2-240762747-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001244008.2(KIF1A):c.2088C>G(p.Asn696Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000188 in 1,595,958 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. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. N696N) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

KIF1A
NM_001244008.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.325

Publications

1 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

KIF1A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0798375).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001244008.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
KIF1A	NM_001244008.2	MANE Select	c.2088C>G	p.Asn696Lys	missense	Exon 23 of 49	NP_001230937.1
KIF1A	NM_001379631.1		c.2163C>G	p.Asn721Lys	missense	Exon 23 of 49	NP_001366560.1
KIF1A	NM_001379642.1		c.2061C>G	p.Asn687Lys	missense	Exon 22 of 49	NP_001366571.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
KIF1A	ENST00000498729.9	TSL:5 MANE Select	c.2088C>G	p.Asn696Lys	missense	Exon 23 of 49	ENSP00000438388.1
KIF1A	ENST00000675932.2		c.2088C>G	p.Asn696Lys	missense	Exon 23 of 49	ENSP00000502786.2
KIF1A	ENST00000675314.2		c.2217C>G	p.Asn739Lys	missense	Exon 24 of 50	ENSP00000502584.2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000139

AC:

AN:

1443806

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

714320

show subpopulations

African (AFR)

AF:

0.0000603

AC:

AN:

33194

American (AMR)

AF:

0.00

AC:

AN:

44200

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25942

East Asian (EAS)

AF:

0.00

AC:

AN:

39132

South Asian (SAS)

AF:

0.00

AC:

AN:

84692

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53020

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5718

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1098412

Other (OTH)

AF:

0.00

AC:

AN:

59496

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74306

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41430

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5204

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

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:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Feb 23, 2022

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

CADD

Benign

1.5

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.22

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.49

LIST_S2

Uncertain

0.93

M_CAP

Uncertain

0.091

MetaRNN

Benign

0.080

MetaSVM

Benign

-0.93

MutationAssessor

Benign

1.4

PhyloP100

-0.33

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.7

REVEL

Benign

0.077

Sift

Benign

0.89

Sift4G

Benign

0.89

Polyphen

0.16

Vest4

0.41

MutPred

0.35

Gain of ubiquitination at N687 (P = 0.0014)

MVP

0.71

MPC

0.55

ClinPred

0.14

GERP RS

-1.6

Varity_R

0.077

gMVP

0.56

Mutation Taster

=80/20

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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