rs758361736

Variant names:

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_198525.3(KIF7):c.434A>C(p.Tyr145Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000135 in 1,551,662 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

KIF7
NM_198525.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 6.16

Variant links:

Genes affected

KIF7 (HGNC:30497): (kinesin family member 7) This gene encodes a cilia-associated protein belonging to the kinesin family. This protein plays a role in the sonic hedgehog (SHH) signaling pathway through the regulation of GLI transcription factors. It functions as a negative regulator of the SHH pathway by preventing inappropriate activation of GLI2 in the absence of ligand, and as a positive regulator by preventing the processing of GLI3 into its repressor form. Mutations in this gene have been associated with various ciliopathies. [provided by RefSeq, Oct 2011]

KIF7 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.951

PP5

Variant 15-89649836-T-G is Pathogenic according to our data. Variant chr15-89649836-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 374124.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Pathogenic=1, Likely_pathogenic=2}. Variant chr15-89649836-T-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIF7	NM_198525.3 link	c.434A>C	p.Tyr145Ser	missense_variant	Exon 3 of 19	ENST00000394412.8	NP_940927.2	Q2M1P5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KIF7	ENST00000394412.8 link	c.434A>C	p.Tyr145Ser	missense_variant	Exon 3 of 19	5	NM_198525.3	ENSP00000377934.3	Q2M1P5
KIF7	ENST00000445906.1 link	n.*93A>C		non_coding_transcript_exon_variant	Exon 3 of 5	1		ENSP00000395906.1	F8WD21
KIF7	ENST00000445906.1 link	n.*93A>C		3_prime_UTR_variant	Exon 3 of 5	1		ENSP00000395906.1	F8WD21
KIF7	ENST00000696512.1 link	c.557A>C	p.Tyr186Ser	missense_variant	Exon 3 of 19			ENSP00000512678.1	A0A8Q3SIQ8

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000128

AC:

AN:

156816

Hom.:

AF XY:

0.0000241

AC XY:

AN XY:

83074

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000329

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000136

AC:

AN:

1399428

Hom.:

Cov.:

AF XY:

0.0000159

AC XY:

AN XY:

690224

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000176

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000383

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:3Uncertain:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Acrocallosal syndrome

Pathogenic:1Uncertain:1

Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces tyrosine, which is neutral and polar, with serine, which is neutral and polar, at codon 145 of the KIF7 protein (p.Tyr145Ser). This variant is present in population databases (rs758361736, gnomAD 0.003%). This missense change has been observed in individual(s) with clinical features of acrocallosal syndrome (PMID: 29286531). ClinVar contains an entry for this variant (Variation ID: 374124). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt KIF7 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Cerebellar ataxia;C0026838:Spasticity;C0028738:Nystagmus;C0038379:Strabismus;C0431904:Postaxial hand polydactyly;C2112129:Postaxial foot polydactyly;C3278923:Ventriculomegaly

Pathogenic:1

Nov 29, 2014

Centre for Mendelian Genomics, University Medical Centre Ljubljana

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Male infertility due to gonadal dysgenesis or sperm disorder

Pathogenic:1

Dec 01, 2023

Laan Lab, Human Genetics Research Group, University of Tartu

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

In addition, the same case carried two additional variants: SOS2 c.26A>G p.E9G and CHEK1 c.1036C>T p.Q346Ter, indicating an oligogenic effect. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.85

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.12

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.86

Eigen

Uncertain

0.46

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.87

M_CAP

Pathogenic

0.45

MetaRNN

Pathogenic

0.95

MetaSVM

Uncertain

0.081

MutationAssessor

Pathogenic

3.0

PrimateAI

Uncertain

0.79

PROVEAN

Pathogenic

-8.3

REVEL

Pathogenic

0.74

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

0.92

Vest4

0.87

MutPred

0.81

Gain of disorder (P = 0.0315);

MVP

0.87

MPC

0.054

ClinPred

0.98

GERP RS

5.0

Varity_R

0.98

gMVP

0.90

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over