chr1-240092803-C-G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001305424.2(FMN2):​c.694C>G​(p.Pro232Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000017 in 1,585,682 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. P232P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

FMN2
NM_001305424.2 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -0.0680

Publications

1 publications found
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]
FMN2 Gene-Disease associations (from GenCC):
  • intellectual disability, autosomal recessive 47
    Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • autosomal recessive non-syndromic intellectual disability
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.045554787).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001305424.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FMN2
NM_020066.5
MANE Select
c.694C>Gp.Pro232Ala
missense
Exon 1 of 18NP_064450.3
FMN2
NM_001305424.2
c.694C>Gp.Pro232Ala
missense
Exon 1 of 19NP_001292353.1
FMN2
NM_001348094.2
c.694C>Gp.Pro232Ala
missense
Exon 1 of 15NP_001335023.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FMN2
ENST00000319653.14
TSL:5 MANE Select
c.694C>Gp.Pro232Ala
missense
Exon 1 of 18ENSP00000318884.9
FMN2
ENST00000447095.5
TSL:3
c.-87+24730C>G
intron
N/AENSP00000409308.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
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:
0.0000104
AC:
2
AN:
192328
AF XY:
0.00000954
show subpopulations
Gnomad AFR exome
AF:
0.000190
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:
0.0000160
AC:
23
AN:
1433494
Hom.:
0
Cov.:
88
AF XY:
0.0000239
AC XY:
17
AN XY:
710634
show subpopulations
African (AFR)
AF:
0.000455
AC:
15
AN:
32990
American (AMR)
AF:
0.00
AC:
0
AN:
39794
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25510
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38424
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83620
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50040
Middle Eastern (MID)
AF:
0.000588
AC:
3
AN:
5100
European-Non Finnish (NFE)
AF:
9.10e-7
AC:
1
AN:
1098726
Other (OTH)
AF:
0.0000675
AC:
4
AN:
59290
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.445
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74342
show subpopulations
African (AFR)
AF:
0.0000965
AC:
4
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.00000843
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.061
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
8.4
DANN
Benign
0.78
DEOGEN2
Benign
0.097
T
Eigen
Benign
-0.69
Eigen_PC
Benign
-0.71
FATHMM_MKL
Benign
0.037
N
LIST_S2
Benign
0.43
T
M_CAP
Benign
0.047
D
MetaRNN
Benign
0.046
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
L
PhyloP100
-0.068
PrimateAI
Uncertain
0.57
T
PROVEAN
Uncertain
-3.1
D
REVEL
Benign
0.033
Sift
Benign
0.25
T
Sift4G
Benign
0.062
T
Polyphen
0.075
B
Vest4
0.15
MutPred
0.17
Loss of glycosylation at P232 (P = 0.018)
MVP
0.30
MPC
0.77
ClinPred
0.050
T
GERP RS
1.1
Varity_R
0.051
gMVP
0.12
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs753172887; hg19: chr1-240256103; API