6-154094299-G-A

Variant names:

• chr6-154094299-G-A
• rs660756
• ENST00000522739.5:n.*45G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000522739.5(OPRM1):​n.*45G>A variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: OPRM1 ENST00000522739.5 non_coding_transcript_exon
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.183
• Publications: 17 publications found

Genes affected

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

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.36).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000522739.5. 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
	OPRM1	NM_000914.5	MANE Select	c.1164+2827G>A		intron	N/A	NP_000905.3
	OPRM1	NR_104348.1		n.1388G>A		non_coding_transcript_exon	Exon 4 of 5
	OPRM1	NR_104349.1		n.1388G>A		non_coding_transcript_exon	Exon 4 of 5

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OPRM1	ENST00000522739.5	TSL:1	n.*45G>A		non_coding_transcript_exon	Exon 4 of 5	ENSP00000428018.1
	OPRM1	ENST00000522739.5	TSL:1	n.*45G>A		3_prime_UTR	Exon 4 of 5	ENSP00000428018.1
	OPRM1	ENST00000330432.12	TSL:1 MANE Select	c.1164+2827G>A		intron	N/A	ENSP00000328264.7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 888658 Hom.: 0 Cov.: 12 AF XY: 0.00 AC XY: 0 AN XY: 447006

African (AFR) AF: 0.00 AC: 0 AN: 19458

American (AMR) AF: 0.00 AC: 0 AN: 27976

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 14442

East Asian (EAS) AF: 0.00 AC: 0 AN: 11698

South Asian (SAS) AF: 0.00 AC: 0 AN: 71282

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 12558

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3926

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 694016

Other (OTH) AF: 0.00 AC: 0 AN: 33302

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 41725

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.36
CADD	Benign	11
DANN	Benign	0.88
PhyloP100		0.18

Splicing

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

Other links and lift over

dbSNP: rs660756; hg19: chr6-154415434;