17-46030734-C-A

Variant names:

• chr17-46030734-C-A
• rs7350928
• NM_015443.4:c.*742G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_015443.4(KANSL1):​c.*742G>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: KANSL1 NM_015443.4 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.217
• Publications: 36 publications found

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

ACMG classification

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 (BayesDel_noAF=-0.83).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KANSL1	NM_015443.4	MANE Select	c.*742G>T		3_prime_UTR	Exon 15 of 15	NP_056258.1	Q7Z3B3-1
	KANSL1	NM_001193466.2		c.*742G>T		3_prime_UTR	Exon 15 of 15	NP_001180395.1	Q7Z3B3-1
	KANSL1	NM_001379198.1		c.*742G>T		3_prime_UTR	Exon 16 of 16	NP_001366127.1	Q7Z3B3-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KANSL1	ENST00000432791.7	TSL:1 MANE Select	c.*742G>T		3_prime_UTR	Exon 15 of 15	ENSP00000387393.3	Q7Z3B3-1
	KANSL1	ENST00000262419.10	TSL:1	c.*742G>T		3_prime_UTR	Exon 15 of 15	ENSP00000262419.6	Q7Z3B3-1
	KANSL1	ENST00000572218.5	TSL:1	n.8277G>T		non_coding_transcript_exon	Exon 8 of 8

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 166 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 106

African (AFR) AF: 0.00 AC: 0 AN: 2

American (AMR) AF: 0.00 AC: 0 AN: 2

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AF: 0.00 AC: 0 AN: 4

South Asian (SAS) AF: 0.00 AC: 0 AN: 2

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 26

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 118

Other (OTH) AF: 0.00 AC: 0 AN: 12

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 3544

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	1.3
DANN	Benign	0.66
PhyloP100		-0.22
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs7350928; hg19: chr17-44108100;