dbSNP rs532648: FOXN1:p.Ala599Thr (chr17-28537284-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001369369.1(FOXN1):c.1795G>A(p.Ala599Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,662 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A599P) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FOXN1
NM_001369369.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0710

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

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05055937).

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FOXN1	NM_001369369.1	MANE Select	c.1795G>A	p.Ala599Thr	missense	Exon 9 of 9	NP_001356298.1
	FOXN1	NM_003593.3		c.1795G>A	p.Ala599Thr	missense	Exon 8 of 8	NP_003584.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
FOXN1	ENST00000579795.6	TSL:1 MANE Select	c.1795G>A	p.Ala599Thr	missense	Exon 9 of 9	ENSP00000464645.1
FOXN1	ENST00000226247.2	TSL:1	c.1795G>A	p.Ala599Thr	missense	Exon 8 of 8	ENSP00000226247.2
RSKR	ENST00000481916.6	TSL:1	n.*1195+66767C>T		intron	N/A	ENSP00000436369.2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461662

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727144

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53290

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111934

Other (OTH)

AF:

0.00

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.093

BayesDel_noAF

Benign

-0.37

CADD

Benign

4.3

(source)

DANN

Benign

0.91

DEOGEN2

Benign

0.11

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.43

M_CAP

Benign

0.039

MetaRNN

Benign

0.051

MetaSVM

Benign

-0.58

MutationAssessor

Benign

0.0

PhyloP100

0.071

PrimateAI

Benign

0.41

PROVEAN

Benign

0.39

REVEL

Benign

0.18

Sift

Benign

0.35

Sift4G

Benign

0.39

Polyphen

0.0

Vest4

0.098

MutPred

0.27

Gain of glycosylation at A599 (P = 0.0035)

MVP

0.20

MPC

0.014

ClinPred

0.16

GERP RS

2.2

Varity_R

0.031

gMVP

0.13

Mutation Taster

=99/1

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

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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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over