Genetic Variant NM_001370326.1:c.413T>C (chr17-56353858-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001370326.1(ANKFN1):c.413T>C(p.Met138Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,710 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: 0.0000062 ( 0 hom. )

Consequence

ANKFN1
NM_001370326.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.01

Publications

0 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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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.413T>C	p.Met138Thr	missense_variant	Exon 6 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.413T>C	p.Met138Thr	missense_variant	Exon 6 of 21		NM_001370326.1	ENSP00000507365.1		Q8N957-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000797

AC:

AN:

250916

AF XY:

0.00000738

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461710

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727160

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39672

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53406

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111926

Other (OTH)

AF:

0.0000331

AC:

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.453

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 09, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.422T>C (p.M141T) alteration is located in exon 5 (coding exon 5) of the ANKFN1 gene. This alteration results from a T to C substitution at nucleotide position 422, causing the methionine (M) at amino acid position 141 to be replaced by a threonine (T). 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

0.63

BayesDel_addAF

Benign

-0.015

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.11

T;T;T;.

Eigen

Benign

0.091

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.91

D;D;D;D

M_CAP

Benign

0.018

MetaRNN

Uncertain

0.48

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.6

.;L;.;.

PhyloP100

8.0

PrimateAI

Uncertain

0.60

PROVEAN

Uncertain

-3.2

.;D;.;.

REVEL

Benign

0.24

Sift

Uncertain

0.0010

.;D;.;.

Sift4G

Uncertain

0.0080

.;D;D;D

Polyphen

0.049

.;B;.;.

Vest4

0.46, 0.77

MutPred

0.58

.;Loss of helix (P = 0.0304);Loss of helix (P = 0.0304);.;

MVP

0.65

MPC

0.17

ClinPred

0.86

GERP RS

5.2

Varity_R

0.62

gMVP

0.87

Mutation Taster

=76/24

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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NM_001370326.1:c.413T>C

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