Genetic Variant INF2:p.Gln1249Gln (chr14-104715336-G-A) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_022489.4(INF2):c.3747G>A(p.Gln1249Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000601 in 1,613,372 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00040 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

INF2
NM_022489.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.820

Publications

0 publications found

Variant links:

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

INF2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.59).

BP6

Variant 14-104715336-G-A is Benign according to our data. Variant chr14-104715336-G-A is described in ClinVar as Benign. ClinVar VariationId is 261621.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.82 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0004 (61/152356) while in subpopulation AFR AF = 0.00142 (59/41582). AF 95% confidence interval is 0.00113. There are 0 homozygotes in GnomAd4. There are 32 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.

BS2

High AC in GnomAd4 at 61 AD gene.

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
INF2	NM_022489.4	MANE Select	c.3747G>A	p.Gln1249Gln	synonymous	Exon 22 of 23	NP_071934.3
INF2	NM_001426863.1		c.3747G>A	p.Gln1249Gln	synonymous	Exon 22 of 23	NP_001413792.1
INF2	NM_001426864.1		c.3747G>A	p.Gln1249Gln	synonymous	Exon 22 of 23	NP_001413793.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
INF2	ENST00000392634.9	TSL:5 MANE Select	c.3747G>A	p.Gln1249Gln	synonymous	Exon 22 of 23	ENSP00000376410.4
INF2	ENST00000617571.5	TSL:1	n.*596G>A		non_coding_transcript_exon	Exon 21 of 22	ENSP00000483829.2
INF2	ENST00000617571.5	TSL:1	n.*596G>A		3_prime_UTR	Exon 21 of 22	ENSP00000483829.2

Frequencies

GnomAD3 genomes

AF:

0.000368

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00130

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000923

AC:

AN:

249158

AF XY:

0.0000666

show subpopulations

Gnomad AFR exome

AF:

0.00136

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000246

AC:

AN:

1461016

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

726792

show subpopulations

African (AFR)

AF:

0.000777

AC:

AN:

33474

American (AMR)

AF:

0.0000447

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52950

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111716

Other (OTH)

AF:

0.000133

AC:

AN:

60346

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000400

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.000429

AC XY:

AN XY:

74514

show subpopulations

African (AFR)

AF:

0.00142

AC:

AN:

41582

American (AMR)

AF:

0.000131

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68026

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:

0.000179

Hom.:

Bravo

AF:

0.000389

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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

Benign:1

Nov 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.59

CADD

Benign

2.1

(source)

DANN

Benign

0.75

PhyloP100

0.82

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

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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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over