2-215318174-C-T
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_004044.7(ATIC):c.164C>T(p.Thr55Met) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,613,986 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )
Consequence
ATIC
NM_004044.7 missense
NM_004044.7 missense
Scores
14
4
1
Clinical Significance
Conservation
PhyloP100: 7.09
Genes affected
ATIC (HGNC:794): (5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase/IMP cyclohydrolase) This gene encodes a bifunctional protein that catalyzes the last two steps of the de novo purine biosynthetic pathway. The N-terminal domain has phosphoribosylaminoimidazolecarboxamide formyltransferase activity, and the C-terminal domain has IMP cyclohydrolase activity. A mutation in this gene results in AICA-ribosiduria. [provided by RefSeq, Sep 2009]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.982
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATIC | NM_004044.7 | c.164C>T | p.Thr55Met | missense_variant | 3/16 | ENST00000236959.14 | NP_004035.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
ATIC | ENST00000236959.14 | c.164C>T | p.Thr55Met | missense_variant | 3/16 | 1 | NM_004044.7 | ENSP00000236959 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152132Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000557 AC: 14AN: 251474Hom.: 0 AF XY: 0.0000515 AC XY: 7AN XY: 135908
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GnomAD4 exome AF: 0.0000246 AC: 36AN: 1461736Hom.: 0 Cov.: 31 AF XY: 0.0000275 AC XY: 20AN XY: 727170
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GnomAD4 genome AF: 0.0000394 AC: 6AN: 152250Hom.: 0 Cov.: 32 AF XY: 0.0000672 AC XY: 5AN XY: 74450
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 31, 2024 | The c.164C>T (p.T55M) alteration is located in exon 3 (coding exon 3) of the ATIC gene. This alteration results from a C to T substitution at nucleotide position 164, causing the threonine (T) at amino acid position 55 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Pathogenic
D;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
H;.
MutationTaster
Benign
D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D
REVEL
Pathogenic
Sift
Pathogenic
D;D
Sift4G
Pathogenic
D;D
Polyphen
D;.
Vest4
MutPred
Gain of catalytic residue at V51 (P = 0.0161);.;
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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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