chr21-44418028-C-G

Variant names:

• chr21-44418028-C-G
• rs748381275
• NM_003307.4:c.3248C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_003307.4(TRPM2):​c.3248C>G​(p.Pro1083Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000548 in 1,460,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: TRPM2 NM_003307.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.90
• Publications: 0 publications found

Genes affected

TRPM2 (HGNC:12339): (transient receptor potential cation channel subfamily M member 2) The protein encoded by this gene forms a tetrameric cation channel that is permeable to calcium, sodium, and potassium and is regulated by free intracellular ADP-ribose. The encoded protein is activated by oxidative stress and confers susceptibility to cell death. Alternative splicing results in multiple transcript variants encoding distinct protein isoforms. Additional transcript variants of this gene have been described, but their full-length nature is not known. [provided by RefSeq, Feb 2016]

TRPM2-AS (HGNC:50758): (TRPM2 antisense RNA)

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.938

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003307.4. 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
	TRPM2	NM_003307.4	MANE Select	c.3248C>G	p.Pro1083Arg	missense	Exon 21 of 32	NP_003298.2	O94759-1
	TRPM2	NM_001320350.2		c.3248C>G	p.Pro1083Arg	missense	Exon 21 of 33	NP_001307279.2	E9PGK7
	TRPM2	NM_001433516.1		c.3248C>G	p.Pro1083Arg	missense	Exon 22 of 33	NP_001420445.1	O94759-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRPM2	ENST00000397928.6	TSL:1 MANE Select	c.3248C>G	p.Pro1083Arg	missense	Exon 21 of 32	ENSP00000381023.1	O94759-1
	TRPM2	ENST00000397932.6	TSL:1	c.3248C>G	p.Pro1083Arg	missense	Exon 21 of 33	ENSP00000381026.2	E9PGK7
	TRPM2	ENST00000300482.9	TSL:1	c.3248C>G	p.Pro1083Arg	missense	Exon 22 of 33	ENSP00000300482.5	O94759-1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.0000120 AC: 3 AN: 250366 AF XY: 0.00000738

Gnomad AFR exome AF: 0.0000616

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000177

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000548 AC: 8 AN: 1460886 Hom.: 0 Cov.: 36 AF XY: 0.00000413 AC XY: 3 AN XY: 726782

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52452

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1111992

Other (OTH) AF: 0.00 AC: 0 AN: 60386

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Pathogenic	0.15
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.80	D
Eigen	Pathogenic	0.69
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.042	D
MetaRNN	Pathogenic	0.94	D
MetaSVM	Benign	-0.41	T
MutationAssessor	Pathogenic	3.7	H
PhyloP100		5.9
PrimateAI	Uncertain	0.56	T
PROVEAN	Pathogenic	-8.4	D
REVEL	Pathogenic	0.67
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.91
MutPred		0.74		Loss of glycosylation at P1083 (P = 0.0191)
MVP		0.44
MPC		0.64
ClinPred		1.0	D
GERP RS		4.5
Varity_R		0.84
gMVP		0.94
Mutation Taster		=30/70	disease causing

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: rs748381275; hg19: chr21-45837911;