Genetic Variant NM_015443.4:c.2698G>A (chr17-46033429-C-T) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_015443.4(KANSL1):c.2698G>A(p.Gly900Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000507 in 1,614,152 control chromosomes in the GnomAD database, including 11 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 0.00062 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00050 ( 9 hom. )

Consequence

KANSL1
NM_015443.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 3.62

Publications

3 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, Labcorp Genetics (formerly Invitae), ClinGen, G2P
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: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0039648116).

BP6

Variant 17-46033429-C-T is Benign according to our data. Variant chr17-46033429-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 137970.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000617 (94/152290) while in subpopulation EAS AF = 0.0151 (78/5176). AF 95% confidence interval is 0.0124. There are 2 homozygotes in GnomAd4. There are 69 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 94 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015443.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KANSL1	NM_015443.4	MANE Select	c.2698G>A	p.Gly900Arg	missense	Exon 12 of 15	NP_056258.1	Q7Z3B3-1
KANSL1	NM_001193466.2		c.2698G>A	p.Gly900Arg	missense	Exon 12 of 15	NP_001180395.1	Q7Z3B3-1
KANSL1	NM_001379198.1		c.2698G>A	p.Gly900Arg	missense	Exon 13 of 16	NP_001366127.1	Q7Z3B3-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KANSL1	ENST00000432791.7	TSL:1 MANE Select	c.2698G>A	p.Gly900Arg	missense	Exon 12 of 15	ENSP00000387393.3	Q7Z3B3-1
KANSL1	ENST00000262419.10	TSL:1	c.2698G>A	p.Gly900Arg	missense	Exon 12 of 15	ENSP00000262419.6	Q7Z3B3-1
KANSL1	ENST00000572218.5	TSL:1	n.6915G>A		non_coding_transcript_exon	Exon 5 of 8

Frequencies

GnomAD3 genomes

AF:

0.000618

AC:

AN:

152172

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:

0.0150

Gnomad SAS

AF:

0.00228

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00112

AC:

282

AN:

251428

AF XY:

0.00121

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0129

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000495

AC:

724

AN:

1461862

Hom.:

Cov.:

AF XY:

0.000569

AC XY:

414

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0126

AC:

499

AN:

39698

South Asian (SAS)

AF:

0.00159

AC:

137

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000279

AC:

AN:

1111988

Other (OTH)

AF:

0.000927

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

Heterozygous variant carriers

118

157

196

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000617

AC:

AN:

152290

Hom.:

Cov.:

AF XY:

0.000926

AC XY:

AN XY:

74490

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41570

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.0151

AC:

AN:

5176

South Asian (SAS)

AF:

0.00228

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000761

Hom.:

Bravo

AF:

0.000771

ExAC

AF:

0.00110

AC:

133

Asia WGS

AF:

0.00779

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Koolen-de Vries syndrome (3)

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Uncertain

0.99

Eigen

Benign

0.010

Eigen_PC

Benign

0.20

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.78

MetaRNN

Benign

0.0040

MetaSVM

Benign

-1.1

PhyloP100

3.6

PrimateAI

Benign

0.46

PROVEAN

Benign

0.60

REVEL

Benign

0.078

Sift

Benign

0.48

Sift4G

Benign

0.56

Vest4

0.22

MutPred

0.33

Gain of solvent accessibility (P = 0.0037)

MVP

0.36

MPC

0.56

ClinPred

0.016

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.22

Mutation Taster

=91/9

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over