rs1204379654

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 4P and 5B. PM1PM5BP6BS2

The NM_000546.6(TP53):​c.850A>T​(p.Thr284Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000204 in 1,614,030 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T284P) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

TP53
NM_000546.6 missense

Scores

3
6
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 1.29

Publications

80 publications found
Variant links:
Genes affected
TP53 (HGNC:11998): (tumor protein p53) This gene encodes a tumor suppressor protein containing transcriptional activation, DNA binding, and oligomerization domains. The encoded protein responds to diverse cellular stresses to regulate expression of target genes, thereby inducing cell cycle arrest, apoptosis, senescence, DNA repair, or changes in metabolism. Mutations in this gene are associated with a variety of human cancers, including hereditary cancers such as Li-Fraumeni syndrome. Alternative splicing of this gene and the use of alternate promoters result in multiple transcript variants and isoforms. Additional isoforms have also been shown to result from the use of alternate translation initiation codons from identical transcript variants (PMIDs: 12032546, 20937277). [provided by RefSeq, Dec 2016]
TP53 Gene-Disease associations (from GenCC):
  • breast cancer
    Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
  • Li-Fraumeni syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet
  • Li-Fraumeni syndrome 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp
  • adrenocortical carcinoma, hereditary
    Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics
  • sarcoma
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • bone marrow failure syndrome 5
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • colorectal cancer
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • choroid plexus carcinoma
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM1
In a hotspot region, there are 42 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 13 benign, 30 uncertain in NM_000546.6
PM5
Other missense variant is known to change same aminoacid residue: Variant chr17-7673770-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1763670.
BP6
Variant 17-7673770-T-A is Benign according to our data. Variant chr17-7673770-T-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 458571.
BS2
High AC in GnomAdExome4 at 32 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TP53NM_000546.6 linkc.850A>T p.Thr284Ser missense_variant Exon 8 of 11 ENST00000269305.9 NP_000537.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TP53ENST00000269305.9 linkc.850A>T p.Thr284Ser missense_variant Exon 8 of 11 1 NM_000546.6 ENSP00000269305.4

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152138
Hom.:
0
Cov.:
31
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
GnomAD4 exome
AF:
0.0000219
AC:
32
AN:
1461892
Hom.:
0
Cov.:
33
AF XY:
0.0000179
AC XY:
13
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000279
AC:
31
AN:
1112012
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
3
6
9
12
15
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:
152138
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.675
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2Benign:1
Jan 20, 2021
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Nov 11, 2024
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 30, 2018
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Li-Fraumeni syndrome Uncertain:2
May 31, 2023
All of Us Research Program, National Institutes of Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jun 17, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with serine, which is neutral and polar, at codon 284 of the TP53 protein (p.Thr284Ser). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with colon cancer (PMID: 26086041). ClinVar contains an entry for this variant (Variation ID: 458571). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (PMID: 12826609, 29979965, 30224644) indicates that this missense variant is not expected to disrupt TP53 function with a negative predictive value of 97.5%. Experimental studies have shown that this missense change does not substantially affect TP53 function (PMID: 12826609, 29979965, 30224644). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided Benign:1
May 11, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 30224644, 21232794, 29205322, 12826609, 29979965, 24665023, 24868540, 22568511, 26086041) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.020
CADD
Benign
22
DANN
Benign
0.97
DEOGEN2
Uncertain
0.52
D;.;.;.;.;T;T;.;D;.;.;.;.;.;.;D;.;.;.
Eigen
Benign
0.015
Eigen_PC
Benign
-0.049
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.61
T;T;T;T;T;T;T;.;.;.;T;T;.;T;T;T;T;T;T
M_CAP
Pathogenic
0.47
D
MetaRNN
Uncertain
0.51
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.1
.;.;.;.;.;.;.;.;M;.;M;M;M;.;.;M;.;.;.
PhyloP100
1.3
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-1.8
N;.;.;.;.;.;.;.;N;.;.;N;N;.;.;N;.;.;N
REVEL
Uncertain
0.49
Sift
Benign
0.097
T;.;.;.;.;.;.;.;T;.;.;T;T;.;.;T;.;.;T
Sift4G
Benign
0.15
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.91, 0.89, 0.33
.;.;.;.;.;.;.;.;P;.;P;B;P;.;.;P;.;.;.
Vest4
0.68
MVP
0.91
MPC
0.19
ClinPred
0.70
D
GERP RS
3.9
PromoterAI
-0.035
Neutral
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.0
Varity_R
0.59
gMVP
0.25
Mutation Taster
=2/98
disease causing

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

Other links and lift over

dbSNP: rs1204379654; hg19: chr17-7577088; COSMIC: COSV53272353; API