rs1555373625

Variant names:

• chr14-104703341-T-C
• rs1555373625
• NM_022489.4:c.554T>C

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Strong

The NM_022489.4(INF2):​c.554T>C​(p.Leu185Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency: Genomes: not found (cov: 34)
• Consequence: INF2 NM_022489.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 7.66
• 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: Likely_pathogenic. The variant received 8 ACMG points.

• PM1: In a hotspot region, there are 8 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 4 uncertain in NM_022489.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.976

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.554T>C	p.Leu185Pro	missense	Exon 4 of 23	NP_071934.3
	INF2	NM_001426862.1		c.554T>C	p.Leu185Pro	missense	Exon 4 of 23	NP_001413791.1
	INF2	NM_001426863.1		c.554T>C	p.Leu185Pro	missense	Exon 4 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.554T>C	p.Leu185Pro	missense	Exon 4 of 23	ENSP00000376410.4
	INF2	ENST00000398337.8	TSL:1	c.554T>C	p.Leu185Pro	missense	Exon 4 of 5	ENSP00000381380.4
	INF2	ENST00000617571.5	TSL:1	n.554T>C		non_coding_transcript_exon	Exon 3 of 22	ENSP00000483829.2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 34

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Focal segmental glomerulosclerosis 5;C4302667:Charcot-Marie-Tooth disease dominant intermediate E (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.46	D
BayesDel_noAF	Pathogenic	0.42
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.78	D
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.78	T
M_CAP	Pathogenic	0.77	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Uncertain	0.74	D
MutationAssessor	Pathogenic	3.1	M
PhyloP100		7.7
PrimateAI	Uncertain	0.61	T
PROVEAN	Pathogenic	-5.6	D
REVEL	Pathogenic	0.89
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.94
MutPred		0.74		Gain of catalytic residue at E184 (P = 2e-04)
MVP		1.0
MPC		3.1
ClinPred		1.0	D
GERP RS		4.5
Varity_R		0.97
gMVP		1.0
Mutation Taster		=9/91	disease causing

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

Other links and lift over

dbSNP: rs1555373625; hg19: chr14-105169678;