8-32329564-C-G

Variant names:

• chr8-32329564-C-G
• rs7830691
• ENST00000520407.5:c.746-266264C>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The ENST00000520407.5(NRG1):​c.746-266264C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00233 in 151,970 control chromosomes in the GnomAD database, including 1 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 0.0023 (1 hom., cov: 31)
• Consequence: NRG1 ENST00000520407.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.375
• 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: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRG1	NM_001159999.3	c.38-266264C>G		intron_variant	Intron 1 of 12		NP_001153471.1
NRG1	NM_001159995.3	c.38-266264C>G		intron_variant	Intron 1 of 11		NP_001153467.1
NRG1	NM_001160001.3	c.38-266264C>G		intron_variant	Intron 1 of 10		NP_001153473.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRG1	ENST00000520407.5	c.746-266264C>G		intron_variant	Intron 1 of 4	1		ENSP00000434640.1
NRG1	ENST00000523534.5	c.305-266264C>G		intron_variant	Intron 1 of 12	5		ENSP00000429067.1
NRG1	ENST00000650866.1	c.38-266264C>G		intron_variant	Intron 1 of 12			ENSP00000499045.1

Frequencies

GnomAD3 genomes AF: 0.00232 AC: 353 AN: 151850 Hom.: 1 Cov.: 31

Gnomad AFR AF: 0.00801

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00118

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00191

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

GnomAD4 genome AF: 0.00233 AC: 354 AN: 151970 Hom.: 1 Cov.: 31 AF XY: 0.00217 AC XY: 161 AN XY: 74278

African (AFR) AF: 0.00801 AC: 332 AN: 41438

American (AMR) AF: 0.00118 AC: 18 AN: 15272

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5148

South Asian (SAS) AF: 0.00 AC: 0 AN: 4816

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10560

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 290

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67958

Other (OTH) AF: 0.00189 AC: 4 AN: 2112

Alfa AF: 0.00 Hom.: 1265

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	1.1
DANN	Benign	0.35
PhyloP100		-0.38

Splicing

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

Other links and lift over

dbSNP: rs7830691; hg19: chr8-32187080;