10-89751702-A-G

Position:

• chr10-89751702-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001284259.2(KIF20B):​c.4222+231A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.309 in 151,736 control chromosomes in the GnomAD database, including 8,128 homozygotes. 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: 𝑓 0.31 (8128 hom., cov: 32)
• Consequence: KIF20B NM_001284259.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.640

Genes affected

KIF20B (HGNC:7212): (kinesin family member 20B) Enables several functions, including WW domain binding activity; plus-end-directed microtubule motor activity; and protein homodimerization activity. Involved in positive regulation of cell population proliferation and positive regulation of cytokinesis. Located in several cellular components, including microtubule cytoskeleton; midbody; and nuclear lumen. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.456 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KIF20B	NM_001284259.2	c.4222+231A>G		intron_variant		ENST00000371728.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KIF20B	ENST00000371728.8	c.4222+231A>G		intron_variant		1	NM_001284259.2	A2
KIF20B	ENST00000260753.8	c.4102+231A>G		intron_variant		1		P4
KIF20B	ENST00000478929.1	n.2768+231A>G		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.309 AC: 46786 AN: 151618 Hom.: 8104 Cov.: 32

Gnomad AFR AF: 0.461

Gnomad AMI AF: 0.162

Gnomad AMR AF: 0.259

Gnomad ASJ AF: 0.307

Gnomad EAS AF: 0.304

Gnomad SAS AF: 0.448

Gnomad FIN AF: 0.244

Gnomad MID AF: 0.244

Gnomad NFE AF: 0.231

Gnomad OTH AF: 0.261

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.309 AC: 46841 AN: 151736 Hom.: 8128 Cov.: 32 AF XY: 0.311 AC XY: 23056 AN XY: 74158

Gnomad4 AFR AF: 0.461

Gnomad4 AMR AF: 0.259

Gnomad4 ASJ AF: 0.307

Gnomad4 EAS AF: 0.304

Gnomad4 SAS AF: 0.448

Gnomad4 FIN AF: 0.244

Gnomad4 NFE AF: 0.231

Gnomad4 OTH AF: 0.270

Alfa AF: 0.281 Hom.: 989

Bravo AF: 0.309

Asia WGS AF: 0.408 AC: 1418 AN: 3474

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	2.5
DANN	Benign	0.67

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: rs2077946; hg19: chr10-91511459;