rs201366820

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004984.4(KIF5A):c.2199-4G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00114 in 1,608,870 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00074 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0012 ( 2 hom. )

Consequence

KIF5A
NM_004984.4 splice_region, intron

Scores

Splicing: ADA: 0.0001782

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -6.33

Publications

1 publications found

Variant links:

Genes affected

KIF5A (HGNC:6323): (kinesin family member 5A) This gene encodes a member of the kinesin family of proteins. Members of this family are part of a multisubunit complex that functions as a microtubule motor in intracellular organelle transport. Mutations in this gene cause autosomal dominant spastic paraplegia 10. [provided by RefSeq, Jul 2008]

KIF5A Gene-Disease associations (from GenCC):

amyotrophic lateral sclerosis, susceptibility to, 25
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Illumina, Labcorp Genetics (formerly Invitae)
inherited neurodegenerative disorder
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
myoclonus, intractable, neonatal
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Illumina, G2P, Labcorp Genetics (formerly Invitae)
hereditary spastic paraplegia 10
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
autosomal dominant Charcot-Marie-Tooth disease type 2 due to KIF5A mutation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

KIF5A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BP6

Variant 12-57576757-G-A is Benign according to our data. Variant chr12-57576757-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 219549.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000742 (113/152300) while in subpopulation NFE AF = 0.00129 (88/68028). AF 95% confidence interval is 0.00107. There are 0 homozygotes in GnomAd4. There are 57 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 113 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIF5A	NM_004984.4 link	c.2199-4G>A		splice_region_variant, intron_variant	Intron 19 of 28	ENST00000455537.7	NP_004975.2	Q12840
KIF5A	NM_001354705.2 link	c.1932-4G>A		splice_region_variant, intron_variant	Intron 16 of 25		NP_001341634.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KIF5A	ENST00000455537.7 link	c.2199-4G>A		splice_region_variant, intron_variant	Intron 19 of 28	1	NM_004984.4	ENSP00000408979.2		Q12840

Frequencies

GnomAD3 genomes

AF:

0.000743

AC:

113

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00151

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00129

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.000859

AC:

216

AN:

251316

AF XY:

0.000824

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00195

Gnomad NFE exome

AF:

0.00139

Gnomad OTH exome

AF:

0.00147

GnomAD4 exome

AF:

0.00118

AC:

1716

AN:

1456570

Hom.:

Cov.:

AF XY:

0.00108

AC XY:

782

AN XY:

724994

show subpopulations

African (AFR)

AF:

0.000150

AC:

AN:

33392

American (AMR)

AF:

0.0000671

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.00

AC:

AN:

39666

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86026

European-Finnish (FIN)

AF:

0.00295

AC:

157

AN:

53196

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00135

AC:

1500

AN:

1107516

Other (OTH)

AF:

0.000830

AC:

AN:

60212

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

155

233

310

388

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

108

162

216

270

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000742

AC:

113

AN:

152300

Hom.:

Cov.:

AF XY:

0.000765

AC XY:

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.000168

AC:

AN:

41548

American (AMR)

AF:

0.0000653

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00151

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00129

AC:

AN:

68028

Other (OTH)

AF:

0.000474

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.520

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00104

Hom.:

Bravo

AF:

0.000487

EpiCase

AF:

0.000545

EpiControl

AF:

0.000771

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Aug 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

KIF5A: BP4, BS1 -

Oct 03, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 17, 2020

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Myoclonus, intractable, neonatal

Benign:1

Mar 20, 2019

Centre for Mendelian Genomics, University Medical Centre Ljubljana

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was classified as: Likely benign. The following ACMG criteria were applied in classifying this variant: BP4,BP6. -

Spastic paraplegia

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

KIF5A-related disorder

Benign:1

Sep 07, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Hereditary spastic paraplegia 10

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Hereditary spastic paraplegia

Benign:1

May 12, 2017

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.71

CADD

Benign

0.34

(source)

DANN

Benign

0.77

PhyloP100

-6.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00018

dbscSNV1_RF

Benign

0.016

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over