6-32203298-A-G

Position:

• chr6-32203298-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_004557.4(NOTCH4):​c.3231+472T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.187 in 155,664 control chromosomes in the GnomAD database, including 2,886 homozygotes. 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: 𝑓 0.19 (2812 hom., cov: 32)
  • Exomes 𝑓: 0.16 (74 hom.)
• Consequence: NOTCH4 NM_004557.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.840

Genes affected

NOTCH4 (HGNC:7884): (notch receptor 4) This gene encodes a member of the NOTCH family of proteins. Members of this Type I transmembrane protein family share structural characteristics including an extracellular domain consisting of multiple epidermal growth factor-like (EGF) repeats, and an intracellular domain consisting of multiple different domain types. Notch signaling is an evolutionarily conserved intercellular signaling pathway that regulates interactions between physically adjacent cells through binding of Notch family receptors to their cognate ligands. The encoded preproprotein is proteolytically processed in the trans-Golgi network to generate two polypeptide chains that heterodimerize to form the mature cell-surface receptor. This receptor may play a role in vascular, renal and hepatic development. Mutations in this gene may be associated with schizophrenia. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.24 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NOTCH4	NM_004557.4	c.3231+472T>C		intron_variant		ENST00000375023.3
NOTCH4	NR_134949.2	n.3472+472T>C		intron_variant, non_coding_transcript_variant
NOTCH4	NR_134950.2	n.3370+472T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOTCH4	ENST00000375023.3	c.3231+472T>C		intron_variant		1	NM_004557.4	P1
NOTCH4	ENST00000474612.1	n.619T>C		non_coding_transcript_exon_variant	2/10	5

Frequencies

GnomAD3 genomes AF: 0.188 AC: 28597 AN: 152094 Hom.: 2816 Cov.: 32

Gnomad AFR AF: 0.178

Gnomad AMI AF: 0.253

Gnomad AMR AF: 0.134

Gnomad ASJ AF: 0.182

Gnomad EAS AF: 0.183

Gnomad SAS AF: 0.253

Gnomad FIN AF: 0.160

Gnomad MID AF: 0.149

Gnomad NFE AF: 0.206

Gnomad OTH AF: 0.178

GnomAD4 exome AF: 0.157 AC: 543 AN: 3452 Hom.: 74 Cov.: 0 AF XY: 0.166 AC XY: 299 AN XY: 1802

Gnomad4 AFR exome AF: 0.191

Gnomad4 AMR exome AF: 0.0658

Gnomad4 ASJ exome AF: 0.155

Gnomad4 EAS exome AF: 0.158

Gnomad4 SAS exome AF: 0.174

Gnomad4 FIN exome AF: 0.131

Gnomad4 NFE exome AF: 0.162

Gnomad4 OTH exome AF: 0.156

GnomAD4 genome AF: 0.188 AC: 28592 AN: 152212 Hom.: 2812 Cov.: 32 AF XY: 0.186 AC XY: 13819 AN XY: 74408

Gnomad4 AFR AF: 0.178

Gnomad4 AMR AF: 0.134

Gnomad4 ASJ AF: 0.182

Gnomad4 EAS AF: 0.183

Gnomad4 SAS AF: 0.252

Gnomad4 FIN AF: 0.160

Gnomad4 NFE AF: 0.206

Gnomad4 OTH AF: 0.176

Alfa AF: 0.199 Hom.: 4061

Bravo AF: 0.185

Asia WGS AF: 0.173 AC: 603 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	6.2
DANN	Benign	0.85

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: rs3132935; hg19: chr6-32171075;