chr1-171203866-T-C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_001460.5(FMO2):​c.629T>C​(p.Val210Ala) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,300 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

FMO2
NM_001460.5 missense, splice_region

Scores

3
12
1
Splicing: ADA: 0.4226
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.56

Publications

0 publications found
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 was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.861

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001460.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FMO2
NM_001460.5
MANE Select
c.629T>Cp.Val210Ala
missense splice_region
Exon 6 of 9NP_001451.2Q99518
FMO2
NM_001365900.2
c.434T>Cp.Val145Ala
missense splice_region
Exon 5 of 8NP_001352829.1
FMO2
NM_001301347.2
c.-32T>C
splice_region
Exon 4 of 7NP_001288276.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FMO2
ENST00000209929.10
TSL:1 MANE Select
c.629T>Cp.Val210Ala
missense splice_region
Exon 6 of 9ENSP00000209929.8Q99518
FMO2
ENST00000895514.1
c.629T>Cp.Val210Ala
missense splice_region
Exon 6 of 9ENSP00000565573.1
FMO2
ENST00000895513.1
c.626T>Cp.Val209Ala
missense splice_region
Exon 6 of 9ENSP00000565572.1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152194
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000289
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000200
AC:
5
AN:
250356
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
16
AN:
1460988
Hom.:
0
Cov.:
31
AF XY:
0.00000963
AC XY:
7
AN XY:
726828
show subpopulations
African (AFR)
AF:
0.000389
AC:
13
AN:
33434
American (AMR)
AF:
0.00
AC:
0
AN:
44648
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26116
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39672
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53366
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5744
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111442
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60330
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000919
AC:
14
AN:
152312
Hom.:
0
Cov.:
32
AF XY:
0.0000940
AC XY:
7
AN XY:
74476
show subpopulations
African (AFR)
AF:
0.000337
AC:
14
AN:
41576
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.56
BayesDel_addAF
Uncertain
0.044
T
BayesDel_noAF
Uncertain
0.13
CADD
Pathogenic
28
DANN
Uncertain
1.0
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.045
D
MetaRNN
Pathogenic
0.86
D
MetaSVM
Uncertain
0.20
D
PhyloP100
3.6
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-3.7
D
REVEL
Uncertain
0.58
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0030
D
Vest4
0.72
MutPred
0.76
Loss of ubiquitination at K205 (P = 0.0637)
MVP
0.75
ClinPred
0.99
D
GERP RS
6.1
gMVP
0.52
Mutation Taster
=73/27
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.42
dbscSNV1_RF
Benign
0.64
SpliceAI score (max)
0.090
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs142177103; hg19: chr1-171173005; COSMIC: COSV105071133; COSMIC: COSV105071133; API