NM_020066.5:c.361C>G

Variant names:

• chr1-240092470-C-G
• NM_020066.5:c.361C>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_020066.5(FMN2):​c.361C>G​(p.Leu121Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,456,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L121I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: FMN2 NM_020066.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.53

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]

ACMG classification

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=0.122020006).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FMN2	NM_020066.5	c.361C>G	p.Leu121Val	missense_variant	Exon 1 of 18	ENST00000319653.14	NP_064450.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FMN2	ENST00000319653.14	c.361C>G	p.Leu121Val	missense_variant	Exon 1 of 18	5	NM_020066.5	ENSP00000318884.9
FMN2	ENST00000447095.5	c.-87+24397C>G		intron_variant	Intron 2 of 6	3		ENSP00000409308.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1456966 Hom.: 0 Cov.: 89 AF XY: 0.00000138 AC XY: 1 AN XY: 724438

Gnomad4 AFR exome AF: 0.00

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	23
DANN	Benign	0.91
DEOGEN2	Benign	0.10	T
Eigen	Benign	0.034
Eigen_PC	Benign	0.11
FATHMM_MKL	Benign	0.59	D
LIST_S2	Benign	0.69	T
M_CAP	Uncertain	0.26	D
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.8	L
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.13
Sift	Uncertain	0.0090	D
Sift4G	Benign	0.14	T
Polyphen		0.47	P
Vest4		0.088
MutPred		0.060		Gain of methylation at K117 (P = 0.0976);
MVP		0.50
MPC		0.80
ClinPred		0.54	D
GERP RS		3.4
Varity_R		0.19
gMVP		0.032

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-240255770;