3-49024825-G-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000884.3(IMPDH2):​c.1296-23C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000164 in 1,461,754 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: 33)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

IMPDH2
NM_000884.3 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.36
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 24 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IMPDH2NM_000884.3 linkuse as main transcriptc.1296-23C>A intron_variant ENST00000326739.9 NP_000875.2 P12268A0A384N6C2
IMPDH2NM_001410759.1 linkuse as main transcriptc.1368-23C>A intron_variant NP_001397688.1
IMPDH2NM_001410760.1 linkuse as main transcriptc.1293-23C>A intron_variant NP_001397689.1
IMPDH2NM_001410761.1 linkuse as main transcriptc.1221-23C>A intron_variant NP_001397690.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IMPDH2ENST00000326739.9 linkuse as main transcriptc.1296-23C>A intron_variant 1 NM_000884.3 ENSP00000321584.4 P12268
ENSG00000290315ENST00000703936.1 linkuse as main transcriptc.3336-23C>A intron_variant ENSP00000515567.1 A0A994J749

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251222
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135774
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1461754
Hom.:
0
Cov.:
33
AF XY:
0.0000193
AC XY:
14
AN XY:
727176
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000216
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
19
DANN
Benign
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.82
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.82
Position offset: -2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs72624918; hg19: chr3-49062258; API