15-89633853-G-C

Variant names:

• chr15-89633853-G-C
• rs367734857
• NM_198525.3:c.2425C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_198525.3(KIF7):​c.2425C>G​(p.Arg809Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,346 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R809W) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: KIF7 NM_198525.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.09
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• acrocallosal syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
• neurodevelopmental disorder

  Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
• hydrolethalus syndrome 2

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• hydrolethalus syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• multiple epiphyseal dysplasia, Al-Gazali type

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• orofaciodigital syndrome type 6

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198525.3. 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
	KIF7	NM_198525.3	MANE Select	c.2425C>G	p.Arg809Gly	missense	Exon 12 of 19	NP_940927.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF7	ENST00000394412.8	TSL:5 MANE Select	c.2425C>G	p.Arg809Gly	missense	Exon 12 of 19	ENSP00000377934.3
	KIF7	ENST00000696512.1		c.2548C>G	p.Arg850Gly	missense	Exon 12 of 19	ENSP00000512678.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461346 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 726992

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52892

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112000

Other (OTH) AF: 0.00 AC: 0 AN: 60390

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Uncertain	0.056	T
BayesDel_noAF	Benign	-0.16
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.78	D
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.55
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.052	D
MetaRNN	Uncertain	0.63	D
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	1.4	L
PhyloP100		4.1
PrimateAI	Benign	0.47	T
PROVEAN	Pathogenic	-4.7	D
REVEL	Benign	0.15
Sift	Benign	0.12	T
Sift4G	Uncertain	0.0050	D
Polyphen		0.98	D
Vest4		0.71
MutPred		0.12		Loss of MoRF binding (P = 0.0371)
MVP		0.60
MPC		0.14
ClinPred		0.99	D
GERP RS		5.2
Varity_R		0.35
gMVP		0.13
Mutation Taster		=81/19	polymorphism

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

Other links and lift over

dbSNP: rs367734857; hg19: chr15-90177084;