Variant 20-4182814-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_175839.3(SMOX):c.1335C>T(p.Ala445=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00296 in 1,610,598 control chromosomes in the GnomAD database, including 117 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 58 hom., cov: 33)

Exomes 𝑓: 0.0016 ( 59 hom. )

Consequence

SMOX
NM_175839.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -2.42

Variant links:

Genes affected

SMOX (HGNC:15862): (spermine oxidase) Polyamines are ubiquitous polycationic alkylamines which include spermine, spermidine, putrescine, and agmatine. These molecules participate in a broad range of cellular functions which include cell cycle modulation, scavenging reactive oxygen species, and the control of gene expression. These molecules also play important roles in neurotransmission through their regulation of cell-surface receptor activity, involvement in intracellular signalling pathways, and their putative roles as neurotransmitters. This gene encodes an FAD-containing enzyme that catalyzes the oxidation of spermine to spermadine and secondarily produces hydrogen peroxide. Multiple transcript variants encoding different isoenzymes have been identified for this gene, some of which have failed to demonstrate significant oxidase activity on natural polyamine substrates. The characterized isoenzymes have distinctive biochemical characteristics and substrate specificities, suggesting the existence of additional levels of complexity in polyamine catabolism. [provided by RefSeq, Jul 2012]

SMOX links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.64).

BP6

Variant 20-4182814-C-T is Benign according to our data. Variant chr20-4182814-C-T is described in ClinVar as [Benign]. Clinvar id is 716245.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.42 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0536 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SMOX	NM_175839.3 linkuse as main transcript	c.1335C>T	p.Ala445=	synonymous_variant	5/7	ENST00000305958.9	NP_787033.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SMOX	ENST00000305958.9 linkuse as main transcript	c.1335C>T	p.Ala445=	synonymous_variant	5/7	1	NM_175839.3	ENSP00000307252	P4	Q9NWM0-1

Frequencies

GnomAD3 genomes

AF:

0.0159

AC:

2423

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0555

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00523

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000250

Gnomad OTH

AF:

0.0129

GnomAD3 exomes

AF:

0.00415

AC:

1029

AN:

247734

Hom.:

AF XY:

0.00300

AC XY:

403

AN XY:

134206

show subpopulations

Gnomad AFR exome

AF:

0.0572

Gnomad AMR exome

AF:

0.00208

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000141

Gnomad OTH exome

AF:

0.00164

GnomAD4 exome

AF:

0.00160

AC:

2339

AN:

1458338

Hom.:

Cov.:

AF XY:

0.00135

AC XY:

979

AN XY:

725646

show subpopulations

Gnomad4 AFR exome

AF:

0.0576

Gnomad4 AMR exome

AF:

0.00264

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000139

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000540

Gnomad4 OTH exome

AF:

0.00343

GnomAD4 genome

AF:

0.0160

AC:

2432

AN:

152260

Hom.:

Cov.:

AF XY:

0.0154

AC XY:

1146

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.0555

Gnomad4 AMR

AF:

0.00523

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.0128

Alfa

AF:

0.00847

Hom.:

Bravo

AF:

0.0178

Asia WGS

AF:

0.00318

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 31, 2019	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.64

CADD

Benign

3.4

DANN

Benign

0.84

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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