17-5020556-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_006612.6(KIF1C):c.1815G>A(p.Leu605Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00519 in 1,614,222 control chromosomes in the GnomAD database, including 37 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0039 ( 2 hom., cov: 32)

Exomes 𝑓: 0.0053 ( 35 hom. )

Consequence

KIF1C
NM_006612.6 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.748

Publications

1 publications found

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]

KIF1C links:

KIF1C-AS1 (HGNC:40324): (KIF1C antisense RNA 1)

KIF1C-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 17-5020556-G-A is Benign according to our data. Variant chr17-5020556-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 385064.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.748 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00392 (597/152366) while in subpopulation NFE AF = 0.00594 (404/68030). AF 95% confidence interval is 0.00546. There are 2 homozygotes in GnomAd4. There are 269 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006612.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF1C	NM_006612.6	MANE Select	c.1815G>A	p.Leu605Leu	synonymous	Exon 20 of 23	NP_006603.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
KIF1C	ENST00000320785.10	TSL:1 MANE Select	c.1815G>A	p.Leu605Leu	synonymous	Exon 20 of 23	ENSP00000320821.5
KIF1C	ENST00000573815.1	TSL:5	n.357G>A		non_coding_transcript_exon	Exon 4 of 6
KIF1C-AS1	ENST00000438266.2	TSL:2	n.358+213C>T		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.00392

AC:

597

AN:

152248

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00106

Gnomad AMI

AF:

0.00329

Gnomad AMR

AF:

0.00229

Gnomad ASJ

AF:

0.0239

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00207

Gnomad FIN

AF:

0.000565

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00594

Gnomad OTH

AF:

0.00526

GnomAD2 exomes

AF:

0.00445

AC:

1119

AN:

251238

AF XY:

0.00457

show subpopulations

Gnomad AFR exome

AF:

0.00111

Gnomad AMR exome

AF:

0.00243

Gnomad ASJ exome

AF:

0.0200

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000924

Gnomad NFE exome

AF:

0.00626

Gnomad OTH exome

AF:

0.00718

GnomAD4 exome

AF:

0.00532

AC:

7778

AN:

1461856

Hom.:

Cov.:

AF XY:

0.00522

AC XY:

3798

AN XY:

727234

show subpopulations

African (AFR)

AF:

0.00116

AC:

AN:

33480

American (AMR)

AF:

0.00257

AC:

115

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.0216

AC:

565

AN:

26128

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00165

AC:

142

AN:

86258

European-Finnish (FIN)

AF:

0.000899

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.0111

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00579

AC:

6435

AN:

1111990

Other (OTH)

AF:

0.00611

AC:

369

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

466

932

1397

1863

2329

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

238

476

714

952

1190

<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:

0.00392

AC:

597

AN:

152366

Hom.:

Cov.:

AF XY:

0.00361

AC XY:

269

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.00106

AC:

AN:

41592

American (AMR)

AF:

0.00229

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.0239

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00207

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.000565

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00594

AC:

404

AN:

68030

Other (OTH)

AF:

0.00520

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

108

144

180

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00640

Hom.:

Bravo

AF:

0.00430

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00752

EpiControl

AF:

0.00705

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Sep 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

KIF1C: BP4, BP7, BS2

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

Jan 04, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Spastic ataxia 2

Benign:1

Jan 22, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Hereditary spastic paraplegia

Benign:1

Nov 12, 2021

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

4.3

(source)

DANN

Benign

0.85

PhyloP100

-0.75

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over