chr1-62274428-C-A

Position:

• chr1-62274428-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_181712.5(KANK4):​c.676G>T​(p.Glu226*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: KANK4 NM_181712.5 stop_gained
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 0.347

Genes affected

KANK4 (HGNC:27263): (KN motif and ankyrin repeat domains 4) Predicted to be involved in negative regulation of actin filament polymerization. Located in cytosol and microtubule cytoskeleton. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KANK4	NM_181712.5	c.676G>T	p.Glu226*	stop_gained	3/10	ENST00000371153.9	NP_859063.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KANK4	ENST00000371153.9	c.676G>T	p.Glu226*	stop_gained	3/10	1	NM_181712.5	ENSP00000360195.4
KANK4	ENST00000354381.3	c.17-2839G>T		intron_variant		2		ENSP00000346352.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 67

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, no assertion criteria provided

research

Gharavi Laboratory, Columbia University

Sep 16, 2018

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.38	D
BayesDel_noAF	Pathogenic	0.31
CADD	Pathogenic	34
DANN	Uncertain	1.0
Eigen	Uncertain	0.51
Eigen_PC	Benign	0.22
FATHMM_MKL	Benign	0.41	N
Vest4		0.11
GERP RS		4.5

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

Publications

LitVar

Other links and lift over

dbSNP: rs757119605; hg19: chr1-62740100;