rs672601362

Variant summary

Our verdict is Pathogenic. Variant got 15 ACMG points: 15P and 0B. PM2PP2PP3_StrongPP5_Very_Strong

The NM_001244008.2(KIF1A):​c.173C>T​(p.Ser58Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: not found (cov: 32)

Consequence

KIF1A
NM_001244008.2 missense

Scores

16
2
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:9

Conservation

PhyloP100: 9.75
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 15 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.981
PP5
Variant 2-240789246-G-A is Pathogenic according to our data. Variant chr2-240789246-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 162052.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-240789246-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KIF1ANM_001244008.2 linkc.173C>T p.Ser58Leu missense_variant Exon 3 of 49 ENST00000498729.9 NP_001230937.1 Q12756-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KIF1AENST00000498729.9 linkc.173C>T p.Ser58Leu missense_variant Exon 3 of 49 5 NM_001244008.2 ENSP00000438388.1 Q12756-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
30
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Intellectual disability, autosomal dominant 9 Pathogenic:3
Mar 10, 2016
Genetic Services Laboratory, University of Chicago
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 01, 2014
CHU Sainte-Justine Research Center, University of Montreal
Significance: Likely pathogenic
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Aug 28, 2017
Molecular Genetics Laboratory, BC Children's and BC Women's Hospitals
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Hereditary spastic paraplegia 30 Pathogenic:2
-
Paris Brain Institute, Inserm - ICM
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 28, 2019
Mendelics
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Neurodevelopmental delay Pathogenic:1
-
Centre de Biologie Pathologie Génétique, Centre Hospitalier Universitaire de Lille
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Inborn genetic diseases Pathogenic:1
Apr 13, 2018
Ambry Genetics
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Pathogenic:1
Jul 07, 2022
GeneDx
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 28332297, 27146152, 34487232, 28333917, 29915382, 25265257, 31455732, 30612907, 26125038, 21820098, 21376300, 33880452) -

Neuropathy, hereditary sensory, type 2C;C5235139:Hereditary spastic paraplegia 30;C5393830:Intellectual disability, autosomal dominant 9 Pathogenic:1
Apr 02, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine with leucine at codon 58 of the KIF1A protein (p.Ser58Leu). The serine residue is highly conserved and there is a large physicochemical difference between serine and leucine. This variant is not present in population databases (ExAC no frequency). This variant has been observed in individual(s) with autosomal dominant complicated hereditary spastic paraplegia (PMID: 25265257, 27146152, 28333917, 29915382). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 162052). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.89
D;.;.;.;.;.;.;D;.;.;.;.;.;.
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
1.0
.;D;D;D;D;D;.;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.87
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.50
D
MutationAssessor
Pathogenic
3.4
M;M;.;.;.;.;.;M;.;.;.;M;.;.
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-5.0
.;D;D;.;.;.;.;.;.;.;.;D;.;.
REVEL
Pathogenic
0.94
Sift
Pathogenic
0.0
.;D;D;.;.;.;.;.;.;.;.;D;.;.
Sift4G
Pathogenic
0.0010
.;D;D;.;.;.;.;.;.;.;.;.;.;.
Polyphen
1.0
D;.;.;.;.;.;.;D;.;.;.;D;.;.
Vest4
0.97, 0.87
MutPred
0.89
Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);Loss of disorder (P = 0.0106);
MVP
0.87
MPC
2.3
ClinPred
1.0
D
GERP RS
4.5
Varity_R
0.94
gMVP
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs672601362; hg19: chr2-241728663; COSMIC: COSV100241786; COSMIC: COSV100241786; API