9-34635682-G-C

Variant names:

• chr9-34635682-G-C
• NM_005866.4:c.622C>G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005866.4(SIGMAR1):​c.622C>G​(p.Arg208Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R208W) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SIGMAR1 NM_005866.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.29

Genes affected

SIGMAR1 (HGNC:8157): (sigma non-opioid intracellular receptor 1) This gene encodes a receptor protein that interacts with a variety of psychotomimetic drugs, including cocaine and amphetamines. The receptor is believed to play an important role in the cellular functions of various tissues associated with the endocrine, immune, and nervous systems. As indicated by its previous name, opioid receptor sigma 1 (OPRS1), the product of this gene was erroneously thought to function as an opioid receptor; it is now thought to be a non-opioid receptor. Mutations in this gene has been associated with juvenile amyotrophic lateral sclerosis 16. Alternative splicing of this gene results in transcript variants encoding distinct isoforms. [provided by RefSeq, Aug 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIGMAR1	NM_005866.4	c.622C>G	p.Arg208Gly	missense_variant	Exon 4 of 4	ENST00000277010.9	NP_005857.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SIGMAR1	ENST00000277010.9	c.622C>G	p.Arg208Gly	missense_variant	Exon 4 of 4	1	NM_005866.4	ENSP00000277010.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Uncertain	0.033	T
BayesDel_noAF	Benign	-0.19
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.71	.;D;.
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Uncertain	0.93	D;D;D
M_CAP	Benign	0.063	D
MetaRNN	Uncertain	0.69	D;D;D
MetaSVM	Benign	-0.50	T
MutationAssessor	Benign	1.9	.;L;.
PrimateAI	Uncertain	0.51	T
PROVEAN	Uncertain	-3.5	D;D;D
REVEL	Uncertain	0.38
Sift	Benign	0.037	D;D;D
Sift4G	Uncertain	0.022	D;D;D
Polyphen		0.97	.;D;.
Vest4		0.42
MutPred		0.70		.;Loss of methylation at R208 (P = 0.0071);.;
MVP		0.75
MPC		1.8
ClinPred		0.98	D
GERP RS		3.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.86
gMVP		0.93

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-34635679;