9-137048998-CA-GC

Variant names:

• chr9-137048998-CA-GC
• NM_203468.3:c.1226_1227delTGinsGC
• ENTPD2 p.Leu409Arg

Variant summary

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

The NM_203468.3(ENTPD2):​c.1226_1227delTGinsGC​(p.Leu409Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. 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. L409P) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 34)
• Consequence: ENTPD2 NM_203468.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.41
• Publications: 0 publications found

Genes affected

ENTPD2 (HGNC:3364): (ectonucleoside triphosphate diphosphohydrolase 2) The protein encoded by this gene is the type 2 enzyme of the ecto-nucleoside triphosphate diphosphohydrolase family (E-NTPDase). E-NTPDases are a family of ecto-nucleosidases that hydrolyze 5'-triphosphates. This ecto-ATPase is an integral membrane protein. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_203468.3. 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
	ENTPD2	NM_203468.3	MANE Select	c.1226_1227delTGinsGC	p.Leu409Arg	missense	N/A	NP_982293.1	Q9Y5L3-1
	ENTPD2	NM_001246.4		c.1157_1158delTGinsGC	p.Leu386Arg	missense	N/A	NP_001237.1	Q9Y5L3-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ENTPD2	ENST00000355097.7	TSL:1 MANE Select	c.1226_1227delTGinsGC	p.Leu409Arg	missense	N/A	ENSP00000347213.2	Q9Y5L3-1
	ENTPD2	ENST00000312665.7	TSL:1	c.1157_1158delTGinsGC	p.Leu386Arg	missense	N/A	ENSP00000312494.5	Q9Y5L3-2
	ENTPD2	ENST00000460614.1	TSL:1	n.615_616delTGinsGC		non_coding_transcript_exon	Exon 1 of 2

Frequencies

GnomAD3 genomes Cov.: 34

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.4

Splicing

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: chr9-139943450;