rs138175138

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001368809.2(AMPD2):​c.488G>A​(p.Arg163Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,611,950 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R163P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

AMPD2
NM_001368809.2 missense

Scores

1
4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.76
Variant links:
Genes affected
AMPD2 (HGNC:469): (adenosine monophosphate deaminase 2) The protein encoded by this gene is important in purine metabolism by converting AMP to IMP. The encoded protein, which acts as a homotetramer, is one of three AMP deaminases found in mammals. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), AMPD2. . Gene score misZ 2.8298 (greater than the threshold 3.09). Trascript score misZ 3.6281 (greater than threshold 3.09). GenCC has associacion of gene with pontocerebellar hypoplasia type 9, hereditary spastic paraplegia 63.
BP4
Computational evidence support a benign effect (MetaRNN=0.19281125).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AMPD2NM_001368809.2 linkuse as main transcriptc.488G>A p.Arg163Gln missense_variant 6/19 ENST00000528667.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AMPD2ENST00000528667.7 linkuse as main transcriptc.488G>A p.Arg163Gln missense_variant 6/191 NM_001368809.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152184
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000161
AC:
4
AN:
247924
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134292
show subpopulations
Gnomad AFR exome
AF:
0.000249
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:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1459766
Hom.:
0
Cov.:
35
AF XY:
0.00000275
AC XY:
2
AN XY:
726222
show subpopulations
Gnomad4 AFR exome
AF:
0.0000900
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152184
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000987
Hom.:
0
Bravo
AF:
0.0000718
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.080
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.29
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.24
.;T;T;.;T;.;.
Eigen
Benign
0.094
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.97
D;.;D;D;.;D;D
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.19
T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.0
.;L;L;.;.;.;.
MutationTaster
Benign
0.94
D;D;D;D;D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
0.090
N;N;N;N;N;N;N
REVEL
Benign
0.22
Sift
Benign
0.59
T;T;T;T;D;T;T
Sift4G
Benign
0.59
T;T;T;T;D;T;T
Polyphen
0.22
B;B;B;P;.;.;B
Vest4
0.48
MVP
0.56
MPC
0.77
ClinPred
0.46
T
GERP RS
5.1
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.0
Varity_R
0.42
gMVP
0.86

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

LitVar

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

Other links and lift over

dbSNP: rs138175138; hg19: chr1-110169006; API