10-89709940-C-T

Variant summary

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

The NM_001284259.2(KIF20B):​c.365C>T​(p.Ala122Val) variant causes a missense change. The variant allele was found at a frequency of 0.000014 in 1,429,392 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000014 ( 1 hom. )

Consequence

KIF20B
NM_001284259.2 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.33
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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
KIF20BNM_001284259.2 linkuse as main transcriptc.365C>T p.Ala122Val missense_variant 5/33 ENST00000371728.8 NP_001271188.1 Q96Q89-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KIF20BENST00000371728.8 linkuse as main transcriptc.365C>T p.Ala122Val missense_variant 5/331 NM_001284259.2 ENSP00000360793.3 Q96Q89-1
KIF20BENST00000260753.8 linkuse as main transcriptc.365C>T p.Ala122Val missense_variant 5/331 ENSP00000260753.4 Q96Q89-3
KIF20BENST00000447580.1 linkuse as main transcriptc.365C>T p.Ala122Val missense_variant 5/65 ENSP00000390946.1 A0A0A0MSJ5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.0000140
AC:
20
AN:
1429392
Hom.:
1
Cov.:
30
AF XY:
0.0000183
AC XY:
13
AN XY:
710362
show subpopulations
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:
0.0000182
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 31, 2023The c.365C>T (p.A122V) alteration is located in exon 5 (coding exon 4) of the KIF20B gene. This alteration results from a C to T substitution at nucleotide position 365, causing the alanine (A) at amino acid position 122 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.061
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.14
.;T;T
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.24
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.95
D;D;D
M_CAP
Benign
0.059
D
MetaRNN
Benign
0.19
T;T;T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
0.73
N;N;.
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.1
N;N;N
REVEL
Benign
0.13
Sift
Uncertain
0.0070
D;D;D
Sift4G
Uncertain
0.0070
D;D;T
Polyphen
0.016
B;B;.
Vest4
0.31
MutPred
0.41
Loss of ubiquitination at K126 (P = 0.065);Loss of ubiquitination at K126 (P = 0.065);Loss of ubiquitination at K126 (P = 0.065);
MVP
0.49
MPC
0.024
ClinPred
0.59
D
GERP RS
1.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.053
gMVP
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.28
Position offset: 26

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: chr10-91469697; API