Variant chr1-171104004-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001002294.3(FMO3):c.321+31C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000831 in 1,498,540 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0039 ( 7 hom., cov: 32)

Exomes 𝑓: 0.00048 ( 6 hom. )

Consequence

FMO3
NM_001002294.3 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.500

Variant links:

Genes affected

FMO3 (HGNC:3771): (flavin containing dimethylaniline monoxygenase 3) Flavin-containing monooxygenases (FMO) are an important class of drug-metabolizing enzymes that catalyze the NADPH-dependent oxygenation of various nitrogen-,sulfur-, and phosphorous-containing xenobiotics such as therapeutic drugs, dietary compounds, pesticides, and other foreign compounds. The human FMO gene family is composed of 5 genes and multiple pseudogenes. FMO members have distinct developmental- and tissue-specific expression patterns. The expression of this FMO3 gene, the major FMO expressed in adult liver, can vary up to 20-fold between individuals. This inter-individual variation in FMO3 expression levels is likely to have significant effects on the rate at which xenobiotics are metabolised and, therefore, is of considerable interest to the pharmaceutical industry. This transmembrane protein localizes to the endoplasmic reticulum of many tissues. Alternative splicing of this gene results in multiple transcript variants encoding different isoforms. Mutations in this gene cause the disorder trimethylaminuria (TMAu) which is characterized by the accumulation and excretion of unmetabolized trimethylamine and a distinctive body odor. In healthy individuals, trimethylamine is primarily converted to the non odorous trimethylamine N-oxide.[provided by RefSeq, Jan 2016]

FMO3 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 1-171104004-C-A is Benign according to our data. Variant chr1-171104004-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 260070.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FMO3	NM_001002294.3 linkuse as main transcript	c.321+31C>A		intron_variant		ENST00000367755.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FMO3	ENST00000367755.9 linkuse as main transcript	c.321+31C>A		intron_variant		1	NM_001002294.3	P1
	ENST00000669750.1 linkuse as main transcript	n.533+64100G>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.00392

AC:

597

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0134

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00138

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00383

GnomAD3 exomes

AF:

0.000948

AC:

234

AN:

246724

Hom.:

AF XY:

0.000839

AC XY:

112

AN XY:

133494

show subpopulations

Gnomad AFR exome

AF:

0.0116

Gnomad AMR exome

AF:

0.000526

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000658

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000898

Gnomad OTH exome

AF:

0.00282

GnomAD4 exome

AF:

0.000480

AC:

646

AN:

1346264

Hom.:

Cov.:

AF XY:

0.000445

AC XY:

301

AN XY:

676118

show subpopulations

Gnomad4 AFR exome

AF:

0.0149

Gnomad4 AMR exome

AF:

0.000698

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000715

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000337

Gnomad4 OTH exome

AF:

0.00162

GnomAD4 genome

AF:

0.00394

AC:

600

AN:

152276

Hom.:

Cov.:

AF XY:

0.00375

AC XY:

279

AN XY:

74450

show subpopulations

Gnomad4 AFR

AF:

0.0135

Gnomad4 AMR

AF:

0.00137

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00379

Alfa

AF:

0.00232

Hom.:

Bravo

AF:

0.00480

Asia WGS

AF:

0.00289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

2.1

DANN

Benign

0.40

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