rs677221

Positions:

• chr10-82554641-G-C

Variant summary

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

The NM_001010848.4(NRG3):​c.954-183936G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.49 in 151,916 control chromosomes in the GnomAD database, including 21,428 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 0.49 (21428 hom., cov: 32)
• Consequence: NRG3 NM_001010848.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.143

Genes affected

NRG3 (HGNC:7999): (neuregulin 3) This gene is a member of the neuregulin gene family. This gene family encodes ligands for the transmembrane tyrosine kinase receptors ERBB3 and ERBB4 - members of the epidermal growth factor receptor family. Ligand binding activates intracellular signaling cascades and the induction of cellular responses including proliferation, migration, differentiation, and survival or apoptosis. This gene encodes neuregulin 3 (NRG3). NRG3 has been shown to activate the tyrosine phosphorylation of its cognate receptor, ERBB4, and is thought to influence neuroblast proliferation, migration and differentiation by signalling through ERBB4. NRG3 also promotes mammary differentiation during embryogenesis. Linkage studies have implicated this gene as a susceptibility locus for schizophrenia and schizoaffective disorder. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional transcript variants have been described but their biological validity has not been verified.[provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.798 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NRG3	NM_001010848.4	c.954-183936G>C		intron_variant		ENST00000372141.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NRG3	ENST00000372141.7	c.954-183936G>C		intron_variant		1	NM_001010848.4	A2

Frequencies

GnomAD3 genomes AF: 0.489 AC: 74262 AN: 151798 Hom.: 21372 Cov.: 32

Gnomad AFR AF: 0.805

Gnomad AMI AF: 0.331

Gnomad AMR AF: 0.494

Gnomad ASJ AF: 0.332

Gnomad EAS AF: 0.585

Gnomad SAS AF: 0.289

Gnomad FIN AF: 0.301

Gnomad MID AF: 0.404

Gnomad NFE AF: 0.343

Gnomad OTH AF: 0.477

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

GnomAD4 genome AF: 0.490 AC: 74376 AN: 151916 Hom.: 21428 Cov.: 32 AF XY: 0.485 AC XY: 36028 AN XY: 74210

Gnomad4 AFR AF: 0.805

Gnomad4 AMR AF: 0.495

Gnomad4 ASJ AF: 0.332

Gnomad4 EAS AF: 0.584

Gnomad4 SAS AF: 0.290

Gnomad4 FIN AF: 0.301

Gnomad4 NFE AF: 0.343

Gnomad4 OTH AF: 0.476

Alfa AF: 0.423 Hom.: 1965

Bravo AF: 0.522

Asia WGS AF: 0.475 AC: 1652 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	2.2
DANN	Benign	0.65

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: rs677221; hg19: chr10-84314397;