rs886039282

Positions:

• chr15-89630426-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3 PP5

The NM_198525.3(KIF7):​c.3179A>G​(p.Asn1060Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000069 in 1,450,144 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 Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: KIF7 NM_198525.3 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.88

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]

TICRR (HGNC:28704): (TOPBP1 interacting checkpoint and replication regulator) Enables chromatin binding activity. Involved in regulation of DNA-dependent DNA replication initiation. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.792
• PP5: Variant 15-89630426-T-C is Pathogenic according to our data. Variant chr15-89630426-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 264771.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KIF7	NM_198525.3	c.3179A>G	p.Asn1060Ser	missense_variant	16/19	ENST00000394412.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KIF7	ENST00000394412.8	c.3179A>G	p.Asn1060Ser	missense_variant	16/19	5	NM_198525.3	P2
TICRR	ENST00000561095.1	c.*1093T>C		3_prime_UTR_variant, NMD_transcript_variant	4/4	1
KIF7	ENST00000696512.1	c.3302A>G	p.Asn1101Ser	missense_variant	16/19			A2
KIF7	ENST00000677187.1	n.853A>G		non_coding_transcript_exon_variant	4/7

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.90e-7 AC: 1 AN: 1450144 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 720090

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: 9.04e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Multiple epiphyseal dysplasia, Al-Gazali type Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Mar 20, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_addAF	Benign	-0.015	T
BayesDel_noAF	Benign	-0.26
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.56	D
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.94	D
M_CAP	Pathogenic	0.37	D
MetaRNN	Pathogenic	0.79	D
MetaSVM	Uncertain	0.36	D
MutationAssessor	Uncertain	2.2	M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.79	T
PROVEAN	Uncertain	-4.2	D
REVEL	Uncertain	0.50
Sift	Benign	0.050	D
Sift4G	Benign	0.16	T
Polyphen		1.0	D
Vest4		0.63
MutPred		0.32		Gain of disorder (P = 0.0615);
MVP		0.92
MPC		0.14
ClinPred		0.98	D
GERP RS		5.2
Varity_R		0.41
gMVP		0.52

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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

Other links and lift over

dbSNP: rs886039282; hg19: chr15-90173657;