rs11688298

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001244008.2(KIF1A):​c.1949+22A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.557 in 1,602,658 control chromosomes in the GnomAD database, including 251,646 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.59 ( 26823 hom., cov: 35)
Exomes 𝑓: 0.55 ( 224823 hom. )

Consequence

KIF1A
NM_001244008.2 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.212

Publications

7 publications found
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 Gene-Disease associations (from GenCC):
  • intellectual disability, autosomal dominant 9
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • syndromic intellectual disability
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • neuropathy, hereditary sensory, type 2C
    Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • hereditary spastic paraplegia 30
    Inheritance: AR, AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
  • autosomal dominant non-syndromic intellectual disability
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • PEHO syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary sensory and autonomic neuropathy type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
This position, referring to a specific DNA site, is a probable branch point but is likely benign (scored 0 / 10, using the threshold of <=3). The score ranges from 0 to 10, with values ≤3 considered benign and >5 classified as pathogenic. Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
Variant 2-240763144-T-A is Benign according to our data. Variant chr2-240763144-T-A is described in ClinVar as [Benign]. Clinvar id is 671033.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.684 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KIF1ANM_001244008.2 linkc.1949+22A>T intron_variant Intron 21 of 48 ENST00000498729.9 NP_001230937.1 Q12756-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KIF1AENST00000498729.9 linkc.1949+22A>T intron_variant Intron 21 of 48 5 NM_001244008.2 ENSP00000438388.1 Q12756-3

Frequencies

GnomAD3 genomes
AF:
0.588
AC:
89427
AN:
152056
Hom.:
26804
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.691
Gnomad AMI
AF:
0.677
Gnomad AMR
AF:
0.514
Gnomad ASJ
AF:
0.608
Gnomad EAS
AF:
0.680
Gnomad SAS
AF:
0.420
Gnomad FIN
AF:
0.508
Gnomad MID
AF:
0.601
Gnomad NFE
AF:
0.558
Gnomad OTH
AF:
0.587
GnomAD2 exomes
AF:
0.531
AC:
125788
AN:
236736
AF XY:
0.526
show subpopulations
Gnomad AFR exome
AF:
0.688
Gnomad AMR exome
AF:
0.397
Gnomad ASJ exome
AF:
0.596
Gnomad EAS exome
AF:
0.664
Gnomad FIN exome
AF:
0.511
Gnomad NFE exome
AF:
0.561
Gnomad OTH exome
AF:
0.566
GnomAD4 exome
AF:
0.553
AC:
802423
AN:
1450484
Hom.:
224823
Cov.:
40
AF XY:
0.548
AC XY:
395186
AN XY:
721182
show subpopulations
African (AFR)
AF:
0.702
AC:
23435
AN:
33376
American (AMR)
AF:
0.410
AC:
18138
AN:
44220
Ashkenazi Jewish (ASJ)
AF:
0.599
AC:
15552
AN:
25970
East Asian (EAS)
AF:
0.668
AC:
26396
AN:
39494
South Asian (SAS)
AF:
0.404
AC:
34583
AN:
85538
European-Finnish (FIN)
AF:
0.523
AC:
24808
AN:
47446
Middle Eastern (MID)
AF:
0.549
AC:
3104
AN:
5656
European-Non Finnish (NFE)
AF:
0.562
AC:
622632
AN:
1108730
Other (OTH)
AF:
0.562
AC:
33775
AN:
60054
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
19537
39073
58610
78146
97683
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
17424
34848
52272
69696
87120
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.588
AC:
89479
AN:
152174
Hom.:
26823
Cov.:
35
AF XY:
0.582
AC XY:
43327
AN XY:
74384
show subpopulations
African (AFR)
AF:
0.690
AC:
28669
AN:
41528
American (AMR)
AF:
0.514
AC:
7861
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.608
AC:
2108
AN:
3468
East Asian (EAS)
AF:
0.680
AC:
3512
AN:
5166
South Asian (SAS)
AF:
0.420
AC:
2031
AN:
4830
European-Finnish (FIN)
AF:
0.508
AC:
5381
AN:
10596
Middle Eastern (MID)
AF:
0.595
AC:
175
AN:
294
European-Non Finnish (NFE)
AF:
0.558
AC:
37895
AN:
67964
Other (OTH)
AF:
0.581
AC:
1230
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
1974
3948
5923
7897
9871
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
748
1496
2244
2992
3740
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.568
Hom.:
4605
Bravo
AF:
0.594
Asia WGS
AF:
0.536
AC:
1865
AN:
3476

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Jun 14, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
0.88
DANN
Benign
0.68
PhyloP100
-0.21
BranchPoint Hunter
0.0
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs11688298; hg19: chr2-241702561; COSMIC: COSV57481653; API