Variant X-43802185-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_000898.5(MAOB):c.463C>T(p.Leu155Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,205,407 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 24)

Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

MAOB
NM_000898.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.164

Variant links:

Genes affected

MAOB (HGNC:6834): (monoamine oxidase B) The protein encoded by this gene belongs to the flavin monoamine oxidase family. It is a enzyme located in the mitochondrial outer membrane. It catalyzes the oxidative deamination of biogenic and xenobiotic amines and plays an important role in the metabolism of neuroactive and vasoactive amines in the central nervous sysytem and peripheral tissues. This protein preferentially degrades benzylamine and phenylethylamine. [provided by RefSeq, Jul 2008]

MAOB links:

MAOB (HGNC:):

MAOB links:

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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=0.11740941).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MAOB	NM_000898.5 linkuse as main transcript	c.463C>T	p.Leu155Phe	missense_variant	5/15	ENST00000378069.5	NP_000889.3	P27338-1
MAOB	XM_017029524.3 linkuse as main transcript	c.415C>T	p.Leu139Phe	missense_variant	5/15		XP_016885013.1	B7Z242

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MAOB	ENST00000378069.5 linkuse as main transcript	c.463C>T	p.Leu155Phe	missense_variant	5/15	1	NM_000898.5	ENSP00000367309.4		P27338-1
MAOB	ENST00000487544.1 linkuse as main transcript	n.789C>T		non_coding_transcript_exon_variant	6/7	5

Frequencies

GnomAD3 genomes

AF:

0.00000887

AC:

AN:

112709

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34865

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000279

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000183

AC:

AN:

1092643

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

358727

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000238

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000887

AC:

AN:

112764

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34930

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000279

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000825

AC:

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

Mar 24, 2023

The c.463C>T (p.L155F) alteration is located in exon 5 (coding exon 5) of the MAOB gene. This alteration results from a C to T substitution at nucleotide position 463, causing the leucine (L) at amino acid position 155 to be replaced by a phenylalanine (F). 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

0.13

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

9.9

DANN

Benign

0.48

DEOGEN2

Uncertain

0.71

FATHMM_MKL

Benign

0.69

LIST_S2

Uncertain

0.89

M_CAP

Uncertain

0.095

MetaRNN

Benign

0.12

MetaSVM

Benign

-0.55

MutationAssessor

Benign

0.55

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.93

REVEL

Benign

0.22

Sift

Benign

0.49

Sift4G

Benign

0.38

Polyphen

0.049

Vest4

0.13

MVP

0.61

MPC

0.53

ClinPred

0.24

GERP RS

1.7

Varity_R

0.14

gMVP

0.61

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.

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