2-118111006-G-C

Variant names:

• chr2-118111006-G-C
• rs17047764
• NM_016133.4:c.*2684G>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_016133.4(INSIG2):​c.*2684G>C variant causes a downstream gene change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.23 in 152,126 control chromosomes in the GnomAD database, including 4,936 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 0.23 (4936 hom., cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: INSIG2 NM_016133.4 downstream_gene
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.897
• Publications: 14 publications found

Genes affected

INSIG2 (HGNC:20452): (insulin induced gene 2) The protein encoded by this gene is highly similar to the protein product encoded by gene INSIG1. Both INSIG1 protein and this protein are endoplasmic reticulum proteins that block the processing of sterol regulatory element binding proteins (SREBPs) by binding to SREBP cleavage-activating protein (SCAP), and thus prevent SCAP from escorting SREBPs to the Golgi. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.388 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016133.4. 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
	INSIG2	NM_016133.4	MANE Select	c.*2684G>C		downstream_gene	N/A	NP_057217.2
	INSIG2	NM_001321329.2		c.*2684G>C		downstream_gene	N/A	NP_001308258.1
	INSIG2	NM_001321330.2		c.*2684G>C		downstream_gene	N/A	NP_001308259.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	INSIG2	ENST00000245787.9	TSL:1 MANE Select	c.*2684G>C		downstream_gene	N/A	ENSP00000245787.4
	INSIG2	ENST00000485520.5	TSL:5	n.*9G>C		downstream_gene	N/A

Frequencies

GnomAD3 genomes AF: 0.230 AC: 34893 AN: 152008 Hom.: 4927 Cov.: 33

Gnomad AFR AF: 0.393

Gnomad AMI AF: 0.185

Gnomad AMR AF: 0.205

Gnomad ASJ AF: 0.209

Gnomad EAS AF: 0.0228

Gnomad SAS AF: 0.125

Gnomad FIN AF: 0.195

Gnomad MID AF: 0.142

Gnomad NFE AF: 0.166

Gnomad OTH AF: 0.221

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 2 Hom.: 0 Cov.: 0 AC XY: 0 AN XY: 0

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AC: 0 AN: 0

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 2

Other (OTH) AC: 0 AN: 0

GnomAD4 genome AF: 0.230 AC: 34948 AN: 152126 Hom.: 4936 Cov.: 33 AF XY: 0.228 AC XY: 16955 AN XY: 74358

African (AFR) AF: 0.393 AC: 16279 AN: 41464

American (AMR) AF: 0.206 AC: 3146 AN: 15298

Ashkenazi Jewish (ASJ) AF: 0.209 AC: 726 AN: 3468

East Asian (EAS) AF: 0.0224 AC: 116 AN: 5174

South Asian (SAS) AF: 0.125 AC: 604 AN: 4814

European-Finnish (FIN) AF: 0.195 AC: 2069 AN: 10596

Middle Eastern (MID) AF: 0.150 AC: 44 AN: 294

European-Non Finnish (NFE) AF: 0.167 AC: 11322 AN: 67994

Other (OTH) AF: 0.224 AC: 474 AN: 2114

Alfa AF: 0.213 Hom.: 491

Bravo AF: 0.240

Asia WGS AF: 0.112 AC: 392 AN: 3472

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	4.0
DANN	Benign	0.66
PhyloP100		-0.90

Splicing

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

Other links and lift over

dbSNP: rs17047764; hg19: chr2-118868582;