chr22-41169525-G-A

Position:

• chr22-41169525-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1 PM2 PP3_Strong PP5

The NM_001429.4(EP300):​c.4195G>A​(p.Asp1399Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: EP300 NM_001429.4 missense
• Clinical Significance: Likely pathogenic no assertion criteria provided P:6
• Conservation: PhyloP100: 9.89

Genes affected

EP300 (HGNC:3373): (E1A binding protein p300) This gene encodes the adenovirus E1A-associated cellular p300 transcriptional co-activator protein. It functions as histone acetyltransferase that regulates transcription via chromatin remodeling and is important in the processes of cell proliferation and differentiation. It mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. This gene has also been identified as a co-activator of HIF1A (hypoxia-inducible factor 1 alpha), and thus plays a role in the stimulation of hypoxia-induced genes such as VEGF. Defects in this gene are a cause of Rubinstein-Taybi syndrome and may also play a role in epithelial cancer. [provided by RefSeq, Jul 2008]

(HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

• PM1: In a mutagenesis_site Abolished acetyltransferase and acyltransferase activities. Abolishes autoacetylation. Does not interact with TFAP2A and inhibits transcriptional coactivation of TFAP2A by CITED2. Does not inhibit interaction with CITED2, DNA-binding of TFAP2A or nuclear localization of TFAP2A or CITED2. No enhancement of FOXO1-mediated transcriptional activity. No inhibition of insulin-mediated translocation to the cytoplasm. No acetylation of RXRA. (size 0) in uniprot entity EP300_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.988
• PP5: Variant 22-41169525-G-A is Pathogenic according to our data. Variant chr22-41169525-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376401.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EP300	NM_001429.4	c.4195G>A	p.Asp1399Asn	missense_variant	26/31	ENST00000263253.9	NP_001420.2
EP300	NM_001362843.2	c.4117G>A	p.Asp1373Asn	missense_variant	25/30		NP_001349772.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EP300	ENST00000263253.9	c.4195G>A	p.Asp1399Asn	missense_variant	26/31	1	NM_001429.4	ENSP00000263253	P2
	ENST00000415054.1	n.139C>T		non_coding_transcript_exon_variant	2/3	3
EP300	ENST00000674155.1	c.4117G>A	p.Asp1373Asn	missense_variant	25/30			ENSP00000501078	A2
EP300	ENST00000703544.1	c.*2115G>A		3_prime_UTR_variant, NMD_transcript_variant	25/30			ENSP00000515365

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:6

Revision: no assertion criteria provided

Submissions by phenotype

Carcinoma of esophagus Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

May 31, 2016

- -

Squamous cell lung carcinoma Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

May 31, 2016

- -

Medulloblastoma Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

May 31, 2016

- -

Transitional cell carcinoma of the bladder Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

May 31, 2016

- -

Neoplasm of uterine cervix Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

May 31, 2016

- -

Squamous cell carcinoma of the head and neck Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Database of Curated Mutations (DoCM)

May 31, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.98	D
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	1.0	D
M_CAP	Pathogenic	0.85	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Pathogenic	0.99	D
MutationAssessor	Pathogenic	3.8	H
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.82	D
PROVEAN	Pathogenic	-4.7	D
REVEL	Pathogenic	0.88
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.90
MutPred		0.89		Gain of sheet (P = 0.0827);
MVP		0.98
ClinPred		1.0	D
GERP RS		5.5
Varity_R		0.92
gMVP		0.96

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1057519889; hg19: chr22-41565529; COSMIC: COSV54326888; COSMIC: COSV54326888;