rs587777394

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP2PP3_StrongPP5

The NM_001368809.2(AMPD2):​c.2215G>T​(p.Asp739Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,796 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

AMPD2
NM_001368809.2 missense

Scores

16
2
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.94
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 Likely_pathogenic. Variant got 8 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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.968
PP5
Variant 1-109630740-G-T is Pathogenic according to our data. Variant chr1-109630740-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 132812.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr1-109630740-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AMPD2NM_001368809.2 linkuse as main transcriptc.2215G>T p.Asp739Tyr missense_variant 18/19 ENST00000528667.7 NP_001355738.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AMPD2ENST00000528667.7 linkuse as main transcriptc.2215G>T p.Asp739Tyr missense_variant 18/191 NM_001368809.2 ENSP00000436541 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459796
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
726062
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Pontocerebellar hypoplasia type 9 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMAug 01, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.48
D
BayesDel_noAF
Pathogenic
0.45
CADD
Pathogenic
34
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.92
.;D;D;.;.;.
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.99
D;.;D;D;D;D
M_CAP
Pathogenic
0.48
D
MetaRNN
Pathogenic
0.97
D;D;D;D;D;D
MetaSVM
Uncertain
0.41
D
MutationAssessor
Pathogenic
4.0
.;H;H;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-7.3
D;D;D;D;D;D
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
D;D;D;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D;D;D
Polyphen
1.0
D;D;D;D;.;D
Vest4
0.97
MutPred
0.80
.;Gain of methylation at K788 (P = 0.1216);Gain of methylation at K788 (P = 0.1216);.;.;.;
MVP
0.91
MPC
1.9
ClinPred
1.0
D
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.96
gMVP
0.99

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs587777394; hg19: chr1-110173362; API