2-240766948-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4_StrongBP6

The NM_001244008.2(KIF1A):c.1651G>A(p.Val551Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000416 in 1,611,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

KIF1A
NM_001244008.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.499

Variant links:

Genes affected

KIF1A (HGNC:888): (kinesin family member 1A) The protein encoded by this gene is a member of the kinesin family and functions as an anterograde motor protein that transports membranous organelles along axonal microtubules. Mutations at this locus have been associated with spastic paraplegia-30 and hereditary sensory neuropathy IIC. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Apr 2012]

KIF1A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant in the KIF1A gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 112 curated pathogenic missense variants (we use a threshold of 10). The gene has 150 curated benign missense variants. Gene score misZ: 5.1579 (above the threshold of 3.09). Trascript score misZ: 5.0191 (above the threshold of 3.09). GenCC associations: The gene is linked to neuropathy, hereditary sensory, type 2C, hereditary spastic paraplegia 30, syndromic intellectual disability, intellectual disability, autosomal dominant 9, PEHO syndrome, autosomal dominant non-syndromic intellectual disability, hereditary sensory and autonomic neuropathy type 2.

BP4

Computational evidence support a benign effect (MetaRNN=0.031081825).

BP6

Variant 2-240766948-C-T is Benign according to our data. Variant chr2-240766948-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 444561.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIF1A	NM_001244008.2 link	c.1651G>A	p.Val551Ile	missense_variant	Exon 19 of 49	ENST00000498729.9	NP_001230937.1	Q12756-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KIF1A	ENST00000498729.9 link	c.1651G>A	p.Val551Ile	missense_variant	Exon 19 of 49	5	NM_001244008.2	ENSP00000438388.1		Q12756-3

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000691

AC:

AN:

246170

Hom.:

AF XY:

0.0000672

AC XY:

AN XY:

133928

show subpopulations

Gnomad AFR exome

AF:

0.0000664

Gnomad AMR exome

AF:

0.000175

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000298

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000168

GnomAD4 exome

AF:

0.0000404

AC:

AN:

1459722

Hom.:

Cov.:

AF XY:

0.0000427

AC XY:

AN XY:

726004

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000126

Gnomad4 SAS exome

AF:

0.000384

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.0000966

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000680

ESP6500AA

AF:

0.000232

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000413

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Sep 07, 2021

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Has not been previously published as pathogenic or benign to our knowledge; This amino acid substitution does not occur within the predicted motor domain of the protein, where most pathogenic missense variants in KIF1A have been identified (Lee et al., 2015).; In silico analysis supports that this missense variant does not alter protein structure/function -

Apr 01, 2017

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Neuropathy, hereditary sensory, type 2C;C5235139:Hereditary spastic paraplegia 30;C5393830:Intellectual disability, autosomal dominant 9

Benign:1

Nov 26, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.22

T;.;.;.;.;.;.;T;.;.;.;.;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.87

FATHMM_MKL

Benign

0.23

LIST_S2

Benign

0.80

.;T;T;T;T;T;.;T;T;T;T;T;T

M_CAP

Uncertain

0.12

MetaRNN

Benign

0.031

T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.83

MutationAssessor

Benign

-0.57

N;.;.;.;.;.;.;N;.;.;.;.;.

PrimateAI

Benign

0.42

PROVEAN

Benign

0.0

.;N;N;.;.;.;.;.;.;.;.;.;N

REVEL

Benign

0.15

Sift

Benign

1.0

.;T;T;.;.;.;.;.;.;.;.;.;T

Sift4G

Benign

0.71

.;T;T;.;.;.;.;.;.;.;.;.;.

Polyphen

0.0010

B;.;.;.;.;.;.;B;.;.;.;.;B

Vest4

0.089, 0.051

MVP

0.23

MPC

0.99

ClinPred

0.015

GERP RS

-0.095

Varity_R

0.042

gMVP

0.77

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