chr1-10343234-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001365951.3(KIF1B):c.3635C>T(p.Pro1212Leu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000541 in 1,614,050 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1212Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0028 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00030 ( 2 hom. )

Consequence

KIF1B
NM_001365951.3 missense, splice_region

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 5.71

Publications

4 publications found

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 Gene-Disease associations (from GenCC):

pheochromocytoma
Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
Charcot-Marie-Tooth disease type 2A1
Inheritance: AD Classification: SUPPORTIVE, LIMITED, NO_KNOWN Submitted by: Ambry Genetics, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)
hereditary pheochromocytoma-paraganglioma
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
neuroblastoma, susceptibility to, 1
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

KIF1B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007263273).

BP6

Variant 1-10343234-C-T is Benign according to our data. Variant chr1-10343234-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 215882.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 431 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIF1B	NM_001365951.3 link	c.3635C>T	p.Pro1212Leu	missense_variant, splice_region_variant	Exon 34 of 49	ENST00000676179.1	NP_001352880.1
KIF1B	NM_001365952.1 link	c.3635C>T	p.Pro1212Leu	missense_variant, splice_region_variant	Exon 34 of 49		NP_001352881.1
KIF1B	NM_015074.3 link	c.3497C>T	p.Pro1166Leu	missense_variant, splice_region_variant	Exon 32 of 47		NP_055889.2	O60333-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KIF1B	ENST00000676179.1 link	c.3635C>T	p.Pro1212Leu	missense_variant, splice_region_variant	Exon 34 of 49		NM_001365951.3	ENSP00000502065.1		O60333-1

Frequencies

GnomAD3 genomes

AF:

0.00283

AC:

431

AN:

152108

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00940

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00183

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00287

GnomAD2 exomes

AF:

0.000649

AC:

163

AN:

251332

AF XY:

0.000508

show subpopulations

Gnomad AFR exome

AF:

0.00831

Gnomad AMR exome

AF:

0.000231

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.000978

GnomAD4 exome

AF:

0.000303

AC:

443

AN:

1461824

Hom.:

Cov.:

AF XY:

0.000248

AC XY:

180

AN XY:

727212

show subpopulations

African (AFR)

AF:

0.0102

AC:

340

AN:

33476

American (AMR)

AF:

0.000470

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000580

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000270

AC:

AN:

1111968

Other (OTH)

AF:

0.000762

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.459

Heterozygous variant carriers

109

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00283

AC:

431

AN:

152226

Hom.:

Cov.:

AF XY:

0.00274

AC XY:

204

AN XY:

74426

show subpopulations

African (AFR)

AF:

0.00937

AC:

389

AN:

41524

American (AMR)

AF:

0.00183

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000103

AC:

AN:

68016

Other (OTH)

AF:

0.00284

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

123

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.000932

Hom.:

Bravo

AF:

0.00326

ESP6500AA

AF:

0.00477

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000791

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000356

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Oct 02, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

KIF1B: BS1 -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Charcot-Marie-Tooth disease

Benign:1

Molecular Genetics Laboratory, London Health Sciences Centre

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

May 10, 2024

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely 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 type 2

Benign:1

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome

Benign:1

Dec 07, 2015

Vantari Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Uncertain

0.040

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.67

.;D;.;.;.

Eigen

Benign

0.18

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

D;D;D;D;D

M_CAP

Uncertain

0.091

MetaRNN

Benign

0.0073

T;T;T;T;T

MetaSVM

Uncertain

-0.14

MutationAssessor

Benign

1.7

.;L;L;.;.

PhyloP100

5.7

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-5.0

D;D;D;.;.

REVEL

Uncertain

0.54

Sift

Benign

0.069

T;T;T;.;.

Sift4G

Benign

0.27

T;T;T;T;T

Polyphen

1.0

D;B;.;B;.

Vest4

0.43

MVP

0.62

MPC

1.3

ClinPred

0.037

GERP RS

4.8

Varity_R

0.25

gMVP

0.51

Mutation Taster

=96/4

polymorphism

(source)

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

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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