Variant 2-240758505-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_001244008.2(KIF1A):c.2445-8C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000273 in 1,565,222 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

KIF1A
NM_001244008.2 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.00005398

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.220

Variant links:

Genes affected

KIF1A (HGNC:888): (kinesin family member 1A) The protein encoded by this gene is a member of the kinesin family and functions as an anterograde motor protein that transports membranous organelles along axonal microtubules. Mutations at this locus have been associated with spastic paraplegia-30 and hereditary sensory neuropathy IIC. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Apr 2012]

KIF1A links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

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

BP6

Variant 2-240758505-G-A is Benign according to our data. Variant chr2-240758505-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 388347.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00133 (202/152300) while in subpopulation AFR AF= 0.00431 (179/41560). AF 95% confidence interval is 0.00379. There are 0 homozygotes in gnomad4. There are 96 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KIF1A	NM_001244008.2 linkuse as main transcript	c.2445-8C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000498729.9	NP_001230937.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KIF1A	ENST00000498729.9 linkuse as main transcript	c.2445-8C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5	NM_001244008.2	ENSP00000438388		Q12756-3

Frequencies

GnomAD3 genomes

AF:

0.00132

AC:

201

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00430

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000851

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:

0.0000588

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.000425

AC:

AN:

197566

Hom.:

AF XY:

0.000376

AC XY:

AN XY:

106362

show subpopulations

Gnomad AFR exome

AF:

0.00554

Gnomad AMR exome

AF:

0.000284

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000558

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000159

AC:

225

AN:

1412922

Hom.:

Cov.:

AF XY:

0.000146

AC XY:

102

AN XY:

697424

show subpopulations

Gnomad4 AFR exome

AF:

0.00453

Gnomad4 AMR exome

AF:

0.000354

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000341

Gnomad4 OTH exome

AF:

0.000428

GnomAD4 genome

AF:

0.00133

AC:

202

AN:

152300

Hom.:

Cov.:

AF XY:

0.00129

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00431

Gnomad4 AMR

AF:

0.000850

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.000560

Hom.:

Bravo

AF:

0.00159

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Jun 30, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 04, 2016	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Neuropathy, hereditary sensory, type 2C;C5235139:Hereditary spastic paraplegia 30;C5393830:Intellectual disability, autosomal dominant 9

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 27, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

CADD

Benign

DANN

Benign

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000054

dbscSNV1_RF

Benign

0.012

SpliceAI score (max)

0.13

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