16-88809516-T-C
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Variant summary
Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2
The NM_000485.3(APRT):c.*182A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00147 in 954,510 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.0054 ( 7 hom., cov: 34)
Exomes 𝑓: 0.00072 ( 6 hom. )
Consequence
APRT
NM_000485.3 3_prime_UTR
NM_000485.3 3_prime_UTR
Scores
1
8
Clinical Significance
Conservation
PhyloP100: -1.84
Genes affected
APRT (HGNC:626): (adenine phosphoribosyltransferase) Adenine phosphoribosyltransferase belongs to the purine/pyrimidine phosphoribosyltransferase family. A conserved feature of this gene is the distribution of CpG dinucleotides. This enzyme catalyzes the formation of AMP and inorganic pyrophosphate from adenine and 5-phosphoribosyl-1-pyrophosphate (PRPP). It also produces adenine as a by-product of the polyamine biosynthesis pathway. A homozygous deficiency in this enzyme causes 2,8-dihydroxyadenine urolithiasis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -13 ACMG points.
BP4
Computational evidence support a benign effect (MetaRNN=0.002718091).
BP6
Variant 16-88809516-T-C is Benign according to our data. Variant chr16-88809516-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 321155.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00541 (825/152366) while in subpopulation AFR AF= 0.0189 (786/41590). AF 95% confidence interval is 0.0178. There are 7 homozygotes in gnomad4. There are 399 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 7 AR gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
APRT | NM_000485.3 | c.*182A>G | 3_prime_UTR_variant | 5/5 | ENST00000378364.8 | NP_000476.1 | ||
APRT | NM_001030018.2 | c.*186A>G | 3_prime_UTR_variant | 5/5 | NP_001025189.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
APRT | ENST00000378364 | c.*182A>G | 3_prime_UTR_variant | 5/5 | 1 | NM_000485.3 | ENSP00000367615.3 |
Frequencies
GnomAD3 genomes AF: 0.00541 AC: 823AN: 152248Hom.: 7 Cov.: 34
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GnomAD3 exomes AF: 0.00163 AC: 236AN: 144620Hom.: 0 AF XY: 0.00128 AC XY: 101AN XY: 78692
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GnomAD4 exome AF: 0.000722 AC: 579AN: 802144Hom.: 6 Cov.: 11 AF XY: 0.000618 AC XY: 258AN XY: 417400
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GnomAD4 genome AF: 0.00541 AC: 825AN: 152366Hom.: 7 Cov.: 34 AF XY: 0.00535 AC XY: 399AN XY: 74522
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
Adenine phosphoribosyltransferase deficiency Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Morquio syndrome Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Computational scores
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Name
Calibrated prediction
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Prediction
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
FATHMM_MKL
Benign
N
LIST_S2
Benign
T
MetaRNN
Benign
T
PROVEAN
Benign
N
Sift
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D
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at