17-7673734-G-C

Position:

• chr17-7673734-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 6P and 2B. PM1 PM2 PM5 BP4_Moderate

The NM_000546.6(TP53):​c.886C>G​(p.His296Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H296Y) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: TP53 NM_000546.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.481

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a region_of_interest Required for interaction with ZNF385A (size 200) in uniprot entity P53_HUMAN there are 489 pathogenic changes around while only 68 benign (88%) in NM_000546.6
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr17-7673733-T-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 100816.Status of the report is no_assertion_criteria_provided, 0 stars.
• BP4: Computational evidence support a benign effect (MetaRNN=0.090368986).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TP53	NM_000546.6	c.886C>G	p.His296Asp	missense_variant	8/11	ENST00000269305.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TP53	ENST00000269305.9	c.886C>G	p.His296Asp	missense_variant	8/11	1	NM_000546.6	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.082
BayesDel_addAF	Uncertain	0.085	D
BayesDel_noAF	Benign	-0.12
CADD	Benign	4.5
DANN	Benign	0.54
DEOGEN2	Benign	0.0021	T;.;.;.;.;T;T;.;T;.;.;.;.;.;.;T;.;.;.
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.054	N
LIST_S2	Benign	0.83	T;T;T;T;T;T;T;.;.;.;T;T;.;T;T;T;T;T;T
M_CAP	Pathogenic	0.49	D
MetaRNN	Benign	0.090	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Pathogenic	1.3	D
MutationAssessor	Benign	-0.69	.;.;.;.;.;.;.;.;N;.;N;N;N;.;.;N;.;.;.
MutationTaster	Benign	1.0	N;N;N;N;N;N
PrimateAI	Benign	0.31	T
PROVEAN	Benign	0.040	N;.;.;.;.;.;.;.;N;.;.;N;N;.;.;N;.;.;N
REVEL	Uncertain	0.42
Sift	Benign	0.63	T;.;.;.;.;.;.;.;T;.;.;T;T;.;.;T;.;.;T
Sift4G	Benign	0.63	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen		0.0, 0.0010	.;.;.;.;.;.;.;.;B;.;B;B;B;.;.;B;.;.;.
Vest4		0.23
MutPred		0.20		Loss of catalytic residue at E298 (P = 0.1111);.;.;.;.;.;.;.;Loss of catalytic residue at E298 (P = 0.1111);.;Loss of catalytic residue at E298 (P = 0.1111);Loss of catalytic residue at E298 (P = 0.1111);Loss of catalytic residue at E298 (P = 0.1111);.;.;Loss of catalytic residue at E298 (P = 0.1111);.;.;.;
MVP		0.74
MPC		0.084
ClinPred		0.049	T
GERP RS		1.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.1
Varity_R		0.51
gMVP		0.34

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-7577052;