chr14-104701379-A-T

Position:

• chr14-104701379-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_022489.4(INF2):​c.14A>T​(p.Glu5Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E5K) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: INF2 NM_022489.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.28

Genes affected

INF2 (HGNC:23791): (inverted formin 2) This gene represents a member of the formin family of proteins. It is considered a diaphanous formin due to the presence of a diaphanous inhibitory domain located at the N-terminus of the encoded protein. Studies of a similar mouse protein indicate that the protein encoded by this locus may function in polymerization and depolymerization of actin filaments. Mutations at this locus have been associated with focal segmental glomerulosclerosis 5.[provided by RefSeq, Aug 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.32278708).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
INF2	NM_022489.4	c.14A>T	p.Glu5Val	missense_variant	2/23	ENST00000392634.9
INF2	NM_001031714.4	c.14A>T	p.Glu5Val	missense_variant	2/22
INF2	NM_032714.3	c.14A>T	p.Glu5Val	missense_variant	2/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
INF2	ENST00000392634.9	c.14A>T	p.Glu5Val	missense_variant	2/23	5	NM_022489.4	P4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Focal segmental glomerulosclerosis 5;C4302667:Charcot-Marie-Tooth disease dominant intermediate E Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 14, 2023

This sequence change replaces glutamic acid, which is acidic and polar, with valine, which is neutral and non-polar, at codon 5 of the INF2 protein (p.Glu5Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with INF2-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on INF2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.080
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Benign	0.22	.;.;T
Eigen	Uncertain	0.28
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.75	T;T;T
M_CAP	Pathogenic	0.41	D
MetaRNN	Benign	0.32	T;T;T
MetaSVM	Uncertain	0.36	D
MutationAssessor	Benign	1.6	L;L;L
MutationTaster	Benign	0.99	D;D;D
PrimateAI	Uncertain	0.62	T
PROVEAN	Uncertain	-3.6	D;D;D
REVEL	Uncertain	0.47
Sift	Uncertain	0.0030	D;T;D
Sift4G	Uncertain	0.0040	D;T;D
Polyphen		0.99	D;.;D
Vest4		0.32
MutPred		0.44		Loss of ubiquitination at A4 (P = 0.0426);Loss of ubiquitination at A4 (P = 0.0426);Loss of ubiquitination at A4 (P = 0.0426);
MVP		0.66
MPC		2.6
ClinPred		0.97	D
GERP RS		3.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.24
gMVP		0.79

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: chr14-105167716;