chr17-7671457-C-T

Variant names:

• chr17-7671457-C-T
• rs1641549
• NM_000546.6:c.994-742G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000546.6(TP53):​c.994-742G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.351 in 151,960 control chromosomes in the GnomAD database, including 10,312 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.35 (10312 hom., cov: 32)
• Consequence: TP53 NM_000546.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.10
• Publications: 13 publications found

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: ClinGen, G2P, Labcorp Genetics (formerly Invitae), 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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.02).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.515 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000546.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53	NM_000546.6	MANE Select	c.994-742G>A		intron	N/A	NP_000537.3
	TP53	NM_001126112.3		c.994-742G>A		intron	N/A	NP_001119584.1	K7PPA8
	TP53	NM_001407262.1		c.994-742G>A		intron	N/A	NP_001394191.1	K7PPA8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53	ENST00000269305.9	TSL:1 MANE Select	c.994-742G>A		intron	N/A	ENSP00000269305.4	P04637-1
	TP53	ENST00000445888.6	TSL:1	c.994-742G>A		intron	N/A	ENSP00000391478.2	P04637-1
	TP53	ENST00000610292.4	TSL:1	c.877-742G>A		intron	N/A	ENSP00000478219.1	P04637-4

Frequencies

GnomAD3 genomes AF: 0.350 AC: 53178 AN: 151842 Hom.: 10277 Cov.: 32

Gnomad AFR AF: 0.520

Gnomad AMI AF: 0.325

Gnomad AMR AF: 0.290

Gnomad ASJ AF: 0.282

Gnomad EAS AF: 0.425

Gnomad SAS AF: 0.479

Gnomad FIN AF: 0.268

Gnomad MID AF: 0.354

Gnomad NFE AF: 0.263

Gnomad OTH AF: 0.320

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.351 AC: 53268 AN: 151960 Hom.: 10312 Cov.: 32 AF XY: 0.353 AC XY: 26175 AN XY: 74254

African (AFR) AF: 0.521 AC: 21579 AN: 41458

American (AMR) AF: 0.290 AC: 4428 AN: 15252

Ashkenazi Jewish (ASJ) AF: 0.282 AC: 978 AN: 3468

East Asian (EAS) AF: 0.426 AC: 2189 AN: 5142

South Asian (SAS) AF: 0.477 AC: 2296 AN: 4812

European-Finnish (FIN) AF: 0.268 AC: 2826 AN: 10558

Middle Eastern (MID) AF: 0.361 AC: 106 AN: 294

European-Non Finnish (NFE) AF: 0.263 AC: 17876 AN: 67954

Other (OTH) AF: 0.329 AC: 694 AN: 2110

Alfa AF: 0.323 Hom.: 1071

Bravo AF: 0.356

Asia WGS AF: 0.477 AC: 1656 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.52
DANN	Benign	0.53
PhyloP100		-2.1
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs1641549; hg19: chr17-7574775; COSMIC: COSV53538718; COSMIC: COSV53538718;