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GeneBe

4-56441765-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001079524.2(PAICS):​c.119C>T​(p.Thr40Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000964 in 1,452,692 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: not found (cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

PAICS
NM_001079524.2 missense

Scores

11
5
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.68
Variant links:
Genes affected
PAICS (HGNC:8587): (phosphoribosylaminoimidazole carboxylase and phosphoribosylaminoimidazolesuccinocarboxamide synthase) This gene encodes a bifunctional enzyme containing phosphoribosylaminoimidazole carboxylase activity in its N-terminal region and phosphoribosylaminoimidazole succinocarboxamide synthetase in its C-terminal region. It catalyzes steps 6 and 7 of purine biosynthesis. The gene is closely linked and divergently transcribed with a locus that encodes an enzyme in the same pathway, and transcription of the two genes is coordinately regulated. The human genome contains several pseudogenes of this gene. Multiple 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 Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.912

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PAICSNM_001079524.2 linkuse as main transcriptc.119C>T p.Thr40Ile missense_variant 2/9 ENST00000512576.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PAICSENST00000512576.3 linkuse as main transcriptc.119C>T p.Thr40Ile missense_variant 2/91 NM_001079524.2 P3P22234-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000856
AC:
2
AN:
233764
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
126196
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000308
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:
0.00000953
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000964
AC:
14
AN:
1452692
Hom.:
0
Cov.:
29
AF XY:
0.00000831
AC XY:
6
AN XY:
721714
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000231
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:
0.00000994
Gnomad4 OTH exome
AF:
0.0000333
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000370
Hom.:
0
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000123
AC:
1
ExAC
AF:
0.00000828
AC:
1

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 submitterclinical testingAmbry GeneticsJun 21, 2023The c.119C>T (p.T40I) alteration is located in exon 2 (coding exon 2) of the PAICS gene. This alteration results from a C to T substitution at nucleotide position 119, causing the threonine (T) at amino acid position 40 to be replaced by an isoleucine (I). 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
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.27
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.49
T;T;.;T
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.97
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Benign
0.031
D
MetaRNN
Pathogenic
0.91
D;D;D;D
MetaSVM
Uncertain
0.38
D
MutationAssessor
Pathogenic
4.2
H;.;H;H
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Pathogenic
-5.5
D;D;D;D
REVEL
Pathogenic
0.71
Sift
Uncertain
0.0020
D;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D
Polyphen
1.0
D;D;D;D
Vest4
0.98
MVP
0.82
MPC
0.50
ClinPred
1.0
D
GERP RS
5.5
Varity_R
0.92
gMVP
0.87

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: rs370569487; hg19: chr4-57307931; API