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GeneBe

19-54174102-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_024298.5(MBOAT7):​c.1361G>A​(p.Arg454Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000454 in 1,606,896 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000046 ( 1 hom. )

Consequence

MBOAT7
NM_024298.5 missense

Scores

1
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.754
Variant links:
Genes affected
MBOAT7 (HGNC:15505): (membrane bound O-acyltransferase domain containing 7) This gene encodes a member of the membrane-bound O-acyltransferases family of integral membrane proteins that have acyltransferase activity. The encoded protein is a lysophosphatidylinositol acyltransferase that has specificity for arachidonoyl-CoA as an acyl donor. This protein is involved in the reacylation of phospholipids as part of the phospholipid remodeling pathway known as the Land cycle. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0384565).
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000461 (67/1454742) while in subpopulation SAS AF= 0.000292 (25/85742). AF 95% confidence interval is 0.000203. There are 1 homozygotes in gnomad4_exome. There are 43 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MBOAT7NM_024298.5 linkuse as main transcriptc.1361G>A p.Arg454Gln missense_variant 8/8 ENST00000245615.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MBOAT7ENST00000245615.6 linkuse as main transcriptc.1361G>A p.Arg454Gln missense_variant 8/81 NM_024298.5 P1Q96N66-1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152034
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000911
AC:
22
AN:
241534
Hom.:
0
AF XY:
0.000122
AC XY:
16
AN XY:
131438
show subpopulations
Gnomad AFR exome
AF:
0.0000645
Gnomad AMR exome
AF:
0.0000899
Gnomad ASJ exome
AF:
0.000211
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000299
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000646
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000461
AC:
67
AN:
1454742
Hom.:
1
Cov.:
31
AF XY:
0.0000594
AC XY:
43
AN XY:
723714
show subpopulations
Gnomad4 AFR exome
AF:
0.0000303
Gnomad4 AMR exome
AF:
0.0000686
Gnomad4 ASJ exome
AF:
0.0000777
Gnomad4 EAS exome
AF:
0.0000254
Gnomad4 SAS exome
AF:
0.000292
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.000133
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152154
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000453
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000412
AC:
5

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2023MBOAT7: PM2, BP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
15
DANN
Uncertain
0.99
Eigen
Benign
-0.49
Eigen_PC
Benign
-0.38
FATHMM_MKL
Benign
0.30
N
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.038
T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-0.99
N;N;N
REVEL
Benign
0.0050
Sift
Benign
0.047
D;D;T
Sift4G
Benign
0.10
T;T;T
Polyphen
0.011
B;B;B
Vest4
0.12
MutPred
0.32
.;.;Gain of ubiquitination at K456 (P = 0.039);
MVP
0.28
MPC
0.20
ClinPred
0.027
T
GERP RS
2.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.040
gMVP
0.18

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: rs759231014; hg19: chr19-54677796; COSMIC: COSV55475572; COSMIC: COSV55475572; API