2-233942718-G-T

Variant names:

• chr2-233942718-G-T
• NM_024080.5:c.669G>T
• TRPM8 p.Arg223Arg

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_024080.5(TRPM8):​c.669G>T​(p.Arg223Arg) variant causes a synonymous 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: 31)
• Consequence: TRPM8 NM_024080.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.11
• Publications: 0 publications found

Genes affected

TRPM8 (HGNC:17961): (transient receptor potential cation channel subfamily M member 8) Predicted to enable ligand-gated calcium channel activity. Predicted to be involved in calcium ion transmembrane transport and positive regulation of cold-induced thermogenesis. Predicted to act upstream of or within several processes, including cellular calcium ion homeostasis; response to cold; and thermoception. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.48).
• BP7: Synonymous conserved (PhyloP=1.11 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024080.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRPM8	NM_024080.5	MANE Select	c.669G>T	p.Arg223Arg	synonymous	Exon 6 of 26	NP_076985.4
	TRPM8	NM_001397606.1		c.669G>T	p.Arg223Arg	synonymous	Exon 6 of 22	NP_001384535.1
	TRPM8	NM_001397607.1		c.519G>T	p.Arg173Arg	synonymous	Exon 5 of 25	NP_001384536.1	A0A1L1Z857

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRPM8	ENST00000324695.9	TSL:1 MANE Select	c.669G>T	p.Arg223Arg	synonymous	Exon 6 of 26	ENSP00000323926.4	Q7Z2W7-1
	TRPM8	ENST00000355722.8	TSL:1	c.519G>T	p.Arg173Arg	synonymous	Exon 5 of 5	ENSP00000347956.4	A0A0C4DFT0
	TRPM8	ENST00000409625.1	TSL:1	c.438G>T	p.Arg146Arg	synonymous	Exon 5 of 5	ENSP00000386771.1	Q7Z2W7-3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.48
CADD	Benign	7.9
DANN	Benign	0.81
PhyloP100		1.1
Mutation Taster		=290/10	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr2-234851362;