Genetic Variant KANSL1:p.Lys267Arg (chr17-46171344-T-C) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_015443.4(KANSL1):c.800A>G(p.Lys267Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000427 in 1,614,148 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00077 ( 0 hom., cov: 35)

Exomes 𝑓: 0.00039 ( 3 hom. )

Consequence

KANSL1
NM_015443.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 3.26

Variant links:

Genes affected

KANSL1 (HGNC:24565): (KAT8 regulatory NSL complex subunit 1) This gene encodes a nuclear protein that is a subunit of two protein complexes involved with histone acetylation, the MLL1 complex and the NSL1 complex. The encoded protein has been implicated in a variety of cellular processes including enhancer regulation, cell proliferation, and mitosis. Mutations in this gene are associated with Koolen-de Vries Syndrome. [provided by RefSeq, May 2022]

KANSL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.005243361).

BP6

Variant 17-46171344-T-C is Benign according to our data. Variant chr17-46171344-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 205777.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000768 (117/152272) while in subpopulation NFE AF= 0.000456 (31/68036). AF 95% confidence interval is 0.000329. There are 0 homozygotes in gnomad4. There are 82 alleles in male gnomad4 subpopulation. Median coverage is 35. This position pass quality control queck.

BS2

High AC in GnomAd4 at 117 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KANSL1	NM_015443.4 link	c.800A>G	p.Lys267Arg	missense_variant	Exon 2 of 15	ENST00000432791.7	NP_056258.1	Q7Z3B3-1A0A024R9Y2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KANSL1	ENST00000432791.7 link	c.800A>G	p.Lys267Arg	missense_variant	Exon 2 of 15	1	NM_015443.4	ENSP00000387393.3		Q7Z3B3-1

Frequencies

GnomAD3 genomes

AF:

0.000769

AC:

117

AN:

152154

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:

0.00792

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000456

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000799

AC:

201

AN:

251432

Hom.:

AF XY:

0.000677

AC XY:

AN XY:

135894

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00721

Gnomad NFE exome

AF:

0.000334

Gnomad OTH exome

AF:

0.00114

GnomAD4 exome

AF:

0.000392

AC:

573

AN:

1461876

Hom.:

Cov.:

AF XY:

0.000367

AC XY:

267

AN XY:

727238

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:

0.00771

Gnomad4 NFE exome

AF:

0.000128

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.000768

AC:

117

AN:

152272

Hom.:

Cov.:

AF XY:

0.00110

AC XY:

AN XY:

74452

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:

0.00792

Gnomad4 NFE

AF:

0.000456

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.000233

Hom.:

Bravo

AF:

0.000110

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000733

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:1

Aug 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

KANSL1: BP4, BS1 -

Koolen-de Vries syndrome

Benign:1

Aug 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Uncertain

1.0

Eigen

Benign

0.11

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.72

.;.;.;.;T;T;T;T;T

M_CAP

Benign

0.0033

MetaRNN

Benign

0.0052

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.80

N;.;.;.;.;N;.;.;.

REVEL

Benign

0.037

Sift

Benign

0.21

T;.;.;.;.;T;.;.;.

Sift4G

Benign

0.23

T;T;T;.;T;T;.;.;.

Vest4

0.071

MVP

0.068

MPC

0.019

ClinPred

0.022

GERP RS

5.0

gMVP

0.12

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