dbSNP rs1240185267: KANSL1:p.Ala440Thr (chr17-46094673-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_015443.4(KANSL1):c.1318G>A(p.Ala440Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

KANSL1
NM_015443.4 missense

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.42

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

Koolen-de Vries syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), ClinGen
Koolen-de Vries syndrome due to a point mutation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

KANSL1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2332091).

BP6

Variant 17-46094673-C-T is Benign according to our data. Variant chr17-46094673-C-T is described in ClinVar as Benign. ClinVar VariationId is 536308.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KANSL1	NM_015443.4 link	c.1318G>A	p.Ala440Thr	missense_variant	Exon 3 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.1318G>A	p.Ala440Thr	missense_variant	Exon 3 of 15	1	NM_015443.4	ENSP00000387393.3		Q7Z3B3-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251416

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727228

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112004

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Koolen-de Vries syndrome

Benign:1

Dec 27, 2017

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

0.084

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Pathogenic

1.0

Eigen

Uncertain

0.34

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.91

.;.;.;.;D;D;D;D;D;D

M_CAP

Benign

0.011

MetaRNN

Benign

0.23

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

MetaSVM

Benign

-1.1

PhyloP100

2.4

PrimateAI

Benign

0.46

PROVEAN

Benign

-1.1

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

REVEL

Benign

0.11

Sift

Benign

0.20

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

Sift4G

Benign

0.35

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

Vest4

0.40

MutPred

0.34

Gain of glycosylation at A440 (P = 0.0315);Gain of glycosylation at A440 (P = 0.0315);Gain of glycosylation at A440 (P = 0.0315);Gain of glycosylation at A440 (P = 0.0315);Gain of glycosylation at A440 (P = 0.0315);Gain of glycosylation at A440 (P = 0.0315);Gain of glycosylation at A440 (P = 0.0315);Gain of glycosylation at A440 (P = 0.0315);.;Gain of glycosylation at A440 (P = 0.0315);

MVP

0.23

MPC

0.47

ClinPred

0.52

GERP RS

4.0

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.0

gMVP

0.15

Mutation Taster

=284/16

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over