chr20-45375074-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_014477.3(TP53TG5):​c.733G>A​(p.Ala245Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000806 in 1,613,830 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: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

TP53TG5
NM_014477.3 missense

Scores

2
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.84

Publications

1 publications found
Variant links:
Genes affected
TP53TG5 (HGNC:15856): (TP53 target 5) Located in chromosome and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]
SYS1-DBNDD2 (HGNC:33535): (SYS1-DBNDD2 readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription from the neighboring SYS1 Golgi-localized integral membrane protein homolog and dysbindin domain containing 2 (DBNDD2) genes. The read-through transcript includes the majority of exons from each individual gene, but it would be subject to nonsense-mediated mRNA decay (NMD) and is therefore predicted to be non-coding. [provided by RefSeq, Oct 2010]
SYS1 (HGNC:16162): (SYS1 golgi trafficking protein) SYS1 forms a complex with ADP-ribosylation factor-related protein ARFRP1 (MIM 604699) and targets ARFRP1 to the Golgi apparatus (Behnia et al., 2004 [PubMed 15077113]).[supplied by OMIM, Aug 2009]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.28880167).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014477.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TP53TG5
NM_014477.3
MANE Select
c.733G>Ap.Ala245Thr
missense
Exon 4 of 5NP_055292.1Q9Y2B4
SYS1
NM_001099791.3
c.*780C>T
3_prime_UTR
Exon 4 of 4NP_001093261.1Q8N2H4-2
SYS1-DBNDD2
NR_003189.2
n.380+9388C>T
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TP53TG5
ENST00000372726.5
TSL:1 MANE Select
c.733G>Ap.Ala245Thr
missense
Exon 4 of 5ENSP00000361811.3Q9Y2B4
SYS1-DBNDD2
ENST00000458187.5
TSL:5
n.230+9388C>T
intron
N/AENSP00000457768.1H3BUS1
SYS1
ENST00000426004.5
TSL:2
c.*780C>T
3_prime_UTR
Exon 4 of 4ENSP00000416506.1Q8N2H4-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152204
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000400
AC:
1
AN:
249872
AF XY:
0.00000740
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461626
Hom.:
0
Cov.:
29
AF XY:
0.0000110
AC XY:
8
AN XY:
727118
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86234
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53312
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1111898
Other (OTH)
AF:
0.00
AC:
0
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152204
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74368
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41440
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Benign
-0.030
T
BayesDel_noAF
Benign
-0.28
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.027
T
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Benign
0.36
N
LIST_S2
Benign
0.75
T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.29
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
2.0
M
PhyloP100
3.8
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-3.1
D
REVEL
Benign
0.13
Sift
Uncertain
0.011
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.40
MutPred
0.27
Gain of catalytic residue at A245 (P = 0.0037)
MVP
0.092
MPC
0.70
ClinPred
0.95
D
GERP RS
5.7
Varity_R
0.21
gMVP
0.025
Mutation Taster
=93/7
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs781676698; hg19: chr20-44003714; COSMIC: COSV101022373; COSMIC: COSV101022373; API