chr8-30132676-C-T

Position:

chr8-30132676-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001100916.2(MBOAT4):c.575G>A(p.Gly192Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000206 in 1,551,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

MBOAT4
NM_001100916.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.314

Variant links:

Genes affected

MBOAT4 (HGNC:32311): (membrane bound O-acyltransferase domain containing 4) Enables serine O-acyltransferase activity. Involved in peptidyl-serine octanoylation. Predicted to be located in endoplasmic reticulum. Predicted to be active in membrane. Predicted to be integral component of endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

MBOAT4 links:

LEPROTL1 (HGNC:6555): (leptin receptor overlapping transcript like 1) Enables identical protein binding activity. Predicted to be involved in late endosome to vacuole transport via multivesicular body sorting pathway and negative regulation of growth hormone receptor signaling pathway. Predicted to be integral component of membrane. Predicted to be active in endosome. [provided by Alliance of Genome Resources, Apr 2022]

LEPROTL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.077601224).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MBOAT4	NM_001100916.2 link	c.575G>A	p.Gly192Glu	missense_variant	3/3	ENST00000320542.4	NP_001094386.1	Q96T53-1
LEPROTL1	NM_001128208.2 link	c.280-4596C>T		intron_variant			NP_001121680.1	O95214-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
MBOAT4	ENST00000320542.4 link	c.575G>A	p.Gly192Glu	missense_variant	3/3	1	NM_001100916.2	ENSP00000314196.3	Q96T53-1
LEPROTL1	ENST00000523116.5 link	c.280-4596C>T		intron_variant		2		ENSP00000428281.1	O95214-2
LEPROTL1	ENST00000442880.6 link	c.394+187C>T		intron_variant		2		ENSP00000412803.2	C9JVM4
LEPROTL1	ENST00000520739.5 link	n.279+28190C>T		intron_variant		4		ENSP00000429398.1	E5RIL0

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000917

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:

0.000478

GnomAD3 exomes

AF:

0.0000767

AC:

AN:

156436

Hom.:

AF XY:

0.0000724

AC XY:

AN XY:

82876

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000446

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:

0.000228

GnomAD4 exome

AF:

0.0000121

AC:

AN:

1399446

Hom.:

Cov.:

AF XY:

0.0000145

AC XY:

AN XY:

690228

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000364

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:

0.00000185

Gnomad4 OTH exome

AF:

0.0000345

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152256

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000915

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:

0.000473

Bravo

AF:

0.0000793

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 12, 2024

The c.575G>A (p.G192E) alteration is located in exon 3 (coding exon 3) of the MBOAT4 gene. This alteration results from a G to A substitution at nucleotide position 575, causing the glycine (G) at amino acid position 192 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.58

CADD

Benign

7.9

DANN

Uncertain

0.98

DEOGEN2

Benign

0.34

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.59

M_CAP

Benign

0.0055

MetaRNN

Benign

0.078

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

PrimateAI

Benign

0.27

PROVEAN

Pathogenic

-4.5

REVEL

Benign

0.027

Sift

Benign

0.038

Sift4G

Benign

0.23

Polyphen

0.58

Vest4

0.081

MutPred

0.42

Gain of solvent accessibility (P = 0.0171);

MVP

0.31

ClinPred

0.13

GERP RS

1.8

Varity_R

0.24

gMVP

0.38

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over