17-4999978-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_006612.6(KIF1C):​c.-28+8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000271 in 469,290 control chromosomes in the GnomAD database, including 2 homozygotes. 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 0.00026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00028 ( 2 hom. )

Consequence

KIF1C
NM_006612.6 splice_region, intron

Scores

2
Splicing: ADA: 0.0001321
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.709
Variant links:
Genes affected
KIF1C (HGNC:6317): (kinesin family member 1C) The protein encoded by this gene is a member of the kinesin-like protein family. The family members are microtubule-dependent molecular motors that transport organelles within cells and move chromosomes during cell division. Mutations in this gene are a cause of spastic ataxia 2, autosomal recessive. [provided by RefSeq, May 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
Variant 17-4999978-G-A is Benign according to our data. Variant chr17-4999978-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 515316.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr17-4999978-G-A is described in Lovd as [Likely_benign].
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KIF1CNM_006612.6 linkuse as main transcriptc.-28+8G>A splice_region_variant, intron_variant ENST00000320785.10
KIF1CXM_005256424.3 linkuse as main transcriptc.-28+8G>A splice_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KIF1CENST00000320785.10 linkuse as main transcriptc.-28+8G>A splice_region_variant, intron_variant 1 NM_006612.6 P1
KIF1CENST00000574165.1 linkuse as main transcriptc.-28+8G>A splice_region_variant, intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000256
AC:
39
AN:
152250
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000514
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000278
AC:
88
AN:
316922
Hom.:
2
Cov.:
0
AF XY:
0.000264
AC XY:
44
AN XY:
166860
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000216
Gnomad4 NFE exome
AF:
0.000424
Gnomad4 OTH exome
AF:
0.000219
GnomAD4 genome
AF:
0.000256
AC:
39
AN:
152368
Hom.:
0
Cov.:
33
AF XY:
0.000242
AC XY:
18
AN XY:
74514
show subpopulations
Gnomad4 AFR
AF:
0.0000721
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000514
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000159
Hom.:
0
Bravo
AF:
0.000208

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxFeb 06, 2018This 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.62
CADD
Benign
11
DANN
Benign
0.78
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00013
dbscSNV1_RF
Benign
0.0020
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs531544601; hg19: chr17-4903273; API