rs769120676

Variant names:

• chr14-104709654-C-G
• rs769120676
• NM_022489.4:c.2087C>G

Your query was ambiguous. Multiple possible variants found:

• chr14-104709654-C-G
• chr14-104709654-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_022489.4(INF2):​c.2087C>G​(p.Ala696Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,404 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A696V) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: INF2 NM_022489.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.613
• Publications: 0 publications found

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]

INF2 Gene-Disease associations (from GenCC):

• Charcot-Marie-Tooth disease dominant intermediate E

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet
• focal segmental glomerulosclerosis 5

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• familial idiopathic steroid-resistant nephrotic syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.0906682).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022489.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	INF2	NM_022489.4	MANE Select	c.2087C>G	p.Ala696Gly	missense	Exon 12 of 23	NP_071934.3
	INF2	NM_001426862.1		c.2087C>G	p.Ala696Gly	missense	Exon 12 of 23	NP_001413791.1
	INF2	NM_001426863.1		c.2087C>G	p.Ala696Gly	missense	Exon 12 of 23	NP_001413792.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	INF2	ENST00000392634.9	TSL:5 MANE Select	c.2087C>G	p.Ala696Gly	missense	Exon 12 of 23	ENSP00000376410.4
	INF2	ENST00000617571.5	TSL:1	n.2087C>G		non_coding_transcript_exon	Exon 11 of 22	ENSP00000483829.2
	INF2	ENST00000675207.1		c.2183C>G	p.Ala728Gly	missense	Exon 12 of 23	ENSP00000502644.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460404 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726494

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52172

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111816

Other (OTH) AF: 0.00 AC: 0 AN: 60356

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

Aug 10, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 571220). This variant has not been reported in the literature in individuals affected with INF2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 696 of the INF2 protein (p.Ala696Gly).

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.084
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	15
DANN	Uncertain	0.98
DEOGEN2	Benign	0.061	T
Eigen	Benign	-0.58
Eigen_PC	Benign	-0.64
FATHMM_MKL	Benign	0.44	N
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.091	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.0	M
PhyloP100		0.61
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-2.1	N
REVEL	Benign	0.048
Sift	Benign	0.17	T
Sift4G	Benign	0.35	T
Polyphen		0.34	B
Vest4		0.15
MutPred		0.48		Gain of catalytic residue at A701 (P = 0.0185)
MVP		0.17
MPC		0.25
ClinPred		0.18	T
GERP RS		2.0
PromoterAI		-0.029	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.11
gMVP		0.096
Mutation Taster		=90/10	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs769120676; hg19: chr14-105175991;