Genetic Variant ANKFN1:p.Ser110Tyr (chr17-56350906-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001370326.1(ANKFN1):c.329C>A(p.Ser110Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,576 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ANKFN1
NM_001370326.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91

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 made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANKFN1	NM_001370326.1 link	c.329C>A	p.Ser110Tyr	missense_variant	Exon 5 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.329C>A	p.Ser110Tyr	missense_variant	Exon 5 of 21		NM_001370326.1	ENSP00000507365.1		Q8N957-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250806

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135534

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461576

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727072

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

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

Feb 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.338C>A (p.S113Y) alteration is located in exon 4 (coding exon 4) of the ANKFN1 gene. This alteration results from a C to A substitution at nucleotide position 338, causing the serine (S) at amino acid position 113 to be replaced by a tyrosine (Y). 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

Pathogenic

0.59

BayesDel_addAF

Benign

-0.056

BayesDel_noAF

Benign

-0.090

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.077

T;T;T;.

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

D;D;D;D

M_CAP

Benign

0.034

MetaRNN

Uncertain

0.47

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.90

.;L;.;.

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-2.1

.;N;.;.

REVEL

Benign

0.21

Sift

Uncertain

0.0030

.;D;.;.

Sift4G

Uncertain

0.0060

.;D;D;D

Polyphen

1.0

.;D;.;.

Vest4

0.89, 0.88

MutPred

0.27

.;Gain of loop (P = 0.0166);Gain of loop (P = 0.0166);.;

MVP

0.79

MPC

0.60

ClinPred

0.78

GERP RS

5.8

Varity_R

0.21

gMVP

0.78

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over