift4G
Benign
0.19
T
Polyphen
0.0
B
Vest4
0.16
MVP
0.86
MPC
0.24
ClinPred
0.010
T
GERP RS
2.9
Varity_R
0.059
gMVP
0.18
Mutation Taster
=97/3
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

Publications

Other links and lift over

dbSNP: rs34676691; hg19: chr18-2937815; API