17-7669628-T-G

Variant names:

• chr17-7669628-T-G
• rs587781736
• NM_000546.6:c.1163A>C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4 BS2_Supporting BS3

This summary comes from the ClinGen Evidence Repository: Transactivation assays show retained function according to Kato, et al. and there is no evidence of a dominant negative effect or loss of function according to Giacomelli, et al. (BS3; PMID:12826609, 30224644). This variant has a BayesDel score < 0.16 and Align GVGD (Zebrafish) is Class C0 (BP4). This variant has been observed in 2-7 60+ year old females without a cancer diagnosis (BS2_Supporting; Internal laboratory contributor). In summary, TP53 c.1163A>C (p.Glu388Ala) meets criteria to be classified as likely benign for Li-Fraumeni syndrome. ACMG/AMP criteria applied, as specified by the TP53 Variant Curation Expert Panel: BS3, BP4, BS2_Supporting. LINK:https://erepo.genome.network/evrepo/ui/classification/CA000047/MONDO:0018875/009

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000089 (0 hom.)
• Consequence: TP53 NM_000546.6 missense
• Clinical Significance: Likely benign reviewed by expert panel U:2 B:4
• Conservation: PhyloP100: 2.05
• Publications: 23 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: 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

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: For more information check the summary or visit ClinGen Evidence Repository.
• BS2: For more information check the summary or visit ClinGen Evidence Repository.
• BS3: For more information check the summary or visit ClinGen Evidence Repository.

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.1163A>C	p.Glu388Ala	missense	Exon 11 of 11	NP_000537.3
	TP53	NM_001126112.3		c.1163A>C	p.Glu388Ala	missense	Exon 11 of 11	NP_001119584.1
	TP53	NM_001407262.1		c.1163A>C	p.Glu388Ala	missense	Exon 12 of 12	NP_001394191.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53	ENST00000269305.9	TSL:1 MANE Select	c.1163A>C	p.Glu388Ala	missense	Exon 11 of 11	ENSP00000269305.4
	TP53	ENST00000445888.6	TSL:1	c.1163A>C	p.Glu388Ala	missense	Exon 11 of 11	ENSP00000391478.2
	TP53	ENST00000610292.4	TSL:1	c.1046A>C	p.Glu349Ala	missense	Exon 10 of 10	ENSP00000478219.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251492 AF XY: 0.00

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: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000889 AC: 13 AN: 1461818 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727220

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: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000108 AC: 12 AN: 1111946

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000287 Hom.: 0

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: reviewed by expert panel

Pathogenic	VUS	Benign	Condition
-	1	2	Li-Fraumeni syndrome (3)
-	1	1	Hereditary cancer-predisposing syndrome (2)
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.030
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.72	D
Eigen	Uncertain	0.20
Eigen_PC	Benign	0.14
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Uncertain	0.92	D
M_CAP	Pathogenic	0.36	D
MetaRNN	Benign	0.31	T
MetaSVM	Pathogenic	0.98	D
MutationAssessor	Benign	1.8	L
PhyloP100		2.0
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-1.9	N
REVEL	Uncertain	0.55
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.047	D
Polyphen		0.89	P
Vest4		0.31
MutPred		0.17		Gain of MoRF binding (P = 0.0166)
MVP		0.88
MPC		2.3
ClinPred		0.74	D
GERP RS		4.2
Varity_R		0.60
gMVP		0.36
Mutation Taster		=21/79	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

Other links and lift over

dbSNP: rs587781736; hg19: chr17-7572946;