17-7674866-G-C

Variant names:

• chr17-7674866-G-C
• NM_000546.6:c.665C>G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_000546.6(TP53):​c.665C>G​(p.Pro222Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P222P) has been classified as Benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: TP53 NM_000546.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.79

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 Interaction with AXIN1 (size 176) in uniprot entity P53_HUMAN there are 53 pathogenic changes around while only 3 benign (95%) in NM_000546.6
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TP53	NM_000546.6	c.665C>G	p.Pro222Arg	missense_variant	Exon 6 of 11	ENST00000269305.9	NP_000537.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TP53	ENST00000269305.9	c.665C>G	p.Pro222Arg	missense_variant	Exon 6 of 11	1	NM_000546.6	ENSP00000269305.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.68	D;D;.;.;.;.;T;T;.;D;.;.;.;.;.;.;D;.;.;.;D
Eigen	Benign	-0.12
Eigen_PC	Benign	-0.17
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Uncertain	0.93	D;D;D;D;D;D;D;D;.;.;.;D;D;.;D;D;D;D;D;D;D
M_CAP	Pathogenic	0.42	D
MetaRNN	Uncertain	0.65	D;D;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	Benign	1.8	.;.;.;.;.;.;.;.;.;L;.;L;L;L;.;.;L;.;.;.;.
PrimateAI	Benign	0.36	T
PROVEAN	Pathogenic	-6.3	D;D;.;.;.;.;.;.;.;D;.;.;D;D;.;.;D;.;.;D;D
REVEL	Uncertain	0.60
Sift	Uncertain	0.025	D;D;.;.;.;.;.;.;.;D;.;.;D;D;.;.;D;.;.;D;D
Sift4G	Uncertain	0.026	D;T;T;T;T;T;T;T;T;D;T;T;T;T;T;T;D;T;D;T;.
Polyphen		0.98	D;.;.;.;.;.;.;.;.;B;.;B;B;B;.;.;B;.;.;.;D
Vest4		0.59
MutPred		0.51		Loss of catalytic residue at P222 (P = 0.0219);Loss of catalytic residue at P222 (P = 0.0219);.;.;.;.;.;.;.;Loss of catalytic residue at P222 (P = 0.0219);.;Loss of catalytic residue at P222 (P = 0.0219);Loss of catalytic residue at P222 (P = 0.0219);Loss of catalytic residue at P222 (P = 0.0219);.;.;Loss of catalytic residue at P222 (P = 0.0219);.;.;.;.;
MVP		0.94
MPC		1.7
ClinPred		0.97	D
GERP RS		3.0
Varity_R		0.24
gMVP		0.33

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: chr17-7578184;