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GeneBe

1-240092201-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020066.5(FMN2):c.92A>G(p.Asp31Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000723 in 1,562,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000048 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000075 ( 0 hom. )

Consequence

FMN2
NM_020066.5 missense

Scores

1
4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.44
Variant links:
Genes affected
FMN2 (HGNC:14074): (formin 2) This gene is a member of the formin homology protein family. The encoded protein is thought to have essential roles in organization of the actin cytoskeleton and in cell polarity. This protein mediates the formation of an actin mesh that positions the spindle during oogenesis and also regulates the formation of actin filaments in the nucleus. This protein also forms a perinuclear actin/focal-adhesion system that regulates the shape and position of the nucleus during cell migration. Mutations in this gene have been associated with infertility and also with an autosomal recessive form of intellectual disability (MRT47). Alternatively spliced transcript variants have been identified. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1287201).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FMN2NM_020066.5 linkuse as main transcriptc.92A>G p.Asp31Gly missense_variant 1/18 ENST00000319653.14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FMN2ENST00000319653.14 linkuse as main transcriptc.92A>G p.Asp31Gly missense_variant 1/185 NM_020066.5 P1Q9NZ56-1
FMN2ENST00000447095.5 linkuse as main transcriptc.-87+24128A>G intron_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000478
AC:
7
AN:
146534
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000252
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:
0.0000901
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000411
AC:
8
AN:
194760
Hom.:
0
AF XY:
0.0000566
AC XY:
6
AN XY:
106044
show subpopulations
Gnomad AFR exome
AF:
0.000188
Gnomad AMR exome
AF:
0.0000338
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:
0.0000482
Gnomad OTH exome
AF:
0.000200
GnomAD4 exome
AF:
0.0000748
AC:
106
AN:
1416446
Hom.:
0
Cov.:
31
AF XY:
0.0000642
AC XY:
45
AN XY:
701042
show subpopulations
Gnomad4 AFR exome
AF:
0.0000610
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000901
Gnomad4 OTH exome
AF:
0.000103
GnomAD4 genome
AF:
0.0000478
AC:
7
AN:
146534
Hom.:
0
Cov.:
33
AF XY:
0.0000561
AC XY:
4
AN XY:
71264
show subpopulations
Gnomad4 AFR
AF:
0.0000252
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000901
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000455
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000423
AC:
5

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 25, 2022The c.92A>G (p.D31G) alteration is located in exon 1 (coding exon 1) of the FMN2 gene. This alteration results from a A to G substitution at nucleotide position 92, causing the aspartic acid (D) at amino acid position 31 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.42
Cadd
Uncertain
24
Dann
Benign
0.76
DEOGEN2
Benign
0.38
T
Eigen
Benign
-0.24
Eigen_PC
Benign
-0.17
FATHMM_MKL
Benign
0.50
D
LIST_S2
Benign
0.57
T
M_CAP
Benign
0.080
D
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
0.62
N
PrimateAI
Pathogenic
0.90
D
PROVEAN
Uncertain
-4.0
D
REVEL
Benign
0.12
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0090
D
Polyphen
0.024
B
Vest4
0.22
MutPred
0.076
Gain of MoRF binding (P = 0.0369);
MVP
0.35
MPC
1.0
ClinPred
0.20
T
GERP RS
3.9
Varity_R
0.55
gMVP
0.14

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: rs745730585; hg19: chr1-240255501; API