NM_000898.5:c.587C>T

Variant names:

• chrX-43797156-G-A
• NM_000898.5:c.587C>T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4 BS2

The NM_000898.5(MAOB):​c.587C>T​(p.Thr196Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,094,977 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0000027 (0 hom. 3 hem.)
• Consequence: MAOB NM_000898.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.23

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]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.27928507).
• BS2: High Hemizygotes in GnomAdExome4 at 3 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAOB	NM_000898.5	c.587C>T	p.Thr196Ile	missense_variant	Exon 6 of 15	ENST00000378069.5	NP_000889.3
MAOB	XM_017029524.3	c.539C>T	p.Thr180Ile	missense_variant	Exon 6 of 15		XP_016885013.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAOB	ENST00000378069.5	c.587C>T	p.Thr196Ile	missense_variant	Exon 6 of 15	1	NM_000898.5	ENSP00000367309.4
MAOB	ENST00000487544.1	n.*56C>T		downstream_gene_variant		5

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome AF: 0.00000274 AC: 3 AN: 1094977 Hom.: 0 Cov.: 28 AF XY: 0.00000832 AC XY: 3 AN XY: 360601

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: 0.00000357

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 23

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Benign	-0.071	T
BayesDel_noAF	Benign	-0.34
CADD	Benign	19
DANN	Benign	0.94
DEOGEN2	Uncertain	0.74	D
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.081	D
MetaRNN	Benign	0.28	T
MetaSVM	Uncertain	0.053	D
MutationAssessor	Uncertain	2.1	M
PrimateAI	Uncertain	0.52	T
PROVEAN	Benign	-1.6	N
REVEL	Benign	0.22
Sift	Benign	0.35	T
Sift4G	Benign	0.44	T
Polyphen		0.0060	B
Vest4		0.091
MutPred		0.61		Gain of sheet (P = 0.0221);
MVP		0.81
MPC		0.52
ClinPred		0.45	T
GERP RS		3.6
Varity_R		0.27
gMVP		0.41

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-43656403;