3-49024511-C-T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 1P and 5B. PP2BP4BS2

The NM_000884.3(IMPDH2):​c.1507G>A​(p.Val503Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,614,164 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

IMPDH2
NM_000884.3 missense

Scores

1
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.67

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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 2 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 2.503 (below the threshold of 3.09). Trascript score misZ: 3.3023 (above the threshold of 3.09).
BP4
Computational evidence support a benign effect (MetaRNN=0.39142126).
BS2
High AC in GnomAdExome4 at 19 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000884.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IMPDH2
NM_000884.3
MANE Select
c.1507G>Ap.Val503Ile
missense
Exon 13 of 14NP_000875.2P12268
IMPDH2
NM_001410759.1
c.1579G>Ap.Val527Ile
missense
Exon 14 of 15NP_001397688.1H0Y4R1
IMPDH2
NM_001410760.1
c.1504G>Ap.Val502Ile
missense
Exon 13 of 14NP_001397689.1A0A7I2YQK5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IMPDH2
ENST00000326739.9
TSL:1 MANE Select
c.1507G>Ap.Val503Ile
missense
Exon 13 of 14ENSP00000321584.4P12268
ENSG00000290315
ENST00000703936.1
c.3547G>Ap.Val1183Ile
missense
Exon 21 of 22ENSP00000515567.1A0A994J749
IMPDH2
ENST00000937815.1
c.1675G>Ap.Val559Ile
missense
Exon 13 of 14ENSP00000607874.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152156
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000795
AC:
2
AN:
251480
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461888
Hom.:
0
Cov.:
33
AF XY:
0.0000124
AC XY:
9
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000162
AC:
18
AN:
1112008
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000131
AC:
2
AN:
152276
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41560
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5174
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.027
T
BayesDel_noAF
Benign
-0.28
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.39
T
MetaSVM
Uncertain
-0.15
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
4.7
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-0.79
N
REVEL
Uncertain
0.35
Sift
Benign
0.10
T
Sift4G
Benign
0.19
T
Polyphen
0.62
P
Vest4
0.22
MVP
0.86
MPC
1.3
ClinPred
0.84
D
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.53
gMVP
0.93
Mutation Taster
=97/3
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

Publications

Other links and lift over

dbSNP: rs201681745; hg19: chr3-49061944; API