chr1-109630740-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM2PM5PP3_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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D739G) has been classified as Likely pathogenic.

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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-109630741-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 429760.Status of the report is criteria_provided_single_submitter, 1 stars.
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 linkc.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 linkc.2215G>T p.Asp739Tyr missense_variant 18/191 NM_001368809.2 ENSP00000436541.2

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;.;.;.
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