6-154110258-C-G

Position:

• chr6-154110258-C-G

Variant summary

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

The NM_000914.5(OPRM1):​c.1165-8425C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.917 in 643,296 control chromosomes in the GnomAD database, including 271,026 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as drug response (no stars).

• Frequency:
  • Genomes: 𝑓 0.92 (63953 hom., cov: 32)
  • Exomes 𝑓: 0.92 (207073 hom.)
• Consequence: OPRM1 NM_000914.5 intron
• Clinical Significance: drug response no assertion criteria provided O:1
• Conservation: PhyloP100: 0.206

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]

OPRM1 (HGNC:):

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 (EAS) allele frequency at 95% confidence interval = 0.96 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OPRM1	NM_000914.5	c.1165-8425C>G		intron_variant		ENST00000330432.12	NP_000905.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OPRM1	ENST00000330432.12	c.1165-8425C>G		intron_variant		1	NM_000914.5	ENSP00000328264.7

Frequencies

GnomAD3 genomes AF: 0.916 AC: 139389 AN: 152114 Hom.: 63902 Cov.: 32

Gnomad AFR AF: 0.924

Gnomad AMI AF: 0.885

Gnomad AMR AF: 0.936

Gnomad ASJ AF: 0.888

Gnomad EAS AF: 0.983

Gnomad SAS AF: 0.974

Gnomad FIN AF: 0.877

Gnomad MID AF: 0.946

Gnomad NFE AF: 0.906

Gnomad OTH AF: 0.922

GnomAD4 exome AF: 0.918 AC: 450659 AN: 491064 Hom.: 207073 AF XY: 0.921 AC XY: 238373 AN XY: 258952

Gnomad4 AFR exome AF: 0.929

Gnomad4 AMR exome AF: 0.927

Gnomad4 ASJ exome AF: 0.890

Gnomad4 EAS exome AF: 0.979

Gnomad4 SAS exome AF: 0.976

Gnomad4 FIN exome AF: 0.884

Gnomad4 NFE exome AF: 0.908

Gnomad4 OTH exome AF: 0.923

GnomAD4 genome AF: 0.916 AC: 139499 AN: 152232 Hom.: 63953 Cov.: 32 AF XY: 0.917 AC XY: 68247 AN XY: 74432

Gnomad4 AFR AF: 0.924

Gnomad4 AMR AF: 0.936

Gnomad4 ASJ AF: 0.888

Gnomad4 EAS AF: 0.983

Gnomad4 SAS AF: 0.974

Gnomad4 FIN AF: 0.877

Gnomad4 NFE AF: 0.906

Gnomad4 OTH AF: 0.923

Alfa AF: 0.891 Hom.: 2862

Bravo AF: 0.921

Asia WGS AF: 0.975 AC: 3389 AN: 3476

ClinVar

Significance: drug response

Submissions summary: Other:1

Revision: no assertion criteria provided

Submissions by phenotype

Tramadol response Other:1

drug response, no assertion criteria provided

research

Bruce Budowle Laboratory, University of North Texas Health Science Center

Apr 28, 2018

- T:M1 = postmortem ratio or tramadol to O-desmethyltramadol; t-MP = model-based clustered metabolizer phenotype inferred from T:M1

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	3.4
DANN	Benign	0.57

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs497332; hg19: chr6-154431393;