chr1-109621149-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001368809.2(AMPD2):​c.-27C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,444,240 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: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

AMPD2
NM_001368809.2 5_prime_UTR

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.63
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.091745585).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AMPD2NM_001368809.2 linkuse as main transcriptc.-27C>A 5_prime_UTR_variant 2/19 ENST00000528667.7
AMPD2NM_001308170.1 linkuse as main transcriptc.42C>A p.Pro14= synonymous_variant 1/17
AMPD2NM_004037.9 linkuse as main transcriptc.-27C>A 5_prime_UTR_variant 1/18
AMPD2NM_139156.4 linkuse as main transcriptc.10+871C>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AMPD2ENST00000528667.7 linkuse as main transcriptc.-27C>A 5_prime_UTR_variant 2/191 NM_001368809.2 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000471
AC:
1
AN:
212242
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
116384
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:
0.0000110
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1444240
Hom.:
0
Cov.:
35
AF XY:
0.00000139
AC XY:
1
AN XY:
717296
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:
9.07e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000827
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 01, 2022The c.136C>A (p.P46T) alteration is located in exon 1 (coding exon 1) of the AMPD2 gene. This alteration results from a C to A substitution at nucleotide position 136, causing the proline (P) at amino acid position 46 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
13
DANN
Benign
0.95
DEOGEN2
Benign
0.20
T;T
Eigen
Benign
-0.69
Eigen_PC
Benign
-0.63
FATHMM_MKL
Benign
0.65
D
LIST_S2
Benign
0.49
.;T
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.092
T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;N;N
PrimateAI
Benign
0.45
T
PROVEAN
Benign
0.040
N;N
REVEL
Benign
0.028
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.0030
B;B
Vest4
0.065
MutPred
0.23
Gain of glycosylation at P46 (P = 0.0253);Gain of glycosylation at P46 (P = 0.0253);
MVP
0.41
MPC
0.73
ClinPred
0.39
T
GERP RS
0.70
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.050
gMVP
0.22

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: rs773680696; hg19: chr1-110163771; API