rs104894100

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_006412.4(AGPAT2):​c.683T>C​(p.Leu228Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000347 in 1,439,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

AGPAT2
NM_006412.4 missense

Scores

12
5
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 4.90

Publications

8 publications found
Variant links:
Genes affected
AGPAT2 (HGNC:325): (1-acylglycerol-3-phosphate O-acyltransferase 2) This gene encodes a member of the 1-acylglycerol-3-phosphate O-acyltransferase family. The protein is located within the endoplasmic reticulum membrane and converts lysophosphatidic acid to phosphatidic acid, the second step in de novo phospholipid biosynthesis. Mutations in this gene have been associated with congenital generalized lipodystrophy (CGL), or Berardinelli-Seip syndrome, a disease characterized by a near absence of adipose tissue and severe insulin resistance. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]
AGPAT2 Gene-Disease associations (from GenCC):
  • congenital generalized lipodystrophy type 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • Berardinelli-Seip congenital lipodystrophy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • neonatal diabetes mellitus
    Inheritance: AR Classification: LIMITED Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.993
PP5
Variant 9-136673906-A-G is Pathogenic according to our data. Variant chr9-136673906-A-G is described in ClinVar as Pathogenic. ClinVar VariationId is 6627.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AGPAT2NM_006412.4 linkc.683T>C p.Leu228Pro missense_variant Exon 6 of 6 ENST00000371696.7 NP_006403.2 O15120-1A0A024R8I7
AGPAT2NM_001012727.2 linkc.587T>C p.Leu196Pro missense_variant Exon 5 of 5 NP_001012745.1 O15120-2A0A024R8F9
AGPAT2XM_047422636.1 linkc.374T>C p.Leu125Pro missense_variant Exon 6 of 6 XP_047278592.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AGPAT2ENST00000371696.7 linkc.683T>C p.Leu228Pro missense_variant Exon 6 of 6 1 NM_006412.4 ENSP00000360761.2 O15120-1
AGPAT2ENST00000371694.7 linkc.587T>C p.Leu196Pro missense_variant Exon 5 of 5 1 ENSP00000360759.3 O15120-2
AGPAT2ENST00000472820.1 linkn.611T>C non_coding_transcript_exon_variant Exon 4 of 4 1

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD4 exome
AF:
0.00000347
AC:
5
AN:
1439674
Hom.:
0
Cov.:
31
AF XY:
0.00000140
AC XY:
1
AN XY:
714546
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33056
American (AMR)
AF:
0.00
AC:
0
AN:
42750
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25346
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82678
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51336
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4284
European-Non Finnish (NFE)
AF:
0.00000454
AC:
5
AN:
1102108
Other (OTH)
AF:
0.00
AC:
0
AN:
59378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
GnomAD4 genome
Cov.:
34
Alfa
AF:
0.0000936
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Congenital generalized lipodystrophy type 1 Pathogenic:1
May 01, 2002
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.49
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.81
.;D;D
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.71
T;.;T
M_CAP
Pathogenic
0.82
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.0
.;H;H
PhyloP100
4.9
PrimateAI
Uncertain
0.65
T
PROVEAN
Pathogenic
-6.5
D;D;D
REVEL
Pathogenic
0.91
Sift
Uncertain
0.0010
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;D;D
Vest4
0.93
MutPred
0.93
.;Gain of disorder (P = 0.033);Gain of disorder (P = 0.033);
MVP
0.99
MPC
0.86
ClinPred
1.0
D
GERP RS
4.1
Varity_R
0.83
gMVP
0.98
Mutation Taster
=6/94
disease causing (ClinVar)

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: rs104894100; hg19: chr9-139568358; API