dbSNP rs11557546: IMPDH2:p.Val305Val (chr3-49026415-G-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP7BS2

The NM_000884.3(IMPDH2):c.915C>G(p.Val305Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000231 in 1,613,308 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 𝑓 0.00021 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00023 ( 1 hom. )

Consequence

IMPDH2
NM_000884.3 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.10

Publications

2 publications found

Variant links:

Genes affected

IMPDH2 (HGNC:6053): (inosine monophosphate dehydrogenase 2) This gene encodes the rate-limiting enzyme in the de novo guanine nucleotide biosynthesis. It is thus involved in maintaining cellular guanine deoxy- and ribonucleotide pools needed for DNA and RNA synthesis. The encoded protein catalyzes the NAD-dependent oxidation of inosine-5'-monophosphate into xanthine-5'-monophosphate, which is then converted into guanosine-5'-monophosphate. This gene is up-regulated in some neoplasms, suggesting it may play a role in malignant transformation. [provided by RefSeq, Jul 2008]

IMPDH2 links:

ENSG00000290315 (HGNC:):

ENSG00000290315 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (REVEL=0.262).

BP7

Synonymous conserved (PhyloP=3.1 with no splicing effect.

BS2

High AC in GnomAd4 at 32 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IMPDH2	NM_000884.3 link	c.915C>G	p.Val305Val	synonymous_variant	Exon 9 of 14	ENST00000326739.9	NP_000875.2	P12268A0A384N6C2
IMPDH2	NM_001410759.1 link	c.915C>G	p.Val305Val	synonymous_variant	Exon 9 of 15		NP_001397688.1
IMPDH2	NM_001410760.1 link	c.840C>G	p.Val280Val	synonymous_variant	Exon 8 of 14		NP_001397689.1
IMPDH2	NM_001410761.1 link	c.840C>G	p.Val280Val	synonymous_variant	Exon 8 of 13		NP_001397690.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IMPDH2	ENST00000326739.9 link	c.915C>G	p.Val305Val	synonymous_variant	Exon 9 of 14	1	NM_000884.3	ENSP00000321584.4		P12268
ENSG00000290315	ENST00000703936.1 link	c.2955C>G	p.Val985Val	synonymous_variant	Exon 17 of 22			ENSP00000515567.1		A0A994J749

Frequencies

GnomAD3 genomes

AF:

0.000210

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00836

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000388

AC:

AN:

250082

AF XY:

0.000333

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000581

Gnomad ASJ exome

AF:

0.00767

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000133

Gnomad OTH exome

AF:

0.000490

GnomAD4 exome

AF:

0.000233

AC:

340

AN:

1461076

Hom.:

Cov.:

AF XY:

0.000227

AC XY:

165

AN XY:

726794

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33470

American (AMR)

AF:

0.0000672

AC:

AN:

44642

Ashkenazi Jewish (ASJ)

AF:

0.00800

AC:

209

AN:

26118

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86080

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53398

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.0000738

AC:

AN:

1111542

Other (OTH)

AF:

0.000745

AC:

AN:

60368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000210

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74366

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41458

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00836

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68048

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000915

Hom.:

Bravo

AF:

0.000249

EpiCase

AF:

0.000273

EpiControl

AF:

0.000238

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.53

CADD

Benign

6.2

(source)

DANN

Benign

0.83

PhyloP100

3.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over