rs9322451

chr6-154201527-G-Achr6-154201527-G-Cchr6-154201527-G-T

Variant summary

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

The NM_001130700.2(IPCEF1):c.538-1487C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.232 in 152,076 control chromosomes in the GnomAD database, including 4,803 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 (4803 hom., cov: 32)
• Consequence: IPCEF1 NM_001130700.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.149

Genes affected

IPCEF1 (HGNC:21204): (interaction protein for cytohesin exchange factors 1) Predicted to enable peroxidase activity. Predicted to be involved in response to oxidative stress. Predicted to be located in cytosol and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

OPRM1 (HGNC:8156): (opioid receptor mu 1) This gene encodes one of at least three opioid receptors in humans; the mu opioid receptor (MOR). The MOR is the principal target of endogenous opioid peptides and opioid analgesic agents such as beta-endorphin and enkephalins. The MOR also has an important role in dependence to other drugs of abuse, such as nicotine, cocaine, and alcohol via its modulation of the dopamine system. The NM_001008503.2:c.118A>G allele has been associated with opioid and alcohol addiction and variations in pain sensitivity but evidence for it having a causal role is conflicting. Multiple transcript variants encoding different isoforms have been found for this gene. Though the canonical MOR belongs to the superfamily of 7-transmembrane-spanning G-protein-coupled receptors some isoforms of this gene have only 6 transmembrane domains. [provided by RefSeq, Oct 2013]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.592 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IPCEF1	NM_001130700.2	c.538-1487C>T		intron_variant		ENST00000367220.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IPCEF1	ENST00000367220.9	c.538-1487C>T		intron_variant		2	NM_001130700.2	A2

Frequencies

GnomAD3 genomes AF: 0.232 AC: 35274 AN: 151956 Hom.: 4801 Cov.: 32

Gnomad AFR AF: 0.263

Gnomad AMI AF: 0.147

Gnomad AMR AF: 0.157

Gnomad ASJ AF: 0.116

Gnomad EAS AF: 0.611

Gnomad SAS AF: 0.465

Gnomad FIN AF: 0.275

Gnomad MID AF: 0.161

Gnomad NFE AF: 0.186

Gnomad OTH AF: 0.221

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

GnomAD4 genome AF: 0.232 AC: 35293 AN: 152076 Hom.: 4803 Cov.: 32 AF XY: 0.241 AC XY: 17889 AN XY: 74340

Gnomad4 AFR AF: 0.263

Gnomad4 AMR AF: 0.157

Gnomad4 ASJ AF: 0.116

Gnomad4 EAS AF: 0.610

Gnomad4 SAS AF: 0.464

Gnomad4 FIN AF: 0.275

Gnomad4 NFE AF: 0.186

Gnomad4 OTH AF: 0.225

Alfa AF: 0.195 Hom.: 6737

Bravo AF: 0.220

Asia WGS AF: 0.474 AC: 1649 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
Cadd	Benign	1.1
Dann	Benign	0.19

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: rs9322451; hg19: chr6-154522661;