17-5024111-G-T

Variant names:

• chr17-5024111-G-T
• rs201800868
• NM_006612.6:c.3272G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_006612.6(KIF1C):​c.3272G>T​(p.Arg1091Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,458,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1091H) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: KIF1C NM_006612.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.40
• Publications: 2 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05214551).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF1C	NM_006612.6	MANE Select	c.3272G>T	p.Arg1091Leu	missense	Exon 23 of 23	NP_006603.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF1C	ENST00000320785.10	TSL:1 MANE Select	c.3272G>T	p.Arg1091Leu	missense	Exon 23 of 23	ENSP00000320821.5
	KIF1C	ENST00000948910.1		c.3302G>T	p.Arg1101Leu	missense	Exon 23 of 23	ENSP00000618969.1
	KIF1C	ENST00000948913.1		c.3302G>T	p.Arg1101Leu	missense	Exon 22 of 22	ENSP00000618972.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1458392 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 725430

African (AFR) AF: 0.00 AC: 0 AN: 33350

American (AMR) AF: 0.00 AC: 0 AN: 44316

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25942

East Asian (EAS) AF: 0.0000253 AC: 1 AN: 39482

South Asian (SAS) AF: 0.00 AC: 0 AN: 85934

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52920

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5756

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110468

Other (OTH) AF: 0.00 AC: 0 AN: 60224

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.45
BayesDel_addAF	Benign	-0.028	T
BayesDel_noAF	Benign	-0.28
CADD	Benign	22
DANN	Benign	0.83
DEOGEN2	Benign	0.063	T
Eigen	Benign	-0.40
Eigen_PC	Benign	-0.13
FATHMM_MKL	Benign	0.41	N
LIST_S2	Benign	0.81	T
M_CAP	Benign	0.057	D
MetaRNN	Benign	0.052	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.76	N
PhyloP100		2.4
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	0.15	N
REVEL	Benign	0.27
Sift	Benign	1.0	T
Sift4G	Benign	0.64	T
Polyphen		0.0	B
Vest4		0.25
MutPred		0.18		Loss of MoRF binding (P = 0.0239)
MVP		0.58
MPC		0.58
ClinPred		0.32	T
GERP RS		5.0
Varity_R		0.066
gMVP		0.26
Mutation Taster		=90/10	polymorphism

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

Other links and lift over

dbSNP: rs201800868; hg19: chr17-4927406;