chr2-73938938-A-G

Variant names:

• chr2-73938938-A-G
• NM_080916.3:c.171A>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_080916.3(DGUOK):​c.171A>G​(p.Leu57Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,570 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: DGUOK NM_080916.3 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.600
• Publications: 0 publications found

Genes affected

DGUOK (HGNC:2858): (deoxyguanosine kinase) In mammalian cells, the phosphorylation of purine deoxyribonucleosides is mediated predominantly by two deoxyribonucleoside kinases, cytosolic deoxycytidine kinase and mitochondrial deoxyguanosine kinase. The protein encoded by this gene is responsible for phosphorylation of purine deoxyribonucleosides in the mitochondrial matrix. In addition, this protein phosphorylates several purine deoxyribonucleoside analogs used in the treatment of lymphoproliferative disorders, and this phosphorylation is critical for the effectiveness of the analogs. Alternative splice variants encoding different protein isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

DGUOK-AS1 (HGNC:43441): (DGUOK antisense RNA 1)

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.6).
• BP6: Variant 2-73938938-A-G is Benign according to our data. Variant chr2-73938938-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 2896066.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.6 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_080916.3. 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
	DGUOK	NM_080916.3	MANE Select	c.171A>G	p.Leu57Leu	synonymous	Exon 2 of 7	NP_550438.1	E5KSL5
	DGUOK	NM_080918.3		c.171A>G	p.Leu57Leu	synonymous	Exon 2 of 5	NP_550440.1	Q16854-2
	DGUOK	NM_001318859.2		c.171A>G	p.Leu57Leu	synonymous	Exon 2 of 5	NP_001305788.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DGUOK	ENST00000264093.9	TSL:1 MANE Select	c.171A>G	p.Leu57Leu	synonymous	Exon 2 of 7	ENSP00000264093.4	Q16854-1
	DGUOK	ENST00000418996.5	TSL:1	n.143-7781A>G		intron	N/A	ENSP00000408209.1	Q16854-6
	DGUOK	ENST00000893377.1		c.171A>G	p.Leu57Leu	synonymous	Exon 2 of 7	ENSP00000563436.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000411 AC: 6 AN: 1461570 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727126

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000540 AC: 6 AN: 1111736

Other (OTH) AF: 0.00 AC: 0 AN: 60384

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, single submitter

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

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.60
CADD	Benign	10
DANN	Benign	0.76
PhyloP100		0.60
Mutation Taster		=92/8	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

hg19: chr2-74166065;