rs549560429

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP6

The NM_001244008.2(KIF1A):​c.5063C>T​(p.Pro1688Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,611,238 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1688R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

KIF1A
NM_001244008.2 missense

Scores

4
9
6

Clinical Significance

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

Conservation

PhyloP100: 7.69

Publications

4 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: Likely_benign. The variant received -1 ACMG points.

BP6
Variant 2-240719157-G-A is Benign according to our data. Variant chr2-240719157-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 565660.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KIF1ANM_001244008.2 linkc.5063C>T p.Pro1688Leu missense_variant Exon 47 of 49 ENST00000498729.9 NP_001230937.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KIF1AENST00000498729.9 linkc.5063C>T p.Pro1688Leu missense_variant Exon 47 of 49 5 NM_001244008.2 ENSP00000438388.1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152194
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000284
AC:
7
AN:
246324
AF XY:
0.0000448
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000294
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000169
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000180
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000281
AC:
41
AN:
1458926
Hom.:
0
Cov.:
31
AF XY:
0.0000289
AC XY:
21
AN XY:
725660
show subpopulations
African (AFR)
AF:
0.0000599
AC:
2
AN:
33388
American (AMR)
AF:
0.0000225
AC:
1
AN:
44388
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26072
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39626
South Asian (SAS)
AF:
0.0000233
AC:
2
AN:
86010
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52256
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.0000288
AC:
32
AN:
1111146
Other (OTH)
AF:
0.0000498
AC:
3
AN:
60282
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000525
AC:
8
AN:
152312
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41556
American (AMR)
AF:
0.00
AC:
0
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.531
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000868
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000330
AC:
4

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Jul 24, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.5063C>T (p.P1688L) alteration is located in exon 47 (coding exon 46) of the KIF1A gene. This alteration results from a C to T substitution at nucleotide position 5063, causing the proline (P) at amino acid position 1688 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Hereditary spastic paraplegia Uncertain:1
Feb 08, 2017
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Jul 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

KIF1A: PM2, PP2 -

Neuropathy, hereditary sensory, type 2C;C5235139:Hereditary spastic paraplegia 30;C5393830:Intellectual disability, autosomal dominant 9 Benign:1
Oct 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.68
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.73
D;.;.;.;.;.;.;D;.;.;.;.;.;.
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Pathogenic
0.98
.;D;D;D;D;D;.;D;D;D;D;D;D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Uncertain
0.70
D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.7
M;.;.;.;.;.;.;M;.;.;.;.;.;.
PhyloP100
7.7
PrimateAI
Pathogenic
0.89
D
PROVEAN
Pathogenic
-6.4
.;D;.;.;.;.;.;.;.;.;.;.;.;.
REVEL
Uncertain
0.41
Sift
Benign
0.038
.;D;.;.;.;.;.;.;.;.;.;.;.;.
Sift4G
Benign
0.087
.;T;.;.;.;.;.;.;.;.;.;.;.;.
Polyphen
1.0
D;.;.;.;.;.;.;D;.;.;.;.;.;.
Vest4
0.83
MutPred
0.48
Gain of MoRF binding (P = 0.0616);.;.;.;.;.;.;Gain of MoRF binding (P = 0.0616);.;.;.;.;.;.;
MVP
0.53
MPC
1.3
ClinPred
0.80
D
GERP RS
4.1
Varity_R
0.32
gMVP
0.40
Mutation Taster
=29/71
disease causing

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: rs549560429; hg19: chr2-241658574; COSMIC: COSV57490374; COSMIC: COSV57490374; API