Variant 12-39294353-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001173464.2(KIF21A):c.*71C>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000366 in 1,182,462 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

KIF21A
NM_001173464.2 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.05

Variant links:

Genes affected

KIF21A (HGNC:19349): (kinesin family member 21A) This gene encodes a member of the KIF4 subfamily of kinesin-like motor proteins. The encoded protein is characterized by an N-terminal motor domain a coiled-coil stalk domain and a C-terminal WD-40 repeat domain. This protein may be involved in microtubule dependent transport. Mutations in this gene are the cause of congenital fibrosis of extraocular muscles-1. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Mar 2010]

KIF21A links:

KIF21A (HGNC:):

KIF21A links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.86).

BP6

Variant 12-39294353-G-C is Benign according to our data. Variant chr12-39294353-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 880993.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 261 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KIF21A	NM_001173464.2 linkuse as main transcript	c.*71C>G		3_prime_UTR_variant	38/38	ENST00000361418.10	NP_001166935.1	Q7Z4S6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KIF21A	ENST00000361418 linkuse as main transcript	c.*71C>G		3_prime_UTR_variant	38/38	1	NM_001173464.2	ENSP00000354878.5		Q7Z4S6-1

Frequencies

GnomAD3 genomes

AF:

0.00171

AC:

260

AN:

152082

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00556

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00164

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:

0.0000441

Gnomad OTH

AF:

0.000956

GnomAD4 exome

AF:

0.000167

AC:

172

AN:

1030260

Hom.:

Cov.:

AF XY:

0.000120

AC XY:

AN XY:

531304

show subpopulations

Gnomad4 AFR exome

AF:

0.00555

Gnomad4 AMR exome

AF:

0.000480

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:

0.00000278

Gnomad4 OTH exome

AF:

0.000152

GnomAD4 genome

AF:

0.00171

AC:

261

AN:

152202

Hom.:

Cov.:

AF XY:

0.00183

AC XY:

136

AN XY:

74412

show subpopulations

Gnomad4 AFR

AF:

0.00556

Gnomad4 AMR

AF:

0.00163

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.00120

Hom.:

Bravo

AF:

0.00178

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Congenital fibrosis of extraocular muscles type 1

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.86

CADD

Benign

2.2

DANN

Benign

0.54

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Splicing

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