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1-171280910-T-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_001282693.2(FMO1):c.752T>C(p.Ile251Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000263 in 1,613,934 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0015 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

FMO1
NM_001282693.2 missense

Scores

3
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.164
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.006137997).
BP6
Variant 1-171280910-T-C is Benign according to our data. Variant chr1-171280910-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 730390.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FMO1NM_001282693.2 linkuse as main transcriptc.752T>C p.Ile251Thr missense_variant 6/9 ENST00000617670.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FMO1ENST00000617670.6 linkuse as main transcriptc.752T>C p.Ile251Thr missense_variant 6/91 NM_001282693.2 P1Q01740-1

Frequencies

GnomAD3 genomes
AF:
0.00152
AC:
231
AN:
152164
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00507
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.000330
AC:
83
AN:
251336
Hom.:
0
AF XY:
0.000258
AC XY:
35
AN XY:
135830
show subpopulations
Gnomad AFR exome
AF:
0.00443
Gnomad AMR exome
AF:
0.000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000130
AC:
190
AN:
1461652
Hom.:
0
Cov.:
32
AF XY:
0.000138
AC XY:
100
AN XY:
727132
show subpopulations
Gnomad4 AFR exome
AF:
0.00406
Gnomad4 AMR exome
AF:
0.000380
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.000348
GnomAD4 genome
AF:
0.00154
AC:
234
AN:
152282
Hom.:
2
Cov.:
32
AF XY:
0.00152
AC XY:
113
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.00513
Gnomad4 AMR
AF:
0.000850
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00237
Alfa
AF:
0.000318
Hom.:
0
Bravo
AF:
0.00164
ESP6500AA
AF:
0.00409
AC:
18
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000338
AC:
41
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeApr 24, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.45
Cadd
Benign
18
Dann
Benign
0.95
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.40
FATHMM_MKL
Benign
0.26
N
LIST_S2
Benign
0.61
T;.;.;T
M_CAP
Benign
0.032
D
MetaRNN
Benign
0.0061
T;T;T;T
MetaSVM
Benign
-0.97
T
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.30
T
PROVEAN
Uncertain
-3.1
D;.;D;D
REVEL
Benign
0.19
Sift
Uncertain
0.0040
D;.;D;D
Sift4G
Uncertain
0.025
D;D;D;D
Polyphen
0.77
.;P;P;P
Vest4
0.11
MVP
0.49
MPC
0.16
ClinPred
0.082
T
GERP RS
3.8
Varity_R
0.23
gMVP
0.47

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.

Other links and lift over

dbSNP: rs150268968; hg19: chr1-171250049; COSMIC: COSV61446030; COSMIC: COSV61446030; API