NM_000849.5:c.670G>C

Variant names:

• chr1-109737079-C-G
• rs7483
• NM_000849.5:c.670G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_000849.5(GSTM3):​c.670G>C​(p.Val224Leu) variant causes a missense 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. 16/22 in silico tools predict 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: 33)
• Consequence: GSTM3 NM_000849.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.69
• Publications: 0 publications found

Genes affected

GSTM3 (HGNC:4635): (glutathione S-transferase mu 3) Cytosolic and membrane-bound forms of glutathione S-transferase are encoded by two distinct supergene families. At present, eight distinct classes of the soluble cytoplasmic mammalian glutathione S-transferases have been identified: alpha, kappa, mu, omega, pi, sigma, theta and zeta. This gene encodes a glutathione S-transferase that belongs to the mu class. The mu class of enzymes functions in the detoxification of electrophilic compounds, including carcinogens, therapeutic drugs, environmental toxins and products of oxidative stress, by conjugation with glutathione. The genes encoding the mu class of enzymes are organized in a gene cluster on chromosome 1p13.3 and are known to be highly polymorphic. These genetic variations can change an individual's susceptibility to carcinogens and toxins as well as affect the toxicity and efficacy of certain drugs. Mutations of this class mu gene have been linked with a slight increase in a number of cancers, likely due to exposure with environmental toxins. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2008]

ENSG00000241720 (HGNC:):

GSTM5 (HGNC:4637): (glutathione S-transferase mu 5) Cytosolic and membrane-bound forms of glutathione S-transferase are encoded by two distinct supergene families. At present, eight distinct classes of the soluble cytoplasmic mammalian glutathione S-transferases have been identified: alpha, kappa, mu, omega, pi, sigma, theta and zeta. This gene encodes a glutathione S-transferase that belongs to the mu class. The mu class of enzymes functions in the detoxification of electrophilic compounds, including carcinogens, therapeutic drugs, environmental toxins and products of oxidative stress, by conjugation with glutathione. The genes encoding the mu class of enzymes are organized in a gene cluster on chromosome 1p13.3 and are known to be highly polymorphic. These genetic variations can change an individual's susceptibility to carcinogens and toxins as well as affect the toxicity and efficacy of certain drugs. Diversification of these genes has occurred in regions encoding substrate-binding domains, as well as in tissue expression patterns, to accommodate an increasing number of foreign compounds. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.061106533).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000849.5. 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
	GSTM3	NM_000849.5	MANE Select	c.670G>C	p.Val224Leu	missense	Exon 9 of 9	NP_000840.2
	GSTM3	NR_024537.2		n.904G>C		non_coding_transcript_exon	Exon 8 of 8

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GSTM3	ENST00000361066.7	TSL:1 MANE Select	c.670G>C	p.Val224Leu	missense	Exon 9 of 9	ENSP00000354357.2
	GSTM3	ENST00000256594.7	TSL:1	c.670G>C	p.Val224Leu	missense	Exon 8 of 8	ENSP00000256594.3
	ENSG00000241720	ENST00000431955.1	TSL:3	n.565C>G		non_coding_transcript_exon	Exon 3 of 4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.71
CADD	Benign	0.0060
DANN	Benign	0.70
DEOGEN2	Benign	0.037	T
Eigen	Benign	-1.8
Eigen_PC	Benign	-1.8
FATHMM_MKL	Benign	0.015	N
LIST_S2	Benign	0.32	T
M_CAP	Benign	0.0096	T
MetaRNN	Benign	0.061	T
MetaSVM	Benign	-0.94	T
MutationAssessor	Benign	-0.14	N
PhyloP100		-1.7
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-0.13	N
REVEL	Benign	0.022
Sift	Benign	0.23	T
Sift4G	Benign	0.30	T
Polyphen		0.0	B
Vest4		0.020
MutPred		0.16		Gain of stability (P = 0.0205)
MVP		0.040
ClinPred		0.035	T
GERP RS		-5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.070
gMVP		0.30
Mutation Taster		=99/1	polymorphism

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

Other links and lift over

dbSNP: rs7483; hg19: chr1-110279701;