rs1347922421

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001244008.2(KIF1A):​c.3747C>T​(p.Gly1249=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000209 in 1,432,008 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

KIF1A
NM_001244008.2 splice_region, synonymous

Scores

2
Splicing: ADA: 0.009878
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0490
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KIF1ANM_001244008.2 linkuse as main transcriptc.3747C>T p.Gly1249= splice_region_variant, synonymous_variant 35/49 ENST00000498729.9 NP_001230937.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KIF1AENST00000498729.9 linkuse as main transcriptc.3747C>T p.Gly1249= splice_region_variant, synonymous_variant 35/495 NM_001244008.2 ENSP00000438388 Q12756-3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000209
AC:
3
AN:
1432008
Hom.:
0
Cov.:
31
AF XY:
0.00000141
AC XY:
1
AN XY:
710342
show subpopulations
Gnomad4 AFR exome
AF:
0.0000304
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:
0.00
Gnomad4 NFE exome
AF:
0.00000182
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
23
DANN
Benign
0.87

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0099
dbscSNV1_RF
Benign
0.40
SpliceAI score (max)
0.97
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.97
Position offset: 2
DS_DL_spliceai
0.92
Position offset: -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: rs1347922421; hg19: chr2-241680688; COSMIC: COSV57495206; COSMIC: COSV57495206; API