Genetic Variant IGFN1:p.Arg49Trp (chr1-201195856-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

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

The NM_001164586.2(IGFN1):c.145C>T(p.Arg49Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000432 in 1,551,512 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000042 ( 1 hom. )

Consequence

IGFN1
NM_001164586.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91

Publications

0 publications found

Variant links:

Genes affected

IGFN1 (HGNC:24607): (immunoglobulin like and fibronectin type III domain containing 1) Predicted to be involved in homophilic cell adhesion via plasma membrane adhesion molecules; retina layer formation; and synapse assembly. Predicted to be located in Z disc and nucleus. Predicted to be active in synapse. [provided by Alliance of Genome Resources, Apr 2022]

IGFN1 links:

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=0.053415805).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164586.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IGFN1	NM_001164586.2	MANE Select	c.145C>T	p.Arg49Trp	missense	Exon 4 of 24	NP_001158058.1	Q86VF2-5
	IGFN1	NM_001367841.1		c.145C>T	p.Arg49Trp	missense	Exon 4 of 25	NP_001354770.1	Q86VF2-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IGFN1	ENST00000335211.9	TSL:5 MANE Select	c.145C>T	p.Arg49Trp	missense	Exon 4 of 24	ENSP00000334714.4	Q86VF2-5
IGFN1	ENST00000437879.6	TSL:1	n.145C>T		non_coding_transcript_exon	Exon 4 of 26	ENSP00000399041.2	Q86VF2-4
IGFN1	ENST00000295591.12	TSL:5	c.145C>T	p.Arg49Trp	missense	Exon 4 of 25	ENSP00000295591.9	Q86VF2-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000962

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000160

AC:

AN:

156270

AF XY:

0.000181

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000407

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00156

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000496

Gnomad OTH exome

AF:

0.000229

GnomAD4 exome

AF:

0.0000422

AC:

AN:

1399210

Hom.:

Cov.:

AF XY:

0.0000377

AC XY:

AN XY:

690110

show subpopulations

African (AFR)

AF:

0.0000316

AC:

AN:

31598

American (AMR)

AF:

0.0000280

AC:

AN:

35682

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25172

East Asian (EAS)

AF:

0.000588

AC:

AN:

35730

South Asian (SAS)

AF:

0.000101

AC:

AN:

79186

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49284

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.0000204

AC:

AN:

1078858

Other (OTH)

AF:

0.000103

AC:

AN:

58002

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.0000525

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.0000940

AC XY:

AN XY:

74472

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41556

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000964

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000389

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.31

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Uncertain

-0.080

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.061

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Uncertain

0.77

LIST_S2

Uncertain

0.88

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.053

MetaSVM

Uncertain

-0.23

MutationAssessor

Pathogenic

3.0

PhyloP100

2.9

PrimateAI

Benign

0.47

PROVEAN

Uncertain

-3.5

REVEL

Uncertain

0.44

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0

Vest4

0.29

MutPred

0.59

Loss of disorder (P = 0.0071)

MVP

0.66

ClinPred

0.38

GERP RS

4.1

Varity_R

0.50

gMVP

0.46

Mutation Taster

=256/44

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over