Variant 1-200974831-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001252102.2(KIF21B):c.4697C>T(p.Ala1566Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,614,104 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

KIF21B
NM_001252102.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.72

Variant links:

Genes affected

KIF21B (HGNC:29442): (kinesin family member 21B) This gene encodes a member of the kinesin superfamily. Kinesins are ATP-dependent microtubule-based motor proteins that are involved in the intracellular transport of membranous organelles. Single nucleotide polymorphisms in this gene are associated with inflammatory bowel disease and multiple sclerosis. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

KIF21B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KIF21B	NM_001252102.2 linkuse as main transcript	c.4697C>T	p.Ala1566Val	missense_variant	34/35	ENST00000461742.7	NP_001239031.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KIF21B	ENST00000461742.7 linkuse as main transcript	c.4697C>T	p.Ala1566Val	missense_variant	34/35	1	NM_001252102.2	ENSP00000433808	P3	O75037-4
KIF21B	ENST00000422435.2 linkuse as main transcript	c.4697C>T	p.Ala1566Val	missense_variant	34/35	1		ENSP00000411831		O75037-1
KIF21B	ENST00000332129.6 linkuse as main transcript	c.4658C>T	p.Ala1553Val	missense_variant	33/34	1		ENSP00000328494		O75037-2
KIF21B	ENST00000360529.9 linkuse as main transcript	c.4658C>T	p.Ala1553Val	missense_variant	33/34	1		ENSP00000353724	A2	O75037-3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461874

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74372

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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 submitter

clinical testing

Ambry Genetics

Dec 17, 2023

The c.4658C>T (p.A1553V) alteration is located in exon 33 (coding exon 33) of the KIF21B gene. This alteration results from a C to T substitution at nucleotide position 4658, causing the alanine (A) at amino acid position 1553 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

0.32

BayesDel_addAF

Benign

-0.025

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

.;.;.;T

Eigen

Benign

0.021

Eigen_PC

Benign

-0.036

FATHMM_MKL

Uncertain

0.76

LIST_S2

Pathogenic

0.98

D;D;D;D

M_CAP

Benign

0.057

MetaRNN

Uncertain

0.48

T;T;T;T

MetaSVM

Benign

-0.80

MutationAssessor

Benign

1.9

.;L;.;L

MutationTaster

Benign

0.87

N;N;N;N

PrimateAI

Uncertain

0.60

PROVEAN

Uncertain

-2.7

D;D;D;D

REVEL

Benign

0.20

Sift

Uncertain

0.0030

D;D;D;D

Sift4G

Uncertain

0.014

D;D;D;D

Polyphen

0.90

P;.;.;P

Vest4

0.48

MutPred

0.69

.;Gain of sheet (P = 0.1208);.;Gain of sheet (P = 0.1208);

MVP

0.44

MPC

0.86

ClinPred

0.94

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.20

gMVP

0.55

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over