rs201981364

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS1

The NM_001244008.2(KIF1A):​c.3468C>T​(p.Ile1156Ile) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000648 in 1,604,400 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

KIF1A
NM_001244008.2 splice_region, synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -0.599
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]

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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=-0.51).
BP6
Variant 2-240744058-G-A is Benign according to our data. Variant chr2-240744058-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 211285.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1, Benign=1}.
BP7
Synonymous conserved (PhyloP=-0.599 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000315 (48/152328) while in subpopulation AFR AF= 0.00106 (44/41570). AF 95% confidence interval is 0.00081. There are 0 homozygotes in gnomad4. There are 24 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KIF1ANM_001244008.2 linkuse as main transcriptc.3468C>T p.Ile1156Ile splice_region_variant, synonymous_variant 33/49 ENST00000498729.9 NP_001230937.1 Q12756-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KIF1AENST00000498729.9 linkuse as main transcriptc.3468C>T p.Ile1156Ile splice_region_variant, synonymous_variant 33/495 NM_001244008.2 ENSP00000438388.1 Q12756-3

Frequencies

GnomAD3 genomes
AF:
0.000309
AC:
47
AN:
152210
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00104
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000964
AC:
24
AN:
248846
Hom.:
0
AF XY:
0.0000741
AC XY:
10
AN XY:
134990
show subpopulations
Gnomad AFR exome
AF:
0.000969
Gnomad AMR exome
AF:
0.0000870
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000111
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000497
GnomAD4 exome
AF:
0.0000386
AC:
56
AN:
1452072
Hom.:
0
Cov.:
28
AF XY:
0.0000346
AC XY:
25
AN XY:
722882
show subpopulations
Gnomad4 AFR exome
AF:
0.000691
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000505
Gnomad4 SAS exome
AF:
0.0000465
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000127
Gnomad4 OTH exome
AF:
0.000117
GnomAD4 genome
AF:
0.000315
AC:
48
AN:
152328
Hom.:
0
Cov.:
33
AF XY:
0.000322
AC XY:
24
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.00106
Gnomad4 AMR
AF:
0.000261
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000247
Hom.:
0
Bravo
AF:
0.000468

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsJan 21, 2019- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJan 15, 2021- -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoNov 04, 2014- -
Neuropathy, hereditary sensory, type 2C;C5235139:Hereditary spastic paraplegia 30;C5393830:Intellectual disability, autosomal dominant 9 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 27, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
5.7
DANN
Benign
0.83

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs201981364; hg19: chr2-241683475; API