rs201500946

Variant names:

• chr1-10295089-C-A
• NM_001365951.3:c.1594C>A

Your query was ambiguous. Multiple possible variants found:

• chr1-10295089-C-A
• chr1-10295089-C-G
• chr1-10295089-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001365951.3(KIF1B):​c.1594C>A​(p.Pro532Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P532A) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: KIF1B NM_001365951.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.91

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.774

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIF1B	NM_001365951.3	c.1594C>A	p.Pro532Thr	missense_variant	Exon 18 of 49	ENST00000676179.1	NP_001352880.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KIF1B	ENST00000676179.1	c.1594C>A	p.Pro532Thr	missense_variant	Exon 18 of 49		NM_001365951.3	ENSP00000502065.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 28

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Oct 29, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.P486T variant (also known as c.1456C>A), located in coding exon 15 of the KIF1B gene, results from a C to A substitution at nucleotide position 1456. The proline at codon 486 is replaced by threonine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. The evidence for this gene-disease relationship is limited; therefore, the clinical significance of this alteration is unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.94	.;.;D;.;.;.;.
Eigen	Pathogenic	0.92
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	.;D;D;D;D;D;D
M_CAP	Uncertain	0.21	D
MetaRNN	Pathogenic	0.77	D;D;D;D;D;D;D
MetaSVM	Uncertain	0.55	D
MutationAssessor	Pathogenic	3.4	.;.;M;.;M;.;.
PrimateAI	Pathogenic	0.90	D
PROVEAN	Pathogenic	-7.6	D;D;D;D;D;.;.
REVEL	Pathogenic	0.84
Sift	Uncertain	0.0020	D;D;D;D;D;.;.
Sift4G	Uncertain	0.0020	D;D;D;D;D;D;D
Polyphen		1.0	D;P;D;D;.;D;.
Vest4		0.74
MutPred		0.56		.;.;Gain of sheet (P = 0.0344);.;Gain of sheet (P = 0.0344);.;.;
MVP		0.88
MPC		2.1
ClinPred		1.0	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.82
gMVP		0.99

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-10355147;