15-89642262-C-T

Variant names:

• chr15-89642262-C-T
• rs116823950
• NM_198525.3:c.2335G>A
• KIF7 p.Glu779Lys

Variant summary

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

The NM_198525.3(KIF7):​c.2335G>A​(p.Glu779Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000683 in 1,610,384 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E779Q) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
  • Exomes 𝑓: 0.0000069 (0 hom.)
• Consequence: KIF7 NM_198525.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.05
• Publications: 4 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: Orphanet, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• neurodevelopmental disorder

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

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF7	NM_198525.3	MANE Select	c.2335G>A	p.Glu779Lys	missense	Exon 11 of 19	NP_940927.2	Q2M1P5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF7	ENST00000394412.8	TSL:5 MANE Select	c.2335G>A	p.Glu779Lys	missense	Exon 11 of 19	ENSP00000377934.3	Q2M1P5
	KIF7	ENST00000696512.1		c.2458G>A	p.Glu820Lys	missense	Exon 11 of 19	ENSP00000512678.1	A0A8Q3SIQ8
	KIF7	ENST00000946200.1		c.2347G>A	p.Glu783Lys	missense	Exon 11 of 19	ENSP00000616259.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152172 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

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

GnomAD2 exomes AF: 0.0000122 AC: 3 AN: 245690 AF XY: 0.0000150

Gnomad AFR exome AF: 0.0000636

Gnomad AMR exome AF: 0.0000290

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000898

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000686 AC: 10 AN: 1458094 Hom.: 0 Cov.: 32 AF XY: 0.00000551 AC XY: 4 AN XY: 725556

African (AFR) AF: 0.000179 AC: 6 AN: 33446

American (AMR) AF: 0.00 AC: 0 AN: 44704

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26110

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86188

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50768

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5196

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1111722

Other (OTH) AF: 0.00 AC: 0 AN: 60268

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152290 Hom.: 0 Cov.: 31 AF XY: 0.0000134 AC XY: 1 AN XY: 74466

African (AFR) AF: 0.00 AC: 0 AN: 41576

American (AMR) AF: 0.0000653 AC: 1 AN: 15304

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5150

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Acrocallosal syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.31
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.14	T
Eigen	Uncertain	0.25
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Benign	0.81	T
M_CAP	Benign	0.051	D
MetaRNN	Uncertain	0.53	D
MetaSVM	Benign	-0.88	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		4.1
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-2.2	N
REVEL	Benign	0.19
Sift	Benign	0.14	T
Sift4G	Benign	0.46	T
Varity_R		0.30
gMVP		0.25
Mutation Taster		=75/25	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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs116823950;

hg19: chr15-90185493;