Variant chr16-57741712-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_005886.3(KATNB1):c.66C>T(p.Asn22=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00226 in 1,614,014 control chromosomes in the GnomAD database, including 64 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.012 ( 38 hom., cov: 34)

Exomes 𝑓: 0.0012 ( 26 hom. )

Consequence

KATNB1
NM_005886.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.00700

Variant links:

Genes affected

KATNB1 (HGNC:6217): (katanin regulatory subunit B1) Microtubules, polymers of alpha and beta tubulin subunits, form the mitotic spindle of a dividing cell and help to organize membranous organelles during interphase. Katanin is a heterodimer that consists of a 60 kDa ATPase (p60 subunit A 1) and an 80 kDa accessory protein (p80 subunit B 1). The p60 subunit acts to sever and disassemble microtubules, while the p80 subunit targets the enzyme to the centrosome. Katanin is a member of the AAA family of ATPases. [provided by RefSeq, Jul 2008]

KATNB1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.31).

BP6

Variant 16-57741712-C-T is Benign according to our data. Variant chr16-57741712-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 777032.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.007 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0122 (1857/152312) while in subpopulation AFR AF= 0.0411 (1707/41552). AF 95% confidence interval is 0.0395. There are 38 homozygotes in gnomad4. There are 871 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 38 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KATNB1	NM_005886.3 linkuse as main transcript	c.66C>T	p.Asn22=	synonymous_variant	3/20	ENST00000379661.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KATNB1	ENST00000379661.8 linkuse as main transcript	c.66C>T	p.Asn22=	synonymous_variant	3/20	5	NM_005886.3	P1

Frequencies

GnomAD3 genomes

AF:

0.0122

AC:

1853

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0411

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00740

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:

0.000235

Gnomad OTH

AF:

0.0100

GnomAD3 exomes

AF:

0.00323

AC:

811

AN:

251150

Hom.:

AF XY:

0.00250

AC XY:

340

AN XY:

135772

show subpopulations

Gnomad AFR exome

AF:

0.0428

Gnomad AMR exome

AF:

0.00211

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000457

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.00131

GnomAD4 exome

AF:

0.00122

AC:

1788

AN:

1461702

Hom.:

Cov.:

AF XY:

0.00109

AC XY:

793

AN XY:

727166

show subpopulations

Gnomad4 AFR exome

AF:

0.0403

Gnomad4 AMR exome

AF:

0.00230

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000591

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000863

Gnomad4 OTH exome

AF:

0.00300

GnomAD4 genome

AF:

0.0122

AC:

1857

AN:

152312

Hom.:

Cov.:

AF XY:

0.0117

AC XY:

871

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.0411

Gnomad4 AMR

AF:

0.00739

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000235

Gnomad4 OTH

AF:

0.00994

Alfa

AF:

0.00557

Hom.:

Bravo

AF:

0.0140

Asia WGS

AF:

0.00260

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 15, 2021	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 02, 2024	- -

KATNB1-related disorder

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Oct 16, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.31

CADD

Benign

9.7

DANN

Benign

0.92

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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

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