20-21126167-G-A

Variant names:

• chr20-21126167-G-A
• NM_018474.6:c.52G>A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_018474.6(KIZ):​c.52G>A​(p.Glu18Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000133 in 1,356,692 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000013 (0 hom.)
• Consequence: KIZ NM_018474.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.00

Genes affected

KIZ (HGNC:15865): (kizuna centrosomal protein) The protein encoded by this gene localizes to centrosomes, strengthening and stabilizing the pericentriolar region prior to spindle formation. The encoded protein usually remains with the mother centrosome after centrosomal duplication. Sevral transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30978382).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIZ	NM_018474.6	c.52G>A	p.Glu18Lys	missense_variant	Exon 1 of 13	ENST00000619189.5	NP_060944.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KIZ	ENST00000619189.5	c.52G>A	p.Glu18Lys	missense_variant	Exon 1 of 13	1	NM_018474.6	ENSP00000479542.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000133 AC: 18 AN: 1356692 Hom.: 0 Cov.: 32 AF XY: 0.0000150 AC XY: 10 AN XY: 668280

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: 0.0000160

Gnomad4 OTH exome AF: 0.0000178

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Benign	22
DANN	Benign	0.89
DEOGEN2	Benign	0.030	T
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.84	T
MetaRNN	Benign	0.31	T
PrimateAI	Uncertain	0.71	T
Sift4G	Benign	0.29	T
Polyphen		0.97	D
Vest4		0.32
MVP		0.23
GERP RS		4.1
Varity_R		0.15
gMVP		0.18

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-21106808;