Genetic Variant ANKFN1:p.Ser31Asn (chr17-56326259-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_001370326.1(ANKFN1):c.92G>A(p.Ser31Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,580 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

ANKFN1
NM_001370326.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.59

Publications

1 publications found

Variant links:

Genes affected

ANKFN1 (HGNC:26766): (ankyrin repeat and fibronectin type III domain containing 1) Predicted to be involved in establishment of mitotic spindle orientation and regulation of establishment of bipolar cell polarity. Predicted to act upstream of or within behavioral fear response; equilibrioception; and locomotor rhythm. Predicted to be active in spindle. [provided by Alliance of Genome Resources, Apr 2022]

ANKFN1 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=0.05324036).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANKFN1	NM_001370326.1 link	c.92G>A	p.Ser31Asn	missense_variant	Exon 4 of 21	ENST00000682825.1	NP_001357255.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ANKFN1	ENST00000682825.1 link	c.92G>A	p.Ser31Asn	missense_variant	Exon 4 of 21		NM_001370326.1	ENSP00000507365.1		Q8N957-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

250780

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461580

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727080

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.000126

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86202

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53406

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111842

Other (OTH)

AF:

0.0000166

AC:

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.446

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 05, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.101G>A (p.S34N) alteration is located in exon 3 (coding exon 3) of the ANKFN1 gene. This alteration results from a G to A substitution at nucleotide position 101, causing the serine (S) at amino acid position 34 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.70

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0051

T;T;T;.

Eigen

Benign

-0.25

Eigen_PC

Benign

0.020

FATHMM_MKL

Benign

0.72

LIST_S2

Benign

0.65

T;T;T;T

M_CAP

Benign

0.0029

MetaRNN

Benign

0.053

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.34

.;N;.;.

PhyloP100

1.6

PrimateAI

Benign

0.43

PROVEAN

Benign

-0.24

.;N;.;.

REVEL

Benign

0.12

Sift

Benign

0.47

.;T;.;.

Sift4G

Benign

0.71

.;T;T;T

Polyphen

0.0

.;B;.;.

Vest4

0.32, 0.29

MutPred

0.15

.;Loss of phosphorylation at S34 (P = 0.0185);Loss of phosphorylation at S34 (P = 0.0185);.;

MVP

0.61

MPC

0.13

ClinPred

0.14

GERP RS

5.1

Varity_R

0.092

gMVP

0.29

Mutation Taster

=90/10

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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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17-56326259-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over