rs143669846

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PP2BP4_StrongBP6_Very_StrongBS2

The NM_001365951.3(KIF1B):c.5020G>A(p.Glu1674Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000547 in 1,614,162 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. E1674E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0029 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00030 ( 3 hom. )

Consequence

KIF1B
NM_001365951.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 9.35

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 -15 ACMG points.

PP2

Missense variant where missense usually causes diseases, KIF1B

BP4

Computational evidence support a benign effect (MetaRNN=0.007891476).

BP6

Variant 1-10374389-G-A is Benign according to our data. Variant chr1-10374389-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 219797.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd at 438 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
KIF1B	NM_001365951.3 linkuse as main transcript	c.5020G>A	p.Glu1674Lys	missense_variant	46/49	ENST00000676179.1
KIF1B	NM_001365952.1 linkuse as main transcript	c.5020G>A	p.Glu1674Lys	missense_variant	46/49
KIF1B	NM_015074.3 linkuse as main transcript	c.4882G>A	p.Glu1628Lys	missense_variant	44/47

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KIF1B	ENST00000676179.1 linkuse as main transcript	c.5020G>A	p.Glu1674Lys	missense_variant	46/49		NM_001365951.3	P1	O60333-1

Frequencies

GnomAD3 genomes

AF:

0.00288

AC:

438

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0102

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000958

GnomAD3 exomes

AF:

0.000736

AC:

185

AN:

251408

Hom.:

AF XY:

0.000508

AC XY:

AN XY:

135898

show subpopulations

Gnomad AFR exome

AF:

0.0104

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000303

AC:

443

AN:

1461870

Hom.:

Cov.:

AF XY:

0.000250

AC XY:

182

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.0111

Gnomad4 AMR exome

AF:

0.000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.000530

GnomAD4 genome

AF:

0.00289

AC:

440

AN:

152292

Hom.:

Cov.:

AF XY:

0.00248

AC XY:

185

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.0102

Gnomad4 AMR

AF:

0.000719

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000948

Alfa

AF:

0.000550

Hom.:

Bravo

AF:

0.00313

ESP6500AA

AF:

0.0116

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000931

AC:

113

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Molecular Genetics Laboratory, London Health Sciences Centre

- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 04, 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. -

Neuroblastoma

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 28, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Charcot-Marie-Tooth disease type 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 28, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.19

Cadd

Uncertain

Dann

Uncertain

0.99

Eigen

Benign

0.14

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.94

D;D;D;D;D

MetaRNN

Benign

0.0079

T;T;T;T;T

MetaSVM

Benign

-0.83

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-1.1

N;N;N;.;.

REVEL

Benign

0.22

Sift

Benign

0.20

T;T;T;.;.

Sift4G

Benign

0.33

T;T;T;T;T

Polyphen

0.72

P;B;.;B;.

Vest4

0.75

MVP

0.58

MPC

0.74

ClinPred

0.037

GERP RS

5.5

Varity_R

0.23

gMVP

0.46

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