Variant 1-171278719-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001282693.2(FMO1):c.485-10T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00125 in 1,556,348 control chromosomes in the GnomAD database, including 24 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0062 ( 12 hom., cov: 32)

Exomes 𝑓: 0.00071 ( 12 hom. )

Consequence

FMO1
NM_001282693.2 intron

Scores

Splicing: ADA: 0.001418

Clinical Significance

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

Conservation

PhyloP100: -1.11

Variant links:

Genes affected

FMO1 (HGNC:3769): (flavin containing dimethylaniline monoxygenase 1) Metabolic N-oxidation of the diet-derived amino-trimethylamine (TMA) is mediated by flavin-containing monooxygenase and is subject to an inherited FMO3 polymorphism in man resulting in a small subpopulation with reduced TMA N-oxidation capacity resulting in fish odor syndrome Trimethylaminuria. Three forms of the enzyme, FMO1 found in fetal liver, FMO2 found in adult liver, and FMO3 are encoded by genes clustered in the 1q23-q25 region. Flavin-containing monooxygenases are NADPH-dependent flavoenzymes that catalyzes the oxidation of soft nucleophilic heteroatom centers in drugs, pesticides, and xenobiotics. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]

FMO1 links:

FMO1 (HGNC:):

FMO1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.8).

BP6

Variant 1-171278719-T-C is Benign according to our data. Variant chr1-171278719-T-C is described in ClinVar as [Benign]. Clinvar id is 782396.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00622 (947/152346) while in subpopulation AFR AF= 0.0203 (843/41586). AF 95% confidence interval is 0.0191. There are 12 homozygotes in gnomad4. There are 439 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 12 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FMO1	NM_001282693.2 linkuse as main transcript	c.485-10T>C		intron_variant		ENST00000617670.6	NP_001269622.1	Q01740-1A0A024R934B2RCG5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FMO1	ENST00000617670.6 linkuse as main transcript	c.485-10T>C		intron_variant		1	NM_001282693.2	ENSP00000481732.1		Q01740-1

Frequencies

GnomAD3 genomes

AF:

0.00621

AC:

946

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0203

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00458

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.00716

GnomAD3 exomes

AF:

0.00186

AC:

434

AN:

232840

Hom.:

AF XY:

0.00127

AC XY:

160

AN XY:

126164

show subpopulations

Gnomad AFR exome

AF:

0.0218

Gnomad AMR exome

AF:

0.00233

Gnomad ASJ exome

AF:

0.00142

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000129

Gnomad OTH exome

AF:

0.00146

GnomAD4 exome

AF:

0.000707

AC:

992

AN:

1404002

Hom.:

Cov.:

AF XY:

0.000578

AC XY:

403

AN XY:

696674

show subpopulations

Gnomad4 AFR exome

AF:

0.0205

Gnomad4 AMR exome

AF:

0.00253

Gnomad4 ASJ exome

AF:

0.00164

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000716

Gnomad4 OTH exome

AF:

0.00193

GnomAD4 genome

AF:

0.00622

AC:

947

AN:

152346

Hom.:

Cov.:

AF XY:

0.00589

AC XY:

439

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0203

Gnomad4 AMR

AF:

0.00458

Gnomad4 ASJ

AF:

0.00173

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00709

Alfa

AF:

0.00412

Hom.:

Bravo

AF:

0.00766

Asia WGS

AF:

0.00144

AC:

AN:

3478

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	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jun 29, 2018	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

CADD

Benign

3.7

DANN

Benign

0.70

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0014

dbscSNV1_RF

Benign

0.022

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