rs114084418

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001365951.3(KIF1B):c.363+6A>C variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00367 in 1,612,624 control chromosomes in the GnomAD database, including 127 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 58 hom., cov: 33)

Exomes 𝑓: 0.0023 ( 69 hom. )

Consequence

KIF1B
NM_001365951.3 splice_donor_region, intron

Scores

Splicing: ADA: 0.00008140

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.192

Variant links:

Genes affected

KIF1B (HGNC:16636): (kinesin family member 1B) Predicted to enable microtubule binding activity and plus-end-directed microtubule motor activity. Predicted to be involved in chemical synaptic transmission; dense core granule cytoskeletal transport; and vesicle-mediated transport. Predicted to act upstream of or within mitochondrion transport along microtubule. Predicted to be located in cytoplasmic vesicle membrane and neuron projection. Predicted to be part of kinesin complex. Predicted to be active in several cellular components, including axon; dendrite; and microtubule. Implicated in Charcot-Marie-Tooth disease type 2A1; carcinoma (multiple); multiple sclerosis; neuroblastoma; and pheochromocytoma. Biomarker of hepatocellular carcinoma. [provided by Alliance of Genome Resources, Apr 2022]

KIF1B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.8).

BP6

Variant 1-10258678-A-C is Benign according to our data. Variant chr1-10258678-A-C is described in ClinVar as [Benign]. Clinvar id is 291468.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-10258678-A-C is described in Lovd as [Benign].

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0533 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KIF1B	NM_001365951.3 linkuse as main transcript	c.363+6A>C		splice_donor_region_variant, intron_variant		ENST00000676179.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KIF1B	ENST00000676179.1 linkuse as main transcript	c.363+6A>C		splice_donor_region_variant, intron_variant			NM_001365951.3	P1	O60333-1

Frequencies

GnomAD3 genomes

AF:

0.0164

AC:

2498

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0553

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00707

Gnomad ASJ

AF:

0.000865

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0348

Gnomad NFE

AF:

0.000911

Gnomad OTH

AF:

0.0110

GnomAD3 exomes

AF:

0.00502

AC:

1259

AN:

250566

Hom.:

AF XY:

0.00404

AC XY:

548

AN XY:

135532

show subpopulations

Gnomad AFR exome

AF:

0.0603

Gnomad AMR exome

AF:

0.00443

Gnomad ASJ exome

AF:

0.000795

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000980

Gnomad OTH exome

AF:

0.00262

GnomAD4 exome

AF:

0.00234

AC:

3419

AN:

1460314

Hom.:

Cov.:

AF XY:

0.00211

AC XY:

1536

AN XY:

726578

show subpopulations

Gnomad4 AFR exome

AF:

0.0605

Gnomad4 AMR exome

AF:

0.00514

Gnomad4 ASJ exome

AF:

0.000651

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000128

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.000716

Gnomad4 OTH exome

AF:

0.00472

GnomAD4 genome

AF:

0.0164

AC:

2500

AN:

152310

Hom.:

Cov.:

AF XY:

0.0164

AC XY:

1218

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.0552

Gnomad4 AMR

AF:

0.00699

Gnomad4 ASJ

AF:

0.000865

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000911

Gnomad4 OTH

AF:

0.0109

Alfa

AF:

0.00738

Hom.:

Bravo

AF:

0.0187

Asia WGS

AF:

0.00318

AC:

AN:

3478

EpiCase

AF:

0.00125

EpiControl

AF:

0.00119

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 22, 2018	- -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 29, 2023	- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 28, 2020

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Charcot-Marie-Tooth disease

Benign:1

Benign, criteria provided, single submitter

clinical testing

Molecular Genetics Laboratory, London Health Sciences Centre

- -

Neuroblastoma

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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. -

Charcot-Marie-Tooth disease type 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Feb 01, 2024

- -

KIF1B-related condition

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 28, 2019

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

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

Cadd

Benign

Dann

Benign

0.81

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000081

dbscSNV1_RF

Benign

0.020

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.

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