17-46029924-CT-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_015443.4(KANSL1):c.*1551del variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000188 in 148,670 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00019 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: KANSL1 NM_015443.4 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.22

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]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS2: High AC in GnomAd at 28 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KANSL1	NM_015443.4	c.*1551del		3_prime_UTR_variant	15/15	ENST00000432791.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KANSL1	ENST00000432791.7	c.*1551del		3_prime_UTR_variant	15/15	1	NM_015443.4	P4

Frequencies

GnomAD3 genomes AF: 0.000188 AC: 28 AN: 148558 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000346

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000269

Gnomad ASJ AF: 0.000585

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.000102

Gnomad MID AF: 0.00323

Gnomad NFE AF: 0.0000895

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 156 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 96

Gnomad4 AFR exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.000188 AC: 28 AN: 148670 Hom.: 0 Cov.: 32 AF XY: 0.000207 AC XY: 15 AN XY: 72540

Gnomad4 AFR AF: 0.000370

Gnomad4 AMR AF: 0.000268

Gnomad4 ASJ AF: 0.000585

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.000102

Gnomad4 NFE AF: 0.0000895

Gnomad4 OTH AF: 0.00

Bravo AF: 0.000268

Asia WGS AF: 0.00491 AC: 17 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Syndromic intellectual disability Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

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Computational scores

Source: dbNSFP v4.3

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

Other links and lift over

dbSNP: rs767830420; hg19: chr17-44107290;