3-189890874-T-G

Variant names:

• chr3-189890874-T-G
• rs121908846
• NM_003722.5:c.1738T>G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 7P and 1B. PM1 PM2 PM5 PP2 BP4

The NM_003722.5(TP63):​c.1738T>G​(p.Ser580Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000263 in 152,216 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S580F) has been classified as Pathogenic.

• Frequency: Genomes: 𝑓 0.000026 (0 hom., cov: 32)
• Consequence: TP63 NM_003722.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.96

Genes affected

TP63 (HGNC:15979): (tumor protein p63) This gene encodes a member of the p53 family of transcription factors. The functional domains of p53 family proteins include an N-terminal transactivation domain, a central DNA-binding domain and an oligomerization domain. Alternative splicing of this gene and the use of alternative promoters results in multiple transcript variants encoding different isoforms that vary in their functional properties. These isoforms function during skin development and maintenance, adult stem/progenitor cell regulation, heart development and premature aging. Some isoforms have been found to protect the germline by eliminating oocytes or testicular germ cells that have suffered DNA damage. Mutations in this gene are associated with ectodermal dysplasia, and cleft lip/palate syndrome 3 (EEC3); split-hand/foot malformation 4 (SHFM4); ankyloblepharon-ectodermal defects-cleft lip/palate; ADULT syndrome (acro-dermato-ungual-lacrimal-tooth); limb-mammary syndrome; Rap-Hodgkin syndrome (RHS); and orofacial cleft 8. [provided by RefSeq, Aug 2016]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM1: In a domain SAM (size 66) in uniprot entity P63_HUMAN there are 9 pathogenic changes around while only 1 benign (90%) in NM_003722.5
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr3-189890875-C-T is described in Lovd as [Pathogenic].
• PP2: Missense variant in the TP63 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 73 curated pathogenic missense variants (we use a threshold of 10). The gene has 15 curated benign missense variants. Gene score misZ: 2.2077 (below the threshold of 3.09). Trascript score misZ: 3.5096 (above the threshold of 3.09). GenCC associations: The gene is linked to Rapp-Hodgkin syndrome, ADULT syndrome, split hand-foot malformation 4, limb-mammary syndrome, premature ovarian failure 21, split hand-foot malformation, ankyloblepharon-ectodermal defects-cleft lip/palate syndrome, EEC syndrome, ectrodactyly, ectodermal dysplasia, and cleft lip-palate syndrome 3.
• BP4: Computational evidence support a benign effect (MetaRNN=0.366924).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TP63	NM_003722.5	c.1738T>G	p.Ser580Ala	missense_variant	Exon 13 of 14	ENST00000264731.8	NP_003713.3
TP63	NM_001114980.2	c.1456T>G	p.Ser486Ala	missense_variant	Exon 11 of 12	ENST00000354600.10	NP_001108452.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TP63	ENST00000264731.8	c.1738T>G	p.Ser580Ala	missense_variant	Exon 13 of 14	1	NM_003722.5	ENSP00000264731.3
TP63	ENST00000354600.10	c.1456T>G	p.Ser486Ala	missense_variant	Exon 11 of 12	1	NM_001114980.2	ENSP00000346614.5

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152216 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000965

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

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251292 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135836

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152216 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74360

Gnomad4 AFR AF: 0.0000965

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000322 Hom.: 0

Bravo AF: 0.0000227

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.042	T
BayesDel_noAF	Benign	-0.12
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.57	D;.;.;.;.
Eigen	Uncertain	0.30
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.83	T;T;T;T;T
M_CAP	Benign	0.070	D
MetaRNN	Benign	0.37	T;T;T;T;T
MetaSVM	Uncertain	0.020	D
MutationAssessor	Benign	1.5	L;.;.;.;.
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-0.95	N;N;N;N;N
REVEL	Uncertain	0.40
Sift	Uncertain	0.0070	D;D;D;D;D
Sift4G	Uncertain	0.012	D;D;D;D;D
Polyphen		0.59	P;.;P;P;.
Vest4		0.54
MVP		0.74
MPC		0.55
ClinPred		0.35	T
GERP RS		6.0
Varity_R		0.47
gMVP		0.43

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

Publications

LitVar

Other links and lift over

dbSNP: rs121908846; hg19: chr3-189608663;