Genetic Variant KIF1B:p.Pro62Pro (chr1-10258495-C-T) – ACMG Classification: Benign (-15 pts)

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2

The NM_001365951.3(KIF1B):c.186C>T(p.Pro62Pro) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000281 in 1,613,646 control chromosomes in the GnomAD database, including 5 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 (★★). Synonymous variant affecting the same amino acid position (i.e. P62P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00078 ( 2 hom., cov: 33)

Exomes 𝑓: 0.00023 ( 3 hom. )

Consequence

KIF1B
NM_001365951.3 splice_region, synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: -2.91

Publications

2 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: ClinGen, Orphanet, Ambry Genetics, 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:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.34).

BP6

Variant 1-10258495-C-T is Benign according to our data. Variant chr1-10258495-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 240955.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.91 with no splicing effect.

BS2

High AC in GnomAd4 at 118 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001365951.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KIF1B	NM_001365951.3	MANE Select	c.186C>T	p.Pro62Pro	splice_region synonymous	Exon 4 of 49	NP_001352880.1	O60333-1
KIF1B	NM_001365952.1		c.186C>T	p.Pro62Pro	splice_region synonymous	Exon 4 of 49	NP_001352881.1	O60333-1
KIF1B	NM_015074.3		c.186C>T	p.Pro62Pro	splice_region synonymous	Exon 4 of 47	NP_055889.2	O60333-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KIF1B	ENST00000676179.1	MANE Select	c.186C>T	p.Pro62Pro	splice_region synonymous	Exon 4 of 49	ENSP00000502065.1	O60333-1
KIF1B	ENST00000377081.5	TSL:1	c.186C>T	p.Pro62Pro	splice_region synonymous	Exon 3 of 48	ENSP00000366284.1	O60333-4
KIF1B	ENST00000377086.5	TSL:1	c.186C>T	p.Pro62Pro	splice_region synonymous	Exon 4 of 49	ENSP00000366290.1	O60333-1

Frequencies

GnomAD3 genomes

AF:

0.000763

AC:

116

AN:

151954

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00218

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00187

Gnomad FIN

AF:

0.000379

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000465

AC:

117

AN:

251356

AF XY:

0.000493

show subpopulations

Gnomad AFR exome

AF:

0.00197

Gnomad AMR exome

AF:

0.000752

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.000693

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000230

AC:

336

AN:

1461574

Hom.:

Cov.:

AF XY:

0.000256

AC XY:

186

AN XY:

727112

show subpopulations

African (AFR)

AF:

0.00260

AC:

AN:

33474

American (AMR)

AF:

0.000760

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39686

South Asian (SAS)

AF:

0.000870

AC:

AN:

86224

European-Finnish (FIN)

AF:

0.000431

AC:

AN:

53406

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000926

AC:

103

AN:

1111774

Other (OTH)

AF:

0.000199

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000776

AC:

118

AN:

152072

Hom.:

Cov.:

AF XY:

0.000767

AC XY:

AN XY:

74318

show subpopulations

African (AFR)

AF:

0.00222

AC:

AN:

41476

American (AMR)

AF:

0.000262

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00187

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.000379

AC:

AN:

10558

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

67976

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

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:

0.000425

Hom.:

Bravo

AF:

0.000812

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Charcot-Marie-Tooth disease (1)

Charcot-Marie-Tooth disease type 2 (1)

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.34

CADD

Benign

0.075

(source)

DANN

Benign

0.64

PhyloP100

-2.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=92/8

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over