NM_000546.6:c.1136G>A

Variant names:

• chr17-7669655-C-T
• rs863224682
• NM_000546.6:c.1136G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 1P and 5B. BP4 PM2_Supporting BS3

This summary comes from the ClinGen Evidence Repository: The NM_000546.5:c.1136G>A variant in TP53 is a missense variant predicted to cause substitution of arginine by histidine at amino acid 379 (p.Arg379His). In vitro assays performed in yeast and/or human cell lines showed functional transactivation and retained growth suppression activity indicating that this variant does not impact protein function (BS3; PMIDs: 12826609, 29979965, 30224644). This variant has a BayesDel score ≤ -0.008 and Align GVGD (Zebrafish) is Class C0 (BP4_moderate). This variant has an allele frequency of 0.00002671 (2/74876 alleles) in the African/African American population in gnomAD v4.1.0 which is lower than the Clingen TP53 VCEP threshold (<0.00004) for PM2_Supporting, and therefore meets this criterion (PM2_Supporting). In summary, this variant meets the criteria to be classified as likely benign for Li Fraumeni syndrome based on the ACMG/AMP criteria applied, as specified by the ClinGen TP53 VCEP: PM2_supporting, BP4_moderate, BS3. (Bayesian Points: -5; VCEP specifications version 2.0, Date of Approval: 1/16/2025). LINK:https://erepo.genome.network/evrepo/ui/classification/CA10584584/MONDO:0018875/009

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: TP53 NM_000546.6 missense
• Clinical Significance: Likely benign reviewed by expert panel U:7 B:2
• Conservation: PhyloP100: 0.736
• Publications: 50 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 -4 ACMG points.

• PM2: For more information check the summary or visit ClinGen Evidence Repository.
• BP4: 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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53	NM_000546.6	MANE Select	c.1136G>A	p.Arg379His	missense	Exon 11 of 11	NP_000537.3
	TP53	NM_001126112.3		c.1136G>A	p.Arg379His	missense	Exon 11 of 11	NP_001119584.1
	TP53	NM_001407262.1		c.1136G>A	p.Arg379His	missense	Exon 12 of 12	NP_001394191.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53	ENST00000269305.9	TSL:1 MANE Select	c.1136G>A	p.Arg379His	missense	Exon 11 of 11	ENSP00000269305.4
	TP53	ENST00000445888.6	TSL:1	c.1136G>A	p.Arg379His	missense	Exon 11 of 11	ENSP00000391478.2
	TP53	ENST00000610292.4	TSL:1	c.1019G>A	p.Arg340His	missense	Exon 10 of 10	ENSP00000478219.1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152056 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251418 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1461826 Hom.: 0 Cov.: 31 AF XY: 0.00000825 AC XY: 6 AN XY: 727224

African (AFR) AF: 0.0000299 AC: 1 AN: 33476

American (AMR) AF: 0.0000224 AC: 1 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

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

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5766

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111964

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152056 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74276

African (AFR) AF: 0.0000242 AC: 1 AN: 41400

American (AMR) AF: 0.00 AC: 0 AN: 15252

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10596

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68004

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: reviewed by expert panel

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

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.067
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Benign	20
DANN	Uncertain	0.97
DEOGEN2	Uncertain	0.55	D
Eigen	Benign	-0.28
Eigen_PC	Benign	-0.15
FATHMM_MKL	Benign	0.75	D
LIST_S2	Benign	0.82	T
M_CAP	Uncertain	0.22	D
MetaRNN	Benign	0.23	T
MetaSVM	Pathogenic	0.95	D
MutationAssessor	Benign	0.90	L
PhyloP100		0.74
PrimateAI	Benign	0.23	T
PROVEAN	Benign	-0.53	N
REVEL	Uncertain	0.34
Sift	Benign	0.061	T
Sift4G	Benign	0.14	T
Polyphen		0.0040	B
Vest4		0.57
MVP		0.89
MPC		2.0
ClinPred		0.24	T
GERP RS		3.3
Varity_R		0.24
gMVP		0.18
Mutation Taster		=20/80	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		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: rs863224682; hg19: chr17-7572973; COSMIC: COSV52708100;