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GeneBe

chr1-171196663-TG-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBA1

The NM_001460.5(FMO2):​c.337del​(p.Val113Ter) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0556 in 1,612,710 control chromosomes in the GnomAD database, including 4,390 homozygotes. Variant has been reported in ClinVar as Benign (β˜…). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.10 ( 1493 hom., cov: 31)
Exomes 𝑓: 0.051 ( 2897 hom. )

Consequence

FMO2
NM_001460.5 frameshift

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.92
Variant links:
Genes affected
FMO2 (HGNC:3770): (flavin containing dimethylaniline monoxygenase 2) This gene encodes a flavin-containing monooxygenase family member. It is an NADPH-dependent enzyme that catalyzes the N-oxidation of some primary alkylamines through an N-hydroxylamine intermediate. However, some human populations contain an allele (FMO2*2A) with a premature stop codon, resulting in a protein that is C-terminally-truncated, has no catalytic activity, and is likely degraded rapidly. This gene is found in a cluster with other related family members on chromosome 1. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP6
Variant 1-171196663-TG-T is Benign according to our data. Variant chr1-171196663-TG-T is described in ClinVar as [Benign]. Clinvar id is 402870.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-171196663-TG-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.256 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FMO2NM_001460.5 linkuse as main transcriptc.337del p.Val113Ter frameshift_variant 4/9 ENST00000209929.10
LOC124900413XR_007066731.1 linkuse as main transcriptn.640del non_coding_transcript_exon_variant 2/2
LOC105371611XR_922278.4 linkuse as main transcriptn.515-28476del intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FMO2ENST00000209929.10 linkuse as main transcriptc.337del p.Val113Ter frameshift_variant 4/91 NM_001460.5 P1
ENST00000669750.1 linkuse as main transcriptn.449-28476del intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.104
AC:
15819
AN:
152080
Hom.:
1490
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.260
Gnomad AMI
AF:
0.00110
Gnomad AMR
AF:
0.0568
Gnomad ASJ
AF:
0.0940
Gnomad EAS
AF:
0.000577
Gnomad SAS
AF:
0.0528
Gnomad FIN
AF:
0.0232
Gnomad MID
AF:
0.0637
Gnomad NFE
AF:
0.0463
Gnomad OTH
AF:
0.0883
GnomAD3 exomes
AF:
0.0567
AC:
14216
AN:
250882
Hom.:
841
AF XY:
0.0537
AC XY:
7281
AN XY:
135580
show subpopulations
Gnomad AFR exome
AF:
0.269
Gnomad AMR exome
AF:
0.0361
Gnomad ASJ exome
AF:
0.0896
Gnomad EAS exome
AF:
0.000545
Gnomad SAS exome
AF:
0.0513
Gnomad FIN exome
AF:
0.0238
Gnomad NFE exome
AF:
0.0467
Gnomad OTH exome
AF:
0.0518
GnomAD4 exome
AF:
0.0506
AC:
73873
AN:
1460512
Hom.:
2897
Cov.:
30
AF XY:
0.0499
AC XY:
36268
AN XY:
726604
show subpopulations
Gnomad4 AFR exome
AF:
0.269
Gnomad4 AMR exome
AF:
0.0389
Gnomad4 ASJ exome
AF:
0.0871
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.0528
Gnomad4 FIN exome
AF:
0.0235
Gnomad4 NFE exome
AF:
0.0460
Gnomad4 OTH exome
AF:
0.0594
GnomAD4 genome
AF:
0.104
AC:
15844
AN:
152198
Hom.:
1493
Cov.:
31
AF XY:
0.101
AC XY:
7488
AN XY:
74412
show subpopulations
Gnomad4 AFR
AF:
0.260
Gnomad4 AMR
AF:
0.0567
Gnomad4 ASJ
AF:
0.0940
Gnomad4 EAS
AF:
0.000579
Gnomad4 SAS
AF:
0.0528
Gnomad4 FIN
AF:
0.0232
Gnomad4 NFE
AF:
0.0463
Gnomad4 OTH
AF:
0.0874
Alfa
AF:
0.0354
Hom.:
33
Bravo
AF:
0.114
Asia WGS
AF:
0.0280
AC:
98
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMar 28, 2016Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Frequency in ESP (all): 1453/12520=11.6% -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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.

Other links and lift over

dbSNP: rs28369860; hg19: chr1-171165802; COSMIC: COSV52950502; COSMIC: COSV52950502; API