chr8-32615241-ACTTTTT-A

Variant names:

• chr8-32615241-ACTTTTT-A
• rs6150532
• NM_013964.5:c.451+681_451+686delTTTCTT

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BA1

The NM_013964.5(NRG1):​c.451+681_451+686delTTTCTT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.129 in 152,000 control chromosomes in the GnomAD database, including 2,762 homozygotes. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.13 (2762 hom., cov: 31)
• Consequence: NRG1 NM_013964.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.702
• Publications: 4 publications found

Genes affected

NRG1 (HGNC:7997): (neuregulin 1) The protein encoded by this gene is a membrane glycoprotein that mediates cell-cell signaling and plays a critical role in the growth and development of multiple organ systems. An extraordinary variety of different isoforms are produced from this gene through alternative promoter usage and splicing. These isoforms are expressed in a tissue-specific manner and differ significantly in their structure, and are classified as types I, II, III, IV, V and VI. Dysregulation of this gene has been linked to diseases such as cancer, schizophrenia, and bipolar disorder (BPD). [provided by RefSeq, Apr 2016]

NRG1 Gene-Disease associations (from GenCC):

• schizophrenia 6

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -8 ACMG points.

• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.516 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_013964.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NRG1	NM_013964.5	MANE Select	c.451+681_451+686delTTTCTT		intron	N/A	NP_039258.1
	NRG1	NM_013956.5		c.451+681_451+686delTTTCTT		intron	N/A	NP_039250.2
	NRG1	NM_013957.5		c.451+681_451+686delTTTCTT		intron	N/A	NP_039251.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NRG1	ENST00000405005.8	TSL:1 MANE Select	c.451+681_451+686delTTTCTT		intron	N/A	ENSP00000384620.2
	NRG1	ENST00000287842.7	TSL:1	c.451+681_451+686delTTTCTT		intron	N/A	ENSP00000287842.4
	NRG1	ENST00000356819.7	TSL:1	c.451+681_451+686delTTTCTT		intron	N/A	ENSP00000349275.6

Frequencies

GnomAD3 genomes AF: 0.128 AC: 19497 AN: 151882 Hom.: 2755 Cov.: 31

Gnomad AFR AF: 0.261

Gnomad AMI AF: 0.00219

Gnomad AMR AF: 0.245

Gnomad ASJ AF: 0.0144

Gnomad EAS AF: 0.533

Gnomad SAS AF: 0.123

Gnomad FIN AF: 0.0322

Gnomad MID AF: 0.0190

Gnomad NFE AF: 0.0153

Gnomad OTH AF: 0.107

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.129 AC: 19545 AN: 152000 Hom.: 2762 Cov.: 31 AF XY: 0.135 AC XY: 10039 AN XY: 74330

African (AFR) AF: 0.261 AC: 10812 AN: 41442

American (AMR) AF: 0.246 AC: 3756 AN: 15242

Ashkenazi Jewish (ASJ) AF: 0.0144 AC: 50 AN: 3472

East Asian (EAS) AF: 0.533 AC: 2729 AN: 5122

South Asian (SAS) AF: 0.122 AC: 589 AN: 4826

European-Finnish (FIN) AF: 0.0322 AC: 342 AN: 10616

Middle Eastern (MID) AF: 0.0204 AC: 6 AN: 294

European-Non Finnish (NFE) AF: 0.0153 AC: 1038 AN: 67962

Other (OTH) AF: 0.105 AC: 221 AN: 2112

Alfa AF: 0.0824 Hom.: 183

Bravo AF: 0.158

Asia WGS AF: 0.257 AC: 893 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.70
Mutation Taster		=100/0	polymorphism (auto)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs6150532; hg19: chr8-32472759;