Genetic Variant FOXN1:p.Asn182Asn (chr17-28524925-C-T) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_001369369.1(FOXN1):c.546C>T(p.Asn182Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00183 in 1,612,664 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). The gene FOXN1 is included in the ClinGen Criteria Specification Registry.

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0019 ( 2 hom. )

Consequence

FOXN1
NM_001369369.1 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -0.240

Publications

0 publications found

Variant links:

Genes affected

FOXN1 (HGNC:12765): (forkhead box N1) Mutations in the winged-helix transcription factor gene at the nude locus in mice and rats produce the pleiotropic phenotype of hairlessness and athymia, resulting in a severely compromised immune system. This gene is orthologous to the mouse and rat genes and encodes a similar DNA-binding transcription factor that is thought to regulate keratin gene expression. A mutation in this gene has been correlated with T-cell immunodeficiency, the skin disorder congenital alopecia, and nail dystrophy. Alternative splicing in the 5' UTR of this gene has been observed. [provided by RefSeq, Jul 2008]

FOXN1 links:

RSKR (HGNC:26314): (ribosomal protein S6 kinase related) Predicted to enable protein kinase activity. Predicted to be involved in protein phosphorylation. [provided by Alliance of Genome Resources, Apr 2022]

RSKR links:

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ACMG classification

Specifications for FOXN1 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.43).

BP6

Variant 17-28524925-C-T is Benign according to our data. Variant chr17-28524925-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 322419.

BP7

Synonymous conserved (PhyloP=-0.24 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00123 (187/152346) while in subpopulation NFE AF = 0.002 (136/68034). AF 95% confidence interval is 0.00173. There are 0 homozygotes in GnomAd4. There are 77 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 2 SD,AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001369369.1. 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
	FOXN1	NM_001369369.1	MANE Select	c.546C>T	p.Asn182Asn	synonymous	Exon 3 of 9	NP_001356298.1	O15353
	FOXN1	NM_003593.3		c.546C>T	p.Asn182Asn	synonymous	Exon 2 of 8	NP_003584.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FOXN1	ENST00000579795.6	TSL:1 MANE Select	c.546C>T	p.Asn182Asn	synonymous	Exon 3 of 9	ENSP00000464645.1	O15353
FOXN1	ENST00000226247.2	TSL:1	c.546C>T	p.Asn182Asn	synonymous	Exon 2 of 8	ENSP00000226247.2	O15353
RSKR	ENST00000481916.6	TSL:1	n.*1196-68816G>A		intron	N/A	ENSP00000436369.2	Q96LW2-2

Frequencies

GnomAD3 genomes

AF:

0.00123

AC:

187

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000827

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00200

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.00107

AC:

265

AN:

248818

AF XY:

0.00107

show subpopulations

Gnomad AFR exome

AF:

0.000312

Gnomad AMR exome

AF:

0.00128

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000471

Gnomad NFE exome

AF:

0.00167

Gnomad OTH exome

AF:

0.000330

GnomAD4 exome

AF:

0.00190

AC:

2770

AN:

1460318

Hom.:

Cov.:

AF XY:

0.00182

AC XY:

1323

AN XY:

726476

show subpopulations

African (AFR)

AF:

0.000299

AC:

AN:

33464

American (AMR)

AF:

0.00134

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.0000765

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.000812

AC:

AN:

86204

European-Finnish (FIN)

AF:

0.0000761

AC:

AN:

52582

Middle Eastern (MID)

AF:

0.000190

AC:

AN:

5250

European-Non Finnish (NFE)

AF:

0.00226

AC:

2518

AN:

1111970

Other (OTH)

AF:

0.00174

AC:

105

AN:

60318

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

148

296

445

593

741

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

184

276

368

460

<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:

0.00123

AC:

187

AN:

152346

Hom.:

Cov.:

AF XY:

0.00103

AC XY:

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.000577

AC:

AN:

41574

American (AMR)

AF:

0.00131

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000828

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00200

AC:

136

AN:

68034

Other (OTH)

AF:

0.00142

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.511

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:

0.00186

Hom.:

Bravo

AF:

0.00126

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00262

EpiControl

AF:

0.00196

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

T-cell immunodeficiency, congenital alopecia, and nail dystrophy (2)

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.43

CADD

Benign

4.1

(source)

DANN

Benign

0.84

PhyloP100

-0.24

Mutation Taster

=100/0

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